1. Set maxFiles Count: maxFiles: 1
2. In maxfilesexceeded event, clear all files and add a new file:

event: Called for each file that has been rejected because the number of files exceeds the maxFiles limit.

var myDropzone = new Dropzone("div#yourDropzoneID", { url: "/file/post", 
uploadMultiple: false, maxFiles: 1 });

myDropzone.on("maxfilesexceeded", function (file) {
    myDropzone.removeAllFiles();
    myDropzone.addFile(file);
});

HTML

<form name="my_form" id="my_form" accept-charset="multipart/form-data" onsubmit="return false">
    <input id="name" name="name" placeholder="Enter Name" type="text" value="">
    <textarea id="detail" name="detail" placeholder="Enter Detail"></textarea>
    <select name="gender" id="gender">
        <option value="male" selected="selected">Male</option>
        <option value="female">Female</option>
    </select>
    <input type="file" id="my_images" name="my_images" multiple="" accept="image/x-png,image/gif,image/jpeg"/>
</form>

JavaScript

var data = new FormData();

//Form data
var form_data = $('#my_form').serializeArray();
$.each(form_data, function (key, input) {
    data.append(input.name, input.value);
});

//File data
var file_data = $('input[name="my_images"]')[0].files;
for (var i = 0; i < file_data.length; i++) {
    data.append("my_images[]", file_data[i]);
}

//Custom data
data.append('key', 'value');

$.ajax({
    url: "URL",
    method: "post",
    processData: false,
    contentType: false,
    data: data,
    success: function (data) {
        //success
    },
    error: function (e) {
        //error
    }
});

PHP

<?php
    echo '<pre>';
    print_r($_POST);
    print_r($_FILES);
    echo '</pre>';
    die();
?>

OP here (I am answering this question after two years, the post made by Daniel Cerecedo was not bad at a time, but the web services are developing very fast)

After three years of full-time software development (with focus also on software architecture, project management and microservice architecture) I definitely choose the second way (but with one general endpoint) as the best one.

If you have a special endpoint for images, it gives you much more power over handling those images.

We have the same REST API (Node.js) for both - mobile apps (iOS/android) and frontend (using React). This is 2017, therefore you don't want to store images locally, you want to upload them to some cloud storage (Google cloud, s3, cloudinary, ...), therefore you want some general handling over them.

Our typical flow is, that as soon as you select an image, it starts uploading on background (usually POST on /images endpoint), returning you the ID after uploading. This is really user-friendly, because user choose an image and then typically proceed with some other fields (i.e. address, name, ...), therefore when he hits "send" button, the image is usually already uploaded. He does not wait and watching the screen saying "uploading...".

The same goes for getting images. Especially thanks to mobile phones and limited mobile data, you don't want to send original images, you want to send resized images, so they do not take that much bandwidth (and to make your mobile apps faster, you often don't want to resize it at all, you want the image that fits perfectly into your view). For this reason, good apps are using something like cloudinary (or we do have our own image server for resizing).

Also, if the data are not private, then you send back to app/frontend just URL and it downloads it from cloud storage directly, which is huge saving of bandwidth and processing time for your server. In our bigger apps there are a lot of terabytes downloaded every month, you don't want to handle that directly on each of your REST API server, which is focused on CRUD operation. You want to handle that at one place (our Imageserver, which have caching etc.) or let cloud services handle all of it.

Cons : The only "cons" which you should think of is "not assigned images". User select images and continue with filling other fields, but then he says "nah" and turn off the app or tab, but meanwhile you successfully uploaded the image. This means you have uploaded an image which is not assigned anywhere.

There are several ways of handling this. The most easiest one is "I don't care", which is a relevant one, if this is not happening very often or you even have desire to store every image user send you (for any reason) and you don't want any deletion.

Another one is easy too - you have CRON and i.e. every week and you delete all unassigned images older than one week.

  <label for="fusk">dsfdsfsd</label>
  <input id="fusk" type="file" name="photo" style="display: none;">

why not? ^_^

See the example here

Here's an updated answer for Angular 4 & 5. TransformRequest and angular.identity were dropped. I've also included the ability to combine files with JSON data in one request.

Angular 5 Solution:

import {HttpClient} from '@angular/common/http';

uploadFileToUrl(files, restObj, uploadUrl): Promise<any> {
  // Note that setting a content-type header
  // for mutlipart forms breaks some built in
  // request parsers like multer in express.
  const options = {} as any; // Set any options you like
  const formData = new FormData();

  // Append files to the virtual form.
  for (const file of files) {
    formData.append(file.name, file)
  }

  // Optional, append other kev:val rest data to the form.
  Object.keys(restObj).forEach(key => {
    formData.append(key, restObj[key]);
  });

  // Send it.
  return this.httpClient.post(uploadUrl, formData, options)
    .toPromise()
    .catch((e) => {
      // handle me
    });
}

Angular 4 Solution:

// Note that these imports below are deprecated in Angular 5
import {Http, RequestOptions} from '@angular/http';

uploadFileToUrl(files, restObj, uploadUrl): Promise<any> {
  // Note that setting a content-type header
  // for mutlipart forms breaks some built in
  // request parsers like multer in express.
  const options = new RequestOptions();
  const formData = new FormData();

  // Append files to the virtual form.
  for (const file of files) {
    formData.append(file.name, file)
  }

  // Optional, append other kev:val rest data to the form.
  Object.keys(restObj).forEach(key => {
    formData.append(key, restObj[key]);
  });

  // Send it.
  return this.http.post(uploadUrl, formData, options)
    .toPromise()
    .catch((e) => {
      // handle me
    });
}

Looks like python requests does not handle extremely large multi-part files.

The documentation recommends you look into requests-toolbelt.

Here's the pertinent page from their documentation.

Again if you don't want to use bodyParser, the following works:

var express = require('express');
var http = require('http');
var app = express();

app.use(express.static('./public'));


app.configure(function(){
    app.use(express.methodOverride());
    app.use(express.multipart({
        uploadDir: './uploads',
        keepExtensions: true
    }));
});


app.use(app.router);

app.get('/upload', function(req, res){
    // Render page with upload form
    res.render('upload');
});

app.post('/upload', function(req, res){
    // Returns json of uploaded file
    res.json(req.files);
});

http.createServer(app).listen(3000, function() {
    console.log('App started');
});

i know what went wrong you see you used "" instead of '' in this

$target_Path = $target_Path.basename( 

   "myFile.png"

);

html:
    <div class="upload">
        <span>upload image</span>
        <input
          #Image
          type="file"
          (change)="handleFileInput($event.target.files)"
          accept=".jpg,.svg,.png,.jpeg"
        />
        <img
          width="100%"
          height="100%"
          *ngIf="imageUrl"
          [src]="imageUrl"
          class="image"
        />
    </div>

app.component.ts

export class AppComponent {
  options = [{ value: "This is value 1", checked: true }];
  statuses = ["control"];

  // name = "Angular";//
  fileToUpload: any;
  imageUrl: any;
  handleFileInput(file: FileList) {
    this.fileToUpload = file.item(0);

    //Show image preview
    let reader = new FileReader();
    reader.onload = (event: any) => {
      this.imageUrl = event.target.result;
    };
    reader.readAsDataURL(this.fileToUpload);
  }
}

open the file named "jquery.fileupload-ui.js", you will see the code like this:

 $.widget('blueimp.fileupload', $.blueimp.fileupload, {

    options: {
        // By default, files added to the widget are uploaded as soon
        // as the user clicks on the start buttons. To enable automatic
        // uploads, set the following option to true:
        acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,
        autoUpload: false,
        // The ID of the upload template:
        uploadTemplateId: 'template-upload',
        // The ID of the download template:
        downloadTemplateId: 'template-download',
        ????

just add one line code --- the new attribute "acceptFileTypes",like this:

 options: {
        // By default, files added to the widget are uploaded as soon
        // as the user clicks on the start buttons. To enable automatic
        // uploads, set the following option to true:
        **acceptFileTypes: /(\.|\/)(gif|jpe?g|png)$/i,**
        autoUpload: false,
        // The ID of the upload template:
        uploadTemplateId: 'template-upload',
        // The ID of the download template:
        downloadTemplateId: 'template-d

now you'll see everything is allright!~ you just take the attribute with a wrong place.

Check your php.ini for enable_post_data_reading=On , because:

Disabling this option causes $_POST and $_FILES not to be populated. The only way to read postdata will then be through the php://input stream wrapper. (... )

In http://php.net/manual/en/ini.core.php#ini.enable-post-data-reading

I realize this is a very old question, but hopefully this will help someone else out as I came upon this post looking for the same thing. I had a similar issue, just that my metadata was a Guid and int. The solution is the same though. You can just make the needed metadata part of the URL.

POST accepting method in your "Controller" class:

public Task<HttpResponseMessage> PostFile(string name, float latitude, float longitude)
{
    //See http://stackoverflow.com/a/10327789/431906 for how to accept a file
    return null;
}

Then in whatever you're registering routes, WebApiConfig.Register(HttpConfiguration config) for me in this case.

config.Routes.MapHttpRoute(
    name: "FooController",
    routeTemplate: "api/{controller}/{name}/{latitude}/{longitude}",
    defaults: new { }
);

Add the file to a formData object, and set the Content-Type header to multipart/form-data.

var formData = new FormData();
var imagefile = document.querySelector('#file');
formData.append("image", imagefile.files[0]);
axios.post('upload_file', formData, {
    headers: {
      'Content-Type': 'multipart/form-data'
    }
})

This setting goes in your web.config file. It affects the entire application, though... I don't think you can set it per page.

<configuration>
  <system.web>
    <httpRuntime maxRequestLength="xxx" />
  </system.web>
</configuration>

"xxx" is in KB. The default is 4096 (= 4 MB).

Try document.getElementById("FileUpload1").value this value should have a path for a file to be uploaded, just strip all dirs from that value and you will have file name.

On virtual hosting check your disk quota.

if quota exceed, move_uploaded_file return error.

PS : I've been looking for this for a long time :)

Okay. If you do not want to store the file in database and store in the application, like assets (custom folder), you can define non-db instance variable defined by attr_accessor: document and use form_for - f.file_field to get the file,

In controller,

 @person = Person.new(person_params)

Here person_params return whitelisted params[:person] (define yourself)

Save file as,

dir = "#{Rails.root}/app/assets/custom_path"
FileUtils.mkdir(dir) unless File.directory? dir
document = @person.document.document_file_name # check document uploaded params
File.copy_stream(@font.document, "#{dir}/#{document}")

Note, Add this path in .gitignore & if you want to use this file again add this path asset_pathan of application by application.rb

Whenever form read file field, it get store in tmp folder, later you can store at your place, I gave example to store at assets

note: Storing files like this will increase the size of the application, better to store in the database using paperclip.

For security reasons browsers do not allow this, i.e. JavaScript in browser has no access to the File System, however using HTML5 File API, only Firefox provides a mozFullPath property, but if you try to get the value it returns an empty string:

$('input[type=file]').change(function () {
    console.log(this.files[0].mozFullPath);
});

http://jsfiddle.net/SCK5A/

So don't waste your time.

edit: If you need the file's path for reading a file you can use the FileReader API instead. Here is a related question on SO: Preview an image before it is uploaded.

<form id="uploadForm" class="disp-inline" role="form" action="" method="post" enctype="multipart/form-data">
    <input type="file" name="file" id="file">
</form>
<button onclick="checkSize();"></button>
<script>
    function checkSize(){
        var size = $('#uploadForm')["0"].firstChild.files["0"].size;
        console.log(size);
    }
</script>

I found this to be the easiest if you don't plan on submitted the form through standard ajax / html5 methods, but of course it works with anything.

NOTES:

var size = $('#uploadForm')["0"]["0"].files["0"].size;

This used to work, but it doesn't in chrome anymore, i just tested the code above and it worked in both ff and chrome (lastest). The second ["0"] is now firstChild.

Better and quicker approach without any software to download.

• Open command prompt and follow steps mentioned below
• cd path/from/where/file/istobe/copied
• ftp (serverip or name)
• It will ask for Server(AIX) User: (username)
• It will ask for password : (password)
• cd path/where/file/istobe/copied
• pwd (to check current path)
• mput (directory name which is to be copied)

This should work.

Actually, just before FF3 was out, I did some experiments, and FF2 sends only the filename, like did Opera 9.0. Only IE sends the full path. The behavior makes sense, because the server doesn't have to know where the user stores the file on his computer, it is irrelevant to the upload process. Unless you are writing an intranet application and get the file by direct network access!

What have changed (and that's the real point of the bug item you point to) is that FF3 no longer let access to the file path from JavaScript. And won't let type/paste a path there, which is more annoying for me: I have a shell extension which copies the path of a file from Windows Explorer to the clipboard and I used it a lot in such form. I solved the issue by using the DragDropUpload extension. But this becomes off-topic, I fear.

I wonder what your Web forms are doing to stop working with this new behavior.

[EDIT] After reading the page linked by Mike, I see indeed intranet uses of the path (identify a user for example) and local uses (show preview of an image, local management of files). User Jam-es seems to provide a workaround with nsIDOMFile (not tried yet).

The "Postman - REST Client" is not suitable for doing post action with setting content-type.You can try to use "Advanced REST client" or others.

Additionally, headers was replace by consumes and produces since Spring 3.1 M2, see https://spring.io/blog/2011/06/13/spring-3-1-m2-spring-mvc-enhancements. And you can directly use produces = MediaType.MULTIPART_FORM_DATA_VALUE.

This can be done using HTML5, but will only work in browsers that support it. Here's an example.

Bear in mind you'll need an alternative method for browsers that don't support this. I've had a lot of success with this plugin, which takes a lot of the work out of your hands.

Is the image file ayrton_senna_movie_wallpaper_by_bashgfx-d4cm6x6.jpg in your static directory? If you move it to your static directory and update your HTML as such:

<img src="/static/ayrton_senna_movie_wallpaper_by_bashgfx-d4cm6x6.jpg">

It should work.

Also, it is worth noting, there is a better way to structure this.

File structure:

app.py
static
   |----ayrton_senna_movie_wallpaper_by_bashgfx-d4cm6x6.jpg
templates
   |----index.html

app.py

from flask import Flask, render_template, url_for
app = Flask(__name__)

@app.route('/index', methods=['GET', 'POST'])
def lionel(): 
    return render_template('index.html')

if __name__ == '__main__':
    app.run()

templates/index.html

<html>
  <head>

  </head>
  <body>
    <h1>Hi Lionel Messi</h1>

  <img src="{{url_for('static', filename='ayrton_senna_movie_wallpaper_by_bashgfx-d4cm6x6.jpg')}}" />

  </body>

</html>

Doing it this way ensures that you are not hard-coding a URL path for your static assets.

Client side Upload Canceling

On modern browsers (FF >= 3.6, Chrome >= 19.0, Opera >= 12.0, and buggy on Safari), you can use the HTML5 File API. When the value of a file input changes, this API will allow you to check whether the file size is within your requirements. Of course, this, as well as MAX_FILE_SIZE, can be tampered with so always use server side validation.

<form method="post" enctype="multipart/form-data" action="upload.php">
    <input type="file" name="file" id="file" />
    <input type="submit" name="submit" value="Submit" />
</form>

<script>
document.forms[0].addEventListener('submit', function( evt ) {
    var file = document.getElementById('file').files[0];

    if(file && file.size < 10485760) { // 10 MB (this size is in bytes)
        //Submit form        
    } else {
        //Prevent default and display error
        evt.preventDefault();
    }
}, false);
</script>

Server Side Upload Canceling

On the server side, it is impossible to stop an upload from happening from PHP because once PHP has been invoked the upload has already completed. If you are trying to save bandwidth, you can deny uploads from the server side with the ini setting upload_max_filesize. The trouble with this is this applies to all uploads so you'll have to pick something liberal that works for all of your uploads. The use of MAX_FILE_SIZE has been discussed in other answers. I suggest reading the manual on it. Do know that it, along with anything else client side (including the javascript check), can be tampered with so you should always have server side (PHP) validation.

PHP Validation

On the server side you should validate that the file is within the size restrictions (because everything up to this point except for the INI setting could be tampered with). You can use the $_FILES array to find out the upload size. (Docs on the contents of $_FILES can be found below the MAX_FILE_SIZE docs)

upload.php

<?php
if(isset($_FILES['file'])) {
    if($_FILES['file']['size'] > 10485760) { //10 MB (size is also in bytes)
        // File too big
    } else {
        // File within size restrictions
    }
}

This code works for me:

<script type="application/javascript">
    $('#elementID').change(function(event){
        var fileName = event.target.files[0].name;
        if (event.target.nextElementSibling!=null){
            event.target.nextElementSibling.innerText=fileName;
        }
    });
</script>

Catching the user id as path variable (recommended):

curl -i -X POST -H "Content-Type: multipart/form-data" 
-F "[email protected]" http://mysuperserver/media/1234/upload/

Catching the user id as part of the form:

curl -i -X POST -H "Content-Type: multipart/form-data" 
-F "[email protected];userid=1234" http://mysuperserver/media/upload/

or:

curl -i -X POST -H "Content-Type: multipart/form-data" 
-F "[email protected]" -F "userid=1234" http://mysuperserver/media/upload/

You can Try this,

$newfilename= date('dmYHis').str_replace(" ", "", basename($_FILES["file"]["name"]));

move_uploaded_file($_FILES["file"]["tmp_name"], "../img/imageDirectory/" . $newfilename);

As of IE8, the full path is no longer sent to sites in the Internet Zone.

See the "File Upload Control" section at the end of this post: http://blogs.msdn.com/ie/archive/2008/07/02/ie8-security-part-v-comprehensive-protection.aspx for discussion.

JavaScript:

<script>
/* jquery.form.min.js */
(function(e){"use strict";if(typeof define==="function"&&define.amd){define(["jquery"],e)}else{e(typeof jQuery!="undefined"?jQuery:window.Zepto)}})(function(e){"use strict";function r(t){var n=t.data;if(!t.isDefaultPrevented()){t.preventDefault();e(t.target).ajaxSubmit(n)}}function i(t){var n=t.target;var r=e(n);if(!r.is("[type=submit],[type=image]")){var i=r.closest("[type=submit]");if(i.length===0){return}n=i[0]}var s=this;s.clk=n;if(n.type=="image"){if(t.offsetX!==undefined){s.clk_x=t.offsetX;s.clk_y=t.offsetY}else if(typeof e.fn.offset=="function"){var o=r.offset();s.clk_x=t.pageX-o.left;s.clk_y=t.pageY-o.top}else{s.clk_x=t.pageX-n.offsetLeft;s.clk_y=t.pageY-n.offsetTop}}setTimeout(function(){s.clk=s.clk_x=s.clk_y=null},100)}function s(){if(!e.fn.ajaxSubmit.debug){return}var t="[jquery.form] "+Array.prototype.join.call(arguments,"");if(window.console&&window.console.log){window.console.log(t)}else if(window.opera&&window.opera.postError){window.opera.postError(t)}}var t={};t.fileapi=e("<input type='file'/>").get(0).files!==undefined;t.formdata=window.FormData!==undefined;var n=!!e.fn.prop;e.fn.attr2=function(){if(!n){return this.attr.apply(this,arguments)}var e=this.prop.apply(this,arguments);if(e&&e.jquery||typeof e==="string"){return e}return this.attr.apply(this,arguments)};e.fn.ajaxSubmit=function(r){function k(t){var n=e.param(t,r.traditional).split("&");var i=n.length;var s=[];var o,u;for(o=0;o<i;o++){n[o]=n[o].replace(/\+/g," ");u=n[o].split("=");s.push([decodeURIComponent(u[0]),decodeURIComponent(u[1])])}return s}function L(t){var n=new FormData;for(var s=0;s<t.length;s++){n.append(t[s].name,t[s].value)}if(r.extraData){var o=k(r.extraData);for(s=0;s<o.length;s++){if(o[s]){n.append(o[s][0],o[s][1])}}}r.data=null;var u=e.extend(true,{},e.ajaxSettings,r,{contentType:false,processData:false,cache:false,type:i||"POST"});if(r.uploadProgress){u.xhr=function(){var t=e.ajaxSettings.xhr();if(t.upload){t.upload.addEventListener("progress",function(e){var t=0;var n=e.loaded||e.position;var i=e.total;if(e.lengthComputable){t=Math.ceil(n/i*100)}r.uploadProgress(e,n,i,t)},false)}return t}}u.data=null;var a=u.beforeSend;u.beforeSend=function(e,t){if(r.formData){t.data=r.formData}else{t.data=n}if(a){a.call(this,e,t)}};return e.ajax(u)}function A(t){function T(e){var t=null;try{if(e.contentWindow){t=e.contentWindow.document}}catch(n){s("cannot get iframe.contentWindow document: "+n)}if(t){return t}try{t=e.contentDocument?e.contentDocument:e.document}catch(n){s("cannot get iframe.contentDocument: "+n);t=e.document}return t}function k(){function f(){try{var e=T(v).readyState;s("state = "+e);if(e&&e.toLowerCase()=="uninitialized"){setTimeout(f,50)}}catch(t){s("Server abort: ",t," (",t.name,")");_(x);if(w){clearTimeout(w)}w=undefined}}var t=a.attr2("target"),n=a.attr2("action"),r="multipart/form-data",u=a.attr("enctype")||a.attr("encoding")||r;o.setAttribute("target",p);if(!i||/post/i.test(i)){o.setAttribute("method","POST")}if(n!=l.url){o.setAttribute("action",l.url)}if(!l.skipEncodingOverride&&(!i||/post/i.test(i))){a.attr({encoding:"multipart/form-data",enctype:"multipart/form-data"})}if(l.timeout){w=setTimeout(function(){b=true;_(S)},l.timeout)}var c=[];try{if(l.extraData){for(var h in l.extraData){if(l.extraData.hasOwnProperty(h)){if(e.isPlainObject(l.extraData[h])&&l.extraData[h].hasOwnProperty("name")&&l.extraData[h].hasOwnProperty("value")){c.push(e('<input type="hidden" name="'+l.extraData[h].name+'">').val(l.extraData[h].value).appendTo(o)[0])}else{c.push(e('<input type="hidden" name="'+h+'">').val(l.extraData[h]).appendTo(o)[0])}}}}if(!l.iframeTarget){d.appendTo("body")}if(v.attachEvent){v.attachEvent("onload",_)}else{v.addEventListener("load",_,false)}setTimeout(f,15);try{o.submit()}catch(m){var g=document.createElement("form").submit;g.apply(o)}}finally{o.setAttribute("action",n);o.setAttribute("enctype",u);if(t){o.setAttribute("target",t)}else{a.removeAttr("target")}e(c).remove()}}function _(t){if(m.aborted||M){return}A=T(v);if(!A){s("cannot access response document");t=x}if(t===S&&m){m.abort("timeout");E.reject(m,"timeout");return}else if(t==x&&m){m.abort("server abort");E.reject(m,"error","server abort");return}if(!A||A.location.href==l.iframeSrc){if(!b){return}}if(v.detachEvent){v.detachEvent("onload",_)}else{v.removeEventListener("load",_,false)}var n="success",r;try{if(b){throw"timeout"}var i=l.dataType=="xml"||A.XMLDocument||e.isXMLDoc(A);s("isXml="+i);if(!i&&window.opera&&(A.body===null||!A.body.innerHTML)){if(--O){s("requeing onLoad callback, DOM not available");setTimeout(_,250);return}}var o=A.body?A.body:A.documentElement;m.responseText=o?o.innerHTML:null;m.responseXML=A.XMLDocument?A.XMLDocument:A;if(i){l.dataType="xml"}m.getResponseHeader=function(e){var 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</script>
    <script type="text/javascript">
        $(document).ready(function () {
            $('#myform').on('change', '.wpcf7-file', function (e) {
                e.preventDefault();
                var myParent = $(this).parent();
                var filname= $('input[type=file]').val()

                if (filname) { 
                $(this).parent().find('#progress-div').show();          
                $('#myform').ajaxSubmit({
                    // target: '#progress-div123',/**********only for response************/
                    beforeSubmit: function () {
                        myParent.find('#progress-bar').width('0%');
                    },
                    uploadProgress: function (event, position, total, percentComplete) {
                        myParent.find('#progress-bar').width(percentComplete + '%');
                        myParent.find('#progress-bar').html('<div id="progress-status">' + percentComplete + ' %</div>')
                    },
                    success: function showResponse(responseText, statusText, xhr, $form) {

                        //myParent.find('#progress-div').hide(10000);
                    },
                    resetForm: false
                });

                }
                return false;
            });


           /***********Error msg if file not valid***************/
                $('input[type=file]').change(function () {
                var val = $(this).val().toLowerCase();
                var regex = new RegExp("(.*?)\.(pdf|txt|jpg|png|doc|docx|xlx|xls|xlsx|jpg|ppt|pptx|tif|tiff|\n\
                bmp|pcd|gif|bmp|zip|rar|odt|avi|ogg|m4a|mov|mp3|mp4|mpg|wav|wmv|stp|sldprt|sldasm|iges|igs|stl|x_t|step\n\
                |stp|prt|asm|idw|iam|ipt|dxf|dwg|pdf|slddrw|dwf)$");
                if (!(regex.test(val))) {
                    $(this).val('');
                    alert('Please select correct file format');
                }
                });
            /*********End*****************/

        });
</script>

Styles:

<style>
    body{width:610px;}
    #uploadForm {border-top:#F0F0F0 2px solid;background:#FAF8F8;padding:10px;}
    #uploadForm label {margin:2px; font-size:1em; font-weight:bold;}
    .demoInputBox{padding:5px; border:#F0F0F0 1px solid; border-radius:4px; background-color:#FFF;}
    #progress-bar {background-color: #12CC1A;height:20px;color: #FFFFFF;width:0%;-webkit-transition: width .3s;-moz-transition: width .3s;transition: width .3s;}
    .btnSubmit{background-color:#09f;border:0;padding:10px 40px;color:#FFF;border:#F0F0F0 1px solid; border-radius:4px;}
    #progress-div
    {
        border: 1px solid #0fa015;
        border-radius: 4px;
        margin: -35px 2px 7px 295px;
        padding: 5px 0;
        text-align: center;
        width: 277px;
    }

    #targetLayer{width:100%;text-align:center;}
</style>

To properly achieve this, you'd be better off by checking the mime type.

function get_mime($file) {
  if (function_exists("finfo_file")) {
    $finfo = finfo_open(FILEINFO_MIME_TYPE); // return mime type ala mimetype extension
    $mime = finfo_file($finfo, $file);
    finfo_close($finfo);
    return $mime;
  } else if (function_exists("mime_content_type")) {
    return mime_content_type($file);
  } else if (!stristr(ini_get("disable_functions"), "shell_exec")) {
    // http://stackoverflow.com/a/134930/1593459
    $file = escapeshellarg($file);
    $mime = shell_exec("file -bi " . $file);
    return $mime;
  } else {
    return false;
  }
}
//pass the file name as
echo(get_mime($_FILES['file_name']['tmp_name']));

You'll have to set the enctype attribute of the form to multipart/form-data; then you can access the uploaded file using the HttpRequest.Files collection.

My modern variant:

function blob2file(blobData) {
  const fd = new FormData();
  fd.set('a', blobData);
  return fd.get('a');
}

function uploadfile(ctrl) {
    var validate = validateimg(ctrl);

    if (validate) {
        if (window.FormData !== undefined) {
            ShowLoading();
            var fileUpload = $(ctrl).get(0);
            var files = fileUpload.files;


            var fileData = new FormData();


            for (var i = 0; i < files.length; i++) {
                fileData.append(files[i].name, files[i]);
            }


            fileData.append('username', 'Wishes');

            $.ajax({
                url: 'UploadWishesFiles',
                type: "POST",
                contentType: false,
                processData: false,
                data: fileData,
                success: function(result) {
                    var id = $(ctrl).attr('id');
                    $('#' + id.replace('txt', 'hdn')).val(result);

                    $('#imgPictureEn').attr('src', '../Data/Wishes/' + result).show();

                    HideLoading();
                },
                error: function(err) {
                    alert(err.statusText);
                    HideLoading();
                }
            });
        } else {
            alert("FormData is not supported.");
        }

    }

Here is a function I wrote which returns a more understandable $_FILES array.

function getMultiple_FILES() {
    $_FILE = array();
    foreach($_FILES as $name => $file) {
        foreach($file as $property => $keys) {
            foreach($keys as $key => $value) {
                $_FILE[$name][$key][$property] = $value;
            }
        }
    }
    return $_FILE;
}

I had this same question a while back and came across one of Scott Hanselman's posts:

Implementing HTTP File Upload with ASP.NET MVC including Tests and Mocks

Hope this helps.

An update to @Brandon's answer, generalized to a method

- (NSString*) postToUrl:(NSString*)urlString data:(NSData*)dataToSend withFilename:(NSString*)filename
{
    NSMutableURLRequest *request= [[NSMutableURLRequest alloc] init];
    [request setURL:[NSURL URLWithString:urlString]];
    [request setHTTPMethod:@"POST"];
    NSString *boundary = @"---------------------------14737809831466499882746641449";
    NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];
    [request addValue:contentType forHTTPHeaderField: @"Content-Type"];
    NSMutableData *postbody = [NSMutableData data];
    [postbody appendData:[[NSString stringWithFormat:@"\r\n--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [postbody appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=\"userfile\"; filename=\"%@\"\r\n", filename] dataUsingEncoding:NSUTF8StringEncoding]];
    [postbody appendData:[@"Content-Type: application/octet-stream\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];
    [postbody appendData:[NSData dataWithData:dataToSend]];
    [postbody appendData:[[NSString stringWithFormat:@"\r\n--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];
    [request setHTTPBody:postbody];

    NSError* error;
    NSData *returnData = [NSURLConnection sendSynchronousRequest:request returningResponse:nil error:&error];
    if (returnData) {
        return [[NSString alloc] initWithData:returnData encoding:NSUTF8StringEncoding];
    }
    else {
        return nil;
    }
}

Invoke like so, sending data from a string:

[self postToUrl:@"<#Your url string#>"
           data:[@"<#Your string to send#>" dataUsingEncoding:NSUTF8StringEncoding]
   withFilename:@"<#Filename to post with#>"];

is the ajax uploader refreshing your input element? if so you should consider using .live() method.

 $('#imageFile').live('change', function(){ uploadFile(); });

update:

from jQuery 1.7+ you should use now .on()

 $(parent_element_selector_here or document ).on('change','#imageFile' , function(){ uploadFile(); });

Have a look at this one: http://aquantum-demo.appspot.com/file-upload

It also handles multiple file upload!

You can by using HTML5 File API: http://www.html5rocks.com/en/tutorials/file/dndfiles/

However you should always have a fallback for PHP (or any other backend language you use) for older browsers.

Upload image with form data using NSURLConnection class in Swift 2.2:

    func uploadImage(){
        let imageData = UIImagePNGRepresentation(UIImage(named: "dexter.jpg")!)

        if imageData != nil{
            let str = "https://staging.mywebsite.com/V2.9/uploadfile"
            let request = NSMutableURLRequest(URL: NSURL(string:str)!)
            request.HTTPMethod = "POST"

            let boundary = NSString(format: "---------------------------14737809831466499882746641449")

            let contentType = NSString(format: "multipart/form-data; boundary=%@",boundary)
            request.addValue(contentType as String, forHTTPHeaderField: "Content-Type")

            let body = NSMutableData()

            // append image data to body
            body.appendData(NSString(format: "\r\n--%@\r\n", boundary).dataUsingEncoding(NSUTF8StringEncoding)!)
            body.appendData(NSString(format:"Content-Disposition: form-data; name=\"file\"; filename=\"img.jpg\"\\r\n").dataUsingEncoding(NSUTF8StringEncoding)!)
            body.appendData(NSString(format: "Content-Type: application/octet-stream\r\n\r\n").dataUsingEncoding(NSUTF8StringEncoding)!)
            body.appendData(imageData!)
            body.appendData(NSString(format: "\r\n--%@\r\n", boundary).dataUsingEncoding(NSUTF8StringEncoding)!)

            request.HTTPBody = body

            do {
                let returnData = try NSURLConnection.sendSynchronousRequest(request, returningResponse: nil)
                let returnString = NSString(data: returnData, encoding: NSUTF8StringEncoding)
                print("returnString = \(returnString!)")
            }
            catch let  error as NSError {
                print(error.description)
            }
        }
    }

Note: Always use sendAsynchronousRequest method instead of sendSynchronousRequest for uploading/downloading data to avoid blocking main thread. Here I used sendSynchronousRequest for testing purpose only.

The example below shows the basic usage of the FileReader to read the contents of an uploaded file. Here is a working Plunker of this example.

<!DOCTYPE html>
<html>
  <head>
    <script src="script.js"></script>
  </head>

  <body onload="init()">
    <input id="fileInput" type="file" name="file" />
    <pre id="fileContent"></pre>
  </body>
</html>

script.js

function init(){
  document.getElementById('fileInput').addEventListener('change', handleFileSelect, false);
}

function handleFileSelect(event){
  const reader = new FileReader()
  reader.onload = handleFileLoad;
  reader.readAsText(event.target.files[0])
}

function handleFileLoad(event){
  console.log(event);
  document.getElementById('fileContent').textContent = event.target.result;
}

This code help me in Attachment sending....

$mail->AddAttachment($_FILES['file']['tmp_name'], $_FILES['file']['name']);

Replace your AddAttachment(...) Code with above code

Hy there , in my case i am using asp.net development environment, so i was want to upload those data in asynchronus ajax request , in [webMethod] you can not catch the file uploader since it is not static element , so i had to make a turnover for such solution by fixing the path , than convert the wanted image into bytes to save it in DB .

Here is my javascript function , hope it helps you:

function FixPath(Path)
         {
             var HiddenPath = Path.toString();
             alert(HiddenPath.indexOf("FakePath"));

             if (HiddenPath.indexOf("FakePath") > 1)
             {
                 var UnwantedLength = HiddenPath.indexOf("FakePath") + 7;
                 MainStringLength = HiddenPath.length - UnwantedLength;
                 var thisArray =[];
                 var i = 0;
                 var FinalString= "";
                 while (i < MainStringLength)
                 {
                     thisArray[i] = HiddenPath[UnwantedLength + i + 1];
                     i++;
                 }
                 var j = 0;
                 while (j < MainStringLength-1)
                 {
                     if (thisArray[j] != ",")
                     {
                         FinalString += thisArray[j];
                     }
                     j++;
                 }
                 FinalString = "~" + FinalString;
                 alert(FinalString);
                 return FinalString;
             }
             else
             {
                 return HiddenPath;
             }
         }

here only for testing :

 $(document).ready(function () {
             FixPath("hakounaMatata:/7ekmaTa3mahaLaziz/FakePath/EnsaLmadiLiYghiz");
         });
// this will give you : ~/EnsaLmadiLiYghiz

public function index() {

    $user = $this->session->userdata("username");
    $file_path = "./images/" . $user . '/';

    if (isset($_FILES['multipleUpload'])) {

        if (!is_dir('images/' . $user)) {
            mkdir('./images/' . $user, 0777, TRUE);
        }

        $files = $_FILES;
        $cpt = count($_FILES ['multipleUpload'] ['name']);

        for ($i = 0; $i < $cpt; $i ++) {

            $name = time().$files ['multipleUpload'] ['name'] [$i];
            $_FILES ['multipleUpload'] ['name'] = $name;
            $_FILES ['multipleUpload'] ['type'] = $files ['multipleUpload'] ['type'] [$i];
            $_FILES ['multipleUpload'] ['tmp_name'] = $files ['multipleUpload'] ['tmp_name'] [$i];
            $_FILES ['multipleUpload'] ['error'] = $files ['multipleUpload'] ['error'] [$i];
            $_FILES ['multipleUpload'] ['size'] = $files ['multipleUpload'] ['size'] [$i];

            $this->upload->initialize($this->set_upload_options($file_path));
            if(!($this->upload->do_upload('multipleUpload')) || $files ['multipleUpload'] ['error'] [$i] !=0)
            {
                print_r($this->upload->display_errors());
            }
            else
            {
                $this->load->model('uploadModel','um');
                $this->um->insertRecord($user,$name);
            }
        }
    } else {
        $this->load->view('uploadForm');
    }
}

public function set_upload_options($file_path) {
    // upload an image options
    $config = array();
    $config ['upload_path'] = $file_path;
    $config ['allowed_types'] = 'gif|jpg|png';
    return $config;
}

You can access tempfile in Spring by casting if the class of interface MultipartFile is CommonsMultipartFile.

public File getTempFile(MultipartFile multipartFile)
{
    CommonsMultipartFile commonsMultipartFile = (CommonsMultipartFile) multipartFile;
    FileItem fileItem = commonsMultipartFile.getFileItem();
    DiskFileItem diskFileItem = (DiskFileItem) fileItem;
    String absPath = diskFileItem.getStoreLocation().getAbsolutePath();
    File file = new File(absPath);

    //trick to implicitly save on disk small files (<10240 bytes by default)
    if (!file.exists()) {
        file.createNewFile();
        multipartFile.transferTo(file);
    }

    return file;
}

To get rid of the trick with files less than 10240 bytes maxInMemorySize property can be set to 0 in @Configuration @EnableWebMvc class. After that, all uploaded files will be stored on disk.

@Bean(name = "multipartResolver")
    public CommonsMultipartResolver createMultipartResolver() {
        CommonsMultipartResolver resolver = new CommonsMultipartResolver();
        resolver.setDefaultEncoding("utf-8");
        resolver.setMaxInMemorySize(0);
        return resolver;
    }

Native way to get the mimetype:

For PHP < 5.3 use mime_content_type()
For PHP >= 5.3 use finfo_open() or mime_content_type()

Alternatives to get the MimeType are exif_imagetype and getimagesize, but these rely on having the appropriate libs installed. In addition, they will likely just return image mimetypes, instead of the whole list given in magic.mime.

While mime_content_type is available from PHP 4.3 and is part of the FileInfo extension (which is enabled by default since PHP 5.3, except for Windows platforms, where it must be enabled manually, for details see here).

If you don't want to bother about what is available on your system, just wrap all four functions into a proxy method that delegates the function call to whatever is available, e.g.

function getMimeType($filename)
{
    $mimetype = false;
    if(function_exists('finfo_open')) {
        // open with FileInfo
    } elseif(function_exists('getimagesize')) {
        // open with GD
    } elseif(function_exists('exif_imagetype')) {
       // open with EXIF
    } elseif(function_exists('mime_content_type')) {
       $mimetype = mime_content_type($filename);
    }
    return $mimetype;
}

You can add a new property of type IFormFile to your view model

public class CreatePost
{
   public string ImageCaption { set;get; }
   public string ImageDescription { set;get; }
   public IFormFile MyImage { set; get; }
}

and in your GET action method, we will create an object of this view model and send to the view.

public IActionResult Create()
{
   return View(new CreatePost());
}

Now in your Create view which is strongly typed to our view model, have a form tag which has the enctype attribute set to "multipart/form-data"

@model CreatePost
<form asp-action="Create" enctype="multipart/form-data">   

    <input asp-for="ImageCaption"/>
    <input asp-for="ImageDescription"/>
    <input asp-for="MyImage"/>

    <input type="submit"/>
</form>

And your HttpPost action to handle the form posting

[HttpPost]
public IActionResult Create(CreatePost model)
{
   var img = model.MyImage;
   var imgCaption = model.ImageCaption;

   //Getting file meta data
   var fileName = Path.GetFileName(model.MyImage.FileName);
   var contentType = model.MyImage.ContentType;

   // do something with the above data
   // to do : return something
}

If you want to upload the file to some directory in your app, you should use IHostingEnvironment to get the webroot path. Here is a working sample.

public class HomeController : Controller
{
    private readonly IHostingEnvironment hostingEnvironment;
    public HomeController(IHostingEnvironment environment)
    {
        hostingEnvironment = environment;
    }
    [HttpPost]
    public IActionResult Create(CreatePost model)
    {
        // do other validations on your model as needed
        if (model.MyImage != null)
        {
            var uniqueFileName = GetUniqueFileName(model.MyImage.FileName);
            var uploads = Path.Combine(hostingEnvironment.WebRootPath, "uploads");
            var filePath = Path.Combine(uploads,uniqueFileName);
            model.MyImage.CopyTo(new FileStream(filePath, FileMode.Create)); 

            //to do : Save uniqueFileName  to your db table   
        }
        // to do  : Return something
        return RedirectToAction("Index","Home");
    }
    private string GetUniqueFileName(string fileName)
    {
        fileName = Path.GetFileName(fileName);
        return  Path.GetFileNameWithoutExtension(fileName)
                  + "_" 
                  + Guid.NewGuid().ToString().Substring(0, 4) 
                  + Path.GetExtension(fileName);
    }
}

This will save the file to uploads folder inside wwwwroot directory of your app with a random file name generated using Guids ( to prevent overwriting of files with same name)

Here we are using a very simple GetUniqueName method which will add 4 chars from a guid to the end of the file name to make it somewhat unique. You can update the method to make it more sophisticated as needed.

Should you be storing the full url to the uploaded image in the database ?

No. Do not store the full url to the image in the database. What if tomorrow your business decides to change your company/product name from www.thefacebook.com to www.facebook.com ? Now you have to fix all the urls in the table!

What should you store ?

You should store the unique filename which you generated above(the uniqueFileName varibale we used above) to store the file name. When you want to display the image back, you can use this value (the filename) and build the url to the image.

For example, you can do this in your view.

@{
    var imgFileName = "cats_46df.png";
}
<img src="~/uploads/@imgFileName"  alt="my img"/>

I just hardcoded an image name to imgFileName variable and used that. But you may read the stored file name from your database and set to your view model property and use that. Something like

<img src="~/uploads/@Model.FileName"  alt="my img"/>

Storing the image to table

If you want to save the file as bytearray/varbinary to your database, you may convert the IFormFile object to byte array like this

private byte[] GetByteArrayFromImage(IFormFile file)
{
    using (var target = new MemoryStream())
    {
        file.CopyTo(target);
        return target.ToArray();
    }
}

Now in your http post action method, you can call this method to generate the byte array from IFormFile and use that to save to your table. the below example is trying to save a Post entity object using entity framework.

[HttpPost]
public IActionResult Create(CreatePost model)
{
    //Create an object of your entity class and map property values
    var post=new Post() { ImageCaption = model.ImageCaption };

    if (model.MyImage != null)
    {
       post.Image =  GetByteArrayFromImage(model.MyImage);
    }
    _context.Posts.Add(post);
    _context.SaveChanges();
    return RedirectToAction("Index","Home");
}

The FileUpload.AllowMultiple property in .NET 4.5 and higher will allow you the control to select multiple files.

<asp:FileUpload ID="fileImages" AllowMultiple="true" runat="server" />

.NET 4 and below

 <asp:FileUpload ID="fileImages" Multiple="Multiple" runat="server" />

On the post-back, you can then:

 Dim flImages As HttpFileCollection = Request.Files                   
 For Each key As String In flImages.Keys
    Dim flfile As HttpPostedFile = flImages(key)
    flfile.SaveAs(yourpath & flfile.FileName)
 Next

1. There is no such thing as xhr.file = file;; the file object is not supposed to be attached this way.

2. xhr.send(file) doesn't send the file. You have to use the FormData object to wrap the file into a multipart/form-data post data object:

   var formData = new FormData();
   formData.append("thefile", file);
   xhr.send(formData);
   

After that, the file can be access in $_FILES['thefile'] (if you are using PHP).

Remember, MDC and Mozilla Hack demos are your best friends.

EDIT: The (2) above was incorrect. It does send the file, but it would send it as raw post data. That means you would have to parse it yourself on the server (and it's often not possible, depend on server configuration). Read how to get raw post data in PHP here.

IMPORTANT UPDATE:

Due to use of only application/msword, application/vnd.ms-excel, application/vnd.ms-powerpoint... allows only till 2003 MS products, and not newest. I've found this:

application/msword, application/vnd.openxmlformats-officedocument.wordprocessingml.document, application/vnd.ms-powerpoint, application/vnd.openxmlformats-officedocument.presentationml.slideshow, application/vnd.openxmlformats-officedocument.presentationml.presentation

And that includes the new ones. For other files, you can retrieve the MIME TYPE in your file by this way (pardon the lang)(in MIME list types, there aren't this ones):

You can select & copy the type of content

Pure JS

You can use fetch optionally with await-try-catch

let photo = document.getElementById("image-file").files[0];
let formData = new FormData();
     
formData.append("photo", photo);
fetch('/upload/image', {method: "POST", body: formData});

async function SavePhoto(inp) 
{
    let user = { name:'john', age:34 };
    let formData = new FormData();
    let photo = inp.files[0];      
         
    formData.append("photo", photo);
    formData.append("user", JSON.stringify(user)); 
    
    const ctrl = new AbortController()    // timeout
    setTimeout(() => ctrl.abort(), 5000);
    
    try {
       let r = await fetch('/upload/image', 
         {method: "POST", body: formData, signal: ctrl.signal}); 
       console.log('HTTP response code:',r.status); 
    } catch(e) {
       console.log('Huston we have problem...:', e);
    }
    
}

<input id="image-file" type="file" onchange="SavePhoto(this)" >
<br><br>
Before selecting the file open chrome console > network tab to see the request details.
<br><br>
<small>Because in this example we send request to https://stacksnippets.net/upload/image the response code will be 404 ofcourse...</small>

<br><br>
(in stack overflow snippets there is problem with error handling, however in <a href="https://jsfiddle.net/Lamik/b8ed5x3y/5/">jsfiddle version</a> for 404 errors 4xx/5xx are <a href="https://stackoverflow.com/a/33355142/860099">not throwing</a> at all but we can read response status which contains code)

Old school approach - xhr

let photo = document.getElementById("image-file").files[0];  // file from input
let req = new XMLHttpRequest();
let formData = new FormData();

formData.append("photo", photo);                                
req.open("POST", '/upload/image');
req.send(formData);

function SavePhoto(e) 
{
    let user = { name:'john', age:34 };
    let xhr = new XMLHttpRequest();
    let formData = new FormData();
    let photo = e.files[0];      
    
    formData.append("user", JSON.stringify(user));   
    formData.append("photo", photo);
    
    xhr.onreadystatechange = state => { console.log(xhr.status); } // err handling
    xhr.timeout = 5000;
    xhr.open("POST", '/upload/image'); 
    xhr.send(formData);
}

<input id="image-file" type="file" onchange="SavePhoto(this)" >
<br><br>
Choose file and open chrome console > network tab to see the request details.
<br><br>
<small>Because in this example we send request to https://stacksnippets.net/upload/image the response code will be 404 ofcourse...</small>

<br><br>
(the stack overflow snippets, has some problem with error handling - the xhr.status is zero (instead of 404) which is similar to situation when we run script from file on <a href="https://stackoverflow.com/a/10173639/860099">local disc</a> - so I provide also js fiddle version which shows proper http error code <a href="https://jsfiddle.net/Lamik/k6jtq3uh/2/">here</a>)

SUMMARY

• In server side you can read original file name (and other info) which is automatically included to request by browser in filename formData parameter.
• You do NOT need to set request header Content-Type to multipart/form-data - this will be set automatically by browser.
• Instead of /upload/image you can use full address like http://.../upload/image.
• If you want to send many files in single request use multiple attribute: <input multiple type=... />, and attach all chosen files to formData in similar way (e.g. photo2=...files[2];... formData.append("photo2", photo2);)
• You can include additional data (json) to request e.g. let user = {name:'john', age:34} in this way: formData.append("user", JSON.stringify(user));
• You can set timeout: for fetch using AbortController, for old approach by xhr.timeout= milisec
• This solutions should work on all major browsers.

Easy and simple. You don't need create a new FormData or do an Ajax to send image. You can put dragged files in your input field.

$dropzone.ondrop = function (e) {
    e.preventDefault();
    input.files = e.dataTransfer.files;
}

var $dropzone = document.querySelector('.dropzone');
var input = document.getElementById('file-upload');

$dropzone.ondragover = function (e) { 
  e.preventDefault(); 
  this.classList.add('dragover');
};
$dropzone.ondragleave = function (e) { 
    e.preventDefault();
    this.classList.remove('dragover');
};
$dropzone.ondrop = function (e) {
    e.preventDefault();
    this.classList.remove('dragover');
    input.files = e.dataTransfer.files;
}

.dropzone {
  padding: 10px;
  border: 1px dashed black;
}
.dropzone.dragover {
  background-color: rgba(0, 0, 0, .3);
}

<div class="dropzone">Drop here</div>
<input type="file" id="file-upload" style="display:none;">

require_once 'lib/Zend/Loader/StandardAutoloader.php';
$loader = new Zend\Loader\StandardAutoloader(array('autoregister_zf' => true));

$loader->registerNamespace('Http\PhpEnvironment', 'lib/Zend/Http'); 

// Register with spl_autoload:
$loader->register();

$a = new Zend\Http\PhpEnvironment\Request();
print_r($a->getQuery()->get()); exit;

Older versions of IE do not support FormData ( Full browser support list for FormData is here: https://developer.mozilla.org/en-US/docs/Web/API/FormData).

Either you can use a jquery plugin (For ex, http://malsup.com/jquery/form/#code-samples ) or, you can use IFrame based solution to post multipart form data through ajax: https://developer.mozilla.org/en-US/docs/Learn/HTML/Forms/Sending_forms_through_JavaScript

public static void UploadFileToFtp(string url, string filePath, string username, string password)
{
    var fileName = Path.GetFileName(filePath);
    var request = (FtpWebRequest)WebRequest.Create(url + fileName);

    request.Method = WebRequestMethods.Ftp.UploadFile;
    request.Credentials = new NetworkCredential(username, password);
    request.UsePassive = true;
    request.UseBinary = true;
    request.KeepAlive = false;

    using (var fileStream = File.OpenRead(filePath))
    {
        using (var requestStream = request.GetRequestStream())
        {
            fileStream.CopyTo(requestStream);
            requestStream.Close();
        }
    }

    var response = (FtpWebResponse)request.GetResponse();
    Console.WriteLine("Upload done: {0}", response.StatusDescription);
    response.Close();
}

Here is an extension of Roberto14's answer that does the following:

THIS WILL ONLY ALLOW IMAGES

Checks if FileReader is available and falls back to extension checking if it is not available.

Gives an error alert if not an image

If it is an image it loads a preview

** You should still do server side validation, this is more a convenience for the end user than anything else. But it is handy!

<form id="myform">
    <input type="file" id="myimage" onchange="readURL(this)" />
    <img id="preview" src="#" alt="Image Preview" />
</form>

<script>
function readURL(input) {
    if (window.FileReader && window.Blob) {
        if (input.files && input.files[0]) {
            var reader = new FileReader();
            reader.onload = function (e) {
                var img = new Image();
                img.onload = function() {
                    var preview = document.getElementById('preview');
                    preview.src = e.target.result;
                    };
                img.onerror = function() { 
                    alert('error');
                    input.value = '';
                    };
                img.src = e.target.result;
                }
            reader.readAsDataURL(input.files[0]);
            }
        }
    else {
        var ext = input.value.split('.');
        ext = ext[ext.length-1].toLowerCase();      
        var arrayExtensions = ['jpg' , 'jpeg', 'png', 'bmp', 'gif'];
        if (arrayExtensions.lastIndexOf(ext) == -1) {
            alert('error');
            input.value = '';
            }
        else {
            var preview = document.getElementById('preview');
            preview.setAttribute('alt', 'Browser does not support preview.');
            }
        }
    }
</script>

If upload_file is meant to be the file, use:

files = {'upload_file': open('file.txt','rb')}
values = {'DB': 'photcat', 'OUT': 'csv', 'SHORT': 'short'}

r = requests.post(url, files=files, data=values)

and requests will send a multi-part form POST body with the upload_file field set to the contents of the file.txt file.

The filename will be included in the mime header for the specific field:

>>> import requests
>>> open('file.txt', 'wb')  # create an empty demo file
<_io.BufferedWriter name='file.txt'>
>>> files = {'upload_file': open('file.txt', 'rb')}
>>> print(requests.Request('POST', 'http://example.com', files=files).prepare().body.decode('ascii'))
--c226ce13d09842658ffbd31e0563c6bd
Content-Disposition: form-data; name="upload_file"; filename="file.txt"


--c226ce13d09842658ffbd31e0563c6bd--

Note the filename="file.txt" parameter.

You can use a tuple for the files mapping value, with between 2 and 4 elements, if you need more control. The first element is the filename, followed by the contents, and an optional content-type header value and an optional mapping of additional headers:

files = {'upload_file': ('foobar.txt', open('file.txt','rb'), 'text/x-spam')}

This sets an alternative filename and content type, leaving out the optional headers.

If you are meaning the whole POST body to be taken from a file (with no other fields specified), then don't use the files parameter, just post the file directly as data. You then may want to set a Content-Type header too, as none will be set otherwise. See Python requests - POST data from a file.

Define in html:

<input type="hidden" name="image" id="image"/>

In JS:

ajax.jsonRpc("/consulta/dni", 'call', {'document_number': document_number})
    .then(function (data) {
        if (data.error){
            ...;
        }
        else {
            $('#image').val(data.image);
        }
    })

After:

<input type="hidden" name="image" id="image" value="/9j/4AAQSkZJRgABAgAAAQABAAD/2wBDAAgGBgcGBQgHBwcJCQgKDBQNDAsLDBkSEw8U..."/>
<button type="submit">Submit</button>

Something like this could work

input(type='file', name='videoFile', value = "Choose a video please")

EDIT (02 Jan 2012):

I created a small open source Android Library Project that streamlines this process, while also providing a built-in file explorer (in case the user does not have one present). It's extremely simple to use, requiring only a few lines of code.

You can find it at GitHub: aFileChooser.

ORIGINAL

If you want the user to be able to choose any file in the system, you will need to include your own file manager, or advise the user to download one. I believe the best you can do is look for "openable" content in an Intent.createChooser() like this:

private static final int FILE_SELECT_CODE = 0;

private void showFileChooser() {
    Intent intent = new Intent(Intent.ACTION_GET_CONTENT); 
    intent.setType("*/*"); 
    intent.addCategory(Intent.CATEGORY_OPENABLE);

    try {
        startActivityForResult(
                Intent.createChooser(intent, "Select a File to Upload"),
                FILE_SELECT_CODE);
    } catch (android.content.ActivityNotFoundException ex) {
        // Potentially direct the user to the Market with a Dialog
        Toast.makeText(this, "Please install a File Manager.", 
                Toast.LENGTH_SHORT).show();
    }
}

You would then listen for the selected file's Uri in onActivityResult() like so:

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    switch (requestCode) {
        case FILE_SELECT_CODE:
        if (resultCode == RESULT_OK) {
            // Get the Uri of the selected file 
            Uri uri = data.getData();
            Log.d(TAG, "File Uri: " + uri.toString());
            // Get the path
            String path = FileUtils.getPath(this, uri);
            Log.d(TAG, "File Path: " + path);
            // Get the file instance
            // File file = new File(path);
            // Initiate the upload
        }
        break;
    }
    super.onActivityResult(requestCode, resultCode, data);
}

The getPath() method in my FileUtils.java is:

public static String getPath(Context context, Uri uri) throws URISyntaxException {
    if ("content".equalsIgnoreCase(uri.getScheme())) {
        String[] projection = { "_data" };
        Cursor cursor = null;

        try {
            cursor = context.getContentResolver().query(uri, projection, null, null, null);
            int column_index = cursor.getColumnIndexOrThrow("_data");
            if (cursor.moveToFirst()) {
                return cursor.getString(column_index);
            }
        } catch (Exception e) {
            // Eat it
        }
    }
    else if ("file".equalsIgnoreCase(uri.getScheme())) {
        return uri.getPath();
    }

    return null;
} 

Well this is embarrassing... I found the solution I was looking for and it couldn't be simpler. I used the following code to get the desired result. Hope this helps someone in the future. Thanks everyone for your help.

<input id="fileSelect" type="file" accept=".csv, application/vnd.openxmlformats-officedocument.spreadsheetml.sheet, application/vnd.ms-excel" />  

Valid Accept Types:

For CSV files (.csv), use:

<input type="file" accept=".csv" />

For Excel Files 97-2003 (.xls), use:

<input type="file" accept="application/vnd.ms-excel" />

For Excel Files 2007+ (.xlsx), use:

<input type="file" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet" />

For Text Files (.txt) use:

<input type="file" accept="text/plain" />

For Image Files (.png/.jpg/etc), use:

<input type="file" accept="image/*" />

For HTML Files (.htm,.html), use:

<input type="file" accept="text/html" />

For Video Files (.avi, .mpg, .mpeg, .mp4), use:

<input type="file" accept="video/*" />

For Audio Files (.mp3, .wav, etc), use:

<input type="file" accept="audio/*" />

For PDF Files, use:

<input type="file" accept=".pdf" /> 

DEMO:
http://jsfiddle.net/dirtyd77/LzLcZ/144/

NOTE:

If you are trying to display Excel CSV files (.csv), do NOT use:

• text/csv
• application/csv
• text/comma-separated-values (works in Opera only).

If you are trying to display a particular file type (for example, a WAV or PDF), then this will almost always work...

 <input type="file" accept=".FILETYPE" />

Clarifying it. Model:

public class ContactUsModel
{
    public string FirstName { get; set; }             
    public string LastName { get; set; }              
    public string Email { get; set; }                 
    public string Phone { get; set; }                 
    public HttpPostedFileBase attachment { get; set; }

Post Action

public virtual ActionResult ContactUs(ContactUsModel Model)
{
 if (Model.attachment.HasFile())
 {
   //save the file

   //Send it as an attachment 
    Attachment messageAttachment = new Attachment(Model.attachment.InputStream,       Model.attachment.FileName);
  }
}

Finally the Extension method for checking the hasFile

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;

namespace AtlanticCMS.Web.Common
{
     public static class ExtensionMethods 
     {
         public static bool HasFile(this HttpPostedFileBase file)
         {
             return file != null && file.ContentLength > 0;
         }        
     }
 }

Something that your code doesn't account for is displaying multiple errors. As you have noted above it is possible for the user to upload a file >2MB of the wrong type, but your code can only report one of the issues. Try something like:

if(isset($_FILES['uploaded_file'])) {
    $errors     = array();
    $maxsize    = 2097152;
    $acceptable = array(
        'application/pdf',
        'image/jpeg',
        'image/jpg',
        'image/gif',
        'image/png'
    );

    if(($_FILES['uploaded_file']['size'] >= $maxsize) || ($_FILES["uploaded_file"]["size"] == 0)) {
        $errors[] = 'File too large. File must be less than 2 megabytes.';
    }

    if((!in_array($_FILES['uploaded_file']['type'], $acceptable)) && (!empty($_FILES["uploaded_file"]["type"]))) {
        $errors[] = 'Invalid file type. Only PDF, JPG, GIF and PNG types are accepted.';
    }

    if(count($errors) === 0) {
        move_uploaded_file($_FILES['uploaded_file']['tmpname'], '/store/to/location.file');
    } else {
        foreach($errors as $error) {
            echo '<script>alert("'.$error.'");</script>';
        }

        die(); //Ensure no more processing is done
    }
}

Look into the docs for move_uploaded_file() (it's called move not store) for more.

Here is how you could do it with Java 11's java.net.http package:

    var fileA = new File("a.pdf");
    var fileB = new File("b.pdf");

    var mimeMultipartData = MimeMultipartData.newBuilder()
            .withCharset(StandardCharsets.UTF_8)
            .addFile("file1", fileA.toPath(), Files.probeContentType(fileA.toPath()))
            .addFile("file2", fileB.toPath(), Files.probeContentType(fileB.toPath()))
            .build();

    var request = HttpRequest.newBuilder()
            .header("Content-Type", mimeMultipartData.getContentType())
            .POST(mimeMultipartData.getBodyPublisher())
            .uri(URI.create("http://somehost/upload"))
            .build();

    var httpClient = HttpClient.newBuilder().build();
    var response = httpClient.send(request, BodyHandlers.ofString());

With the following MimeMultipartData:

public class MimeMultipartData {

    public static class Builder {

        private String boundary;
        private Charset charset = StandardCharsets.UTF_8;
        private List<MimedFile> files = new ArrayList<MimedFile>();
        private Map<String, String> texts = new LinkedHashMap<>();

        private Builder() {
            this.boundary = new BigInteger(128, new Random()).toString();
        }

        public Builder withCharset(Charset charset) {
            this.charset = charset;
            return this;
        }

        public Builder withBoundary(String boundary) {
            this.boundary = boundary;
            return this;
        }

        public Builder addFile(String name, Path path, String mimeType) {
            this.files.add(new MimedFile(name, path, mimeType));
            return this;
        }

        public Builder addText(String name, String text) {
            texts.put(name, text);
            return this;
        }

        public MimeMultipartData build() throws IOException {
            MimeMultipartData mimeMultipartData = new MimeMultipartData();
            mimeMultipartData.boundary = boundary;

            var newline = "\r\n".getBytes(charset);
            var byteArrayOutputStream = new ByteArrayOutputStream();
            for (var f : files) {
                byteArrayOutputStream.write(("--" + boundary).getBytes(charset)); 
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(("Content-Disposition: form-data; name=\"" + f.name + "\"; filename=\"" + f.path.getFileName() + "\"").getBytes(charset));
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(("Content-Type: " + f.mimeType).getBytes(charset));
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(Files.readAllBytes(f.path));
                byteArrayOutputStream.write(newline);
            }
            for (var entry: texts.entrySet()) {
                byteArrayOutputStream.write(("--" + boundary).getBytes(charset));
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(("Content-Disposition: form-data; name=\"" + entry.getKey() + "\"").getBytes(charset));
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(newline);
                byteArrayOutputStream.write(entry.getValue().getBytes(charset));
                byteArrayOutputStream.write(newline);
            }
            byteArrayOutputStream.write(("--" + boundary + "--").getBytes(charset));

            mimeMultipartData.bodyPublisher = BodyPublishers.ofByteArray(byteArrayOutputStream.toByteArray());
            return mimeMultipartData;
        }

        public class MimedFile {

            public final String name;
            public final Path path;
            public final String mimeType;

            public MimedFile(String name, Path path, String mimeType) {
                this.name = name;
                this.path = path;
                this.mimeType = mimeType;
            }
        }
    }

    private String boundary;
    private BodyPublisher bodyPublisher;

    private MimeMultipartData() {
    }

    public static Builder newBuilder() {
        return new Builder();
    }

    public BodyPublisher getBodyPublisher() throws IOException {
        return bodyPublisher;
    }

    public String getContentType() {
        return "multipart/form-data; boundary=" + boundary;
    }

}

Just use

File.Copy(filepath, "\\\\192.168.1.28\\Files");

A windows fileshare exposed via a UNC path is treated as part of the file system, and has nothing to do with the web.

The credentials used will be that of the ASP.NET worker process, or any impersonation you've enabled. If you can tweak those to get it right, this can be done.

You may run into problems because you are using the IP address instead of the server name (windows trust settings prevent leaving the domain - by using IP you are hiding any domain details). If at all possible, use the server name!

If this is not on the same windows domain, and you are trying to use a different domain account, you will need to specify the username as "[domain_or_machine]\[username]"

If you need to specify explicit credentials, you'll need to look into coding an impersonation solution.

Another solution with a few lines

function checkFile(i){
  i = i.substr(i.length - 4, i.length).toLowerCase();
  i = i.replace('.','');
  switch(i){
    case 'jpg':
    case 'jpeg':
    case 'png':
    case 'gif':
      // do OK stuff
      break;
    default:
      // do error stuff
      break;
  }
}

I find this, simple and efficient:

const express = require('express');
const fileUpload = require('express-fileupload');
const app = express();

// default options
app.use(fileUpload());

app.post('/upload', function(req, res) {
  if (!req.files || Object.keys(req.files).length === 0) {
    return res.status(400).send('No files were uploaded.');
  }

  // The name of the input field (i.e. "sampleFile") is used to retrieve the uploaded file
  let sampleFile = req.files.sampleFile;

  // Use the mv() method to place the file somewhere on your server
  sampleFile.mv('/somewhere/on/your/server/filename.jpg', function(err) {
    if (err)
      return res.status(500).send(err);

    res.send('File uploaded!');
  });
});

express-fileupload

I don't believe AJAX can handle file uploads but this can be achieved with libraries that leverage flash. Another advantage of the flash implementation is the ability to do multiple files at once (like gmail).

SWFUpload is a good start : http://www.swfupload.org/documentation

jQuery and some of the other libraries have plugins that leverage SWFUpload. On my last project we used SWFUpload and Java without a problem.

Also helpful and worth looking into is Apache's FileUpload : http://commons.apache.org/fileupload/index.html

FileReader API with jQuery, simple example.

( function ( $ ) {_x000D_
 // Add click event handler to button_x000D_
 $( '#load-file' ).click( function () {_x000D_
  if ( ! window.FileReader ) {_x000D_
   return alert( 'FileReader API is not supported by your browser.' );_x000D_
  }_x000D_
  var $i = $( '#file' ), // Put file input ID here_x000D_
   input = $i[0]; // Getting the element from jQuery_x000D_
  if ( input.files && input.files[0] ) {_x000D_
   file = input.files[0]; // The file_x000D_
   fr = new FileReader(); // FileReader instance_x000D_
   fr.onload = function () {_x000D_
    // Do stuff on onload, use fr.result for contents of file_x000D_
    $( '#file-content' ).append( $( '<div/>' ).html( fr.result ) )_x000D_
   };_x000D_
   //fr.readAsText( file );_x000D_
   fr.readAsDataURL( file );_x000D_
  } else {_x000D_
   // Handle errors here_x000D_
   alert( "File not selected or browser incompatible." )_x000D_
  }_x000D_
 } );_x000D_
} )( jQuery );

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>_x000D_
<input type="file" id="file" />_x000D_
<input type='button' id='load-file' value='Load'>_x000D_
<div id="file-content"></div>

To read as text... uncomment //fr.readAsText(file); line and comment fr.readAsDataURL(file);

There's an element in web.config to configure the max size of the uploaded file:

<httpRuntime 
    maxRequestLength="1048576"
  />

I also struggled with this but got it working once I figured out how the paths work in UploadHandler.php: upload_dir and upload_url are about the only settings to look at to get it working. Also check your server error logs for debugging information.

using System;
using System.Data;
using System.Data.SqlClient;

namespace InsertingData
{
    class sqlinsertdata
    {
        static void Main(string[] args)
        {
            try
            { 
            SqlConnection conn = new SqlConnection("Data source=USER-PC; Database=Emp123;User Id=sa;Password=sa123");
            conn.Open();
                SqlCommand cmd = new SqlCommand("insert into <Table Name>values(1,'nagendra',10000);",conn);
                cmd.ExecuteNonQuery();
                Console.WriteLine("Inserting Data Successfully");
                conn.Close();
        }
            catch(Exception e)
            {
                Console.WriteLine("Exception Occre while creating table:" + e.Message + "\t"  + e.GetType());
            }
            Console.ReadKey();

    }
    }
}

You can do it now with HTML5

In essence you use the multiple attribute on the file input.

<input type='file' multiple>

Use chown to change ownership and chmod to change rights.

use the -R option to apply the rights for all files inside of a directory too.

Note that both these commands just work for directories too. The -R option makes them also change the permissions for all files and directories inside of the directory.

For example

sudo chown -R username:group directory

will change ownership (both user and group) of all files and directories inside of directory and directory itself.

sudo chown username:group directory

will only change the permission of the folder directory but will leave the files and folders inside the directory alone.

you need to use sudo to change the ownership from root to yourself.

Edit:

Note that if you use chown user: file (Note the left-out group), it will use the default group for that user.

Also You can change the group ownership of a file or directory with the command:

chgrp group_name file/directory_name

You must be a member of the group to which you are changing ownership to.

You can find group of file as follows

# ls -l file
-rw-r--r-- 1 root family 0 2012-05-22 20:03 file

# chown sujit:friends file

User 500 is just a normal user. Typically user 500 was the first user on the system, recent changes (to /etc/login.defs) has altered the minimum user id to 1000 in many distributions, so typically 1000 is now the first (non root) user.

What you may be seeing is a system which has been upgraded from the old state to the new state and still has some processes knocking about on uid 500. You can likely change it by first checking if your distro should indeed now use 1000, and if so alter the login.defs file yourself, the renumber the user account in /etc/passwd and chown/chgrp all their files, usually in /home/, then reboot.

But in answer to your question, no, you should not really be worried about this in all likelihood. It'll be showing as "500" instead of a username because o user in /etc/passwd has a uid set of 500, that's all.

Also you can show your current numbers using id i'm willing to bet it comes back as 1000 for you.

It's entirely possible in browser-side javascript.

The easy way:

The readAsDataURL() method might already encode it as base64 for you. You'll probably need to strip out the beginning stuff (up to the first ,), but that's no biggie. This would take all the fun out though.

The hard way:

If you want to try it the hard way (or it doesn't work), look at readAsArrayBuffer(). This will give you a Uint8Array and you can use the method specified. This is probably only useful if you want to mess with the data itself, such as manipulating image data or doing other voodoo magic before you upload.

There are two methods:

• Convert to string and use the built-in btoa or similar
  • I haven't tested all cases, but works for me- just get the char-codes
• Convert directly from a Uint8Array to base64

I recently implemented tar in the browser. As part of that process, I made my own direct Uint8Array->base64 implementation. I don't think you'll need that, but it's here if you want to take a look; it's pretty neat.

What I do now:

The code for converting to string from a Uint8Array is pretty simple (where buf is a Uint8Array):

function uint8ToString(buf) {
    var i, length, out = '';
    for (i = 0, length = buf.length; i < length; i += 1) {
        out += String.fromCharCode(buf[i]);
    }
    return out;
}

From there, just do:

var base64 = btoa(uint8ToString(yourUint8Array));

Base64 will now be a base64-encoded string, and it should upload just peachy. Try this if you want to double check before pushing:

window.open("data:application/octet-stream;base64," + base64);

This will download it as a file.

Other info:

To get the data as a Uint8Array, look at the MDN docs:

• https://developer.mozilla.org/en/DOM/FileReader

You can use:

System.Text.Encoding.ASCII.GetString(buf);

But sometimes you will get a weird number instead of the string you want. In that case, your original string may have some hexadecimal character when you see it. If it's the case, you may want to try this:

System.Text.Encoding.UTF8.GetString(buf);

Or as a last resort:

System.Text.Encoding.Default.GetString(bytearray);

It's only supposed to send the information to the server. The reason that it must preceed the file field is that it has to come before the file payload in the request for the server to be able to use it to check the size of the upload.

How the value is used on the server depends on what you use to take care of the upload. The code is supposedly intended for a specific upload component that specifically looks for that value.

It seems that the built in upload support in PHP is one to use this field value.

Try this small lib, works with Angular 5.0.0

• https://www.npmjs.com/package/ng2-file-upload

Quickstart example with ng2-file-upload 1.3.0:

User clicks custom button, which triggers upload dialog from hidden input type="file" , uploading started automatically after selecting single file.

app.module.ts:

import {FileUploadModule} from "ng2-file-upload";

your.component.html:

...
  <button mat-button onclick="document.getElementById('myFileInputField').click()" >
    Select and upload file
  </button>
  <input type="file" id="myFileInputField" ng2FileSelect [uploader]="uploader" style="display:none">
...

your.component.ts:

import {FileUploader} from 'ng2-file-upload';
...    
uploader: FileUploader;
...
constructor() {
   this.uploader = new FileUploader({url: "/your-api/some-endpoint"});
   this.uploader.onErrorItem = item => {
       console.error("Failed to upload");
       this.clearUploadField();
   };
   this.uploader.onCompleteItem = (item, response) => {
       console.info("Successfully uploaded");
       this.clearUploadField();

       // (Optional) Parsing of response
       let responseObject = JSON.parse(response) as MyCustomClass;

   };

   // Asks uploader to start upload file automatically after selecting file
  this.uploader.onAfterAddingFile = fileItem => this.uploader.uploadAll();
}

private clearUploadField(): void {
    (<HTMLInputElement>window.document.getElementById('myFileInputField'))
    .value = "";
}

Alternative lib, works in Angular 4.2.4, but requires some workarounds to adopt to Angular 5.0.0

• https://www.npmjs.com/package/angular2-http-file-upload

I had same issue with primefaces 5.3 and I went through all the points described by BalusC with no result. I followed his advice of debugging FileUploadRenderer#decode() and I discovered that my web.xml was unproperly set

<context-param>
  <param-name>primefaces.UPLOADER</param-name>
  <param-value>auto|native|commons</param-value>
</context-param>

The param-value must be 1 of these 3 values but not all of them!! The whole context-param section can be removed and the default will be auto

Here is a more reusable way, assuming you use jQuery

Library function (does not require jQuery):

function stringEndsWithValidExtension(stringToCheck, acceptableExtensionsArray, required) {
    if (required == false && stringToCheck.length == 0) { return true; }
    for (var i = 0; i < acceptableExtensionsArray.length; i++) {
        if (stringToCheck.toLowerCase().endsWith(acceptableExtensionsArray[i].toLowerCase())) { return true; }
    }
    return false;
}


String.prototype.startsWith = function (str) { return (this.match("^" + str) == str) }

String.prototype.endsWith = function (str) { return (this.match(str + "$") == str) }

Page function (requires jQuery (barely)):

$("[id*='btnSaveForm']").click(function () {
    if (!stringEndsWithValidExtension($("[id*='fileUploader']").val(), [".png", ".jpeg", ".jpg", ".bmp"], false)) {
        alert("Photo only allows file types of PNG, JPG and BMP.");
        return false;
    }
    return true;
});

I was also facing the same issue for 2 days but now finally it is working.

Step 1 : create a php script file with this content.

<?php 
 echo 'username : ' . `whoami`;
 phpinfo();
?>

note down the username. note down open_basedir under core section of phpinfo. also note down upload_tmp_dir under core section of phpinfo.

Here two things are important , see if upload_tmp_dir value is inside one of open_basedir directory. ( php can not upload files outside open_basedir directory ).

Step 2 : Open terminal with root access and go to upload_tmp_dir location. ( In my case "/home/admin/tmp". )

  => cd /home/admin/tmp

But it was not found in my case so I created it and added chown for php user which I get in step 1 ( In my case "admin" ).

  => mkdir /home/admin/tmp
  => chown admin /home/admin/tmp

That is all you have to do to fix the file upload problem.

You could use JavaScript and trigger the hidden file input when the button input has been clicked.

http://jsfiddle.net/gregorypratt/dhyzV/ - simple

http://jsfiddle.net/gregorypratt/dhyzV/1/ - fancier with a little JQuery

Or, you could style a div directly over the file input and set pointer-events in CSS to none to allow the click events to pass through to the file input that is "behind" the fancy div. This only works in certain browsers though; http://caniuse.com/pointer-events

I use one main Javascript function that I had found at Mozilla Developer Network site https://developer.mozilla.org/en-US/docs/Using_files_from_web_applications, along with another function with AJAX and changed according to my needs. It receives a document element id regarding the place in my html code where I want to write the file size.

<Javascript>

function updateSize(elementId) {
    var nBytes = 0,
    oFiles = document.getElementById(elementId).files,
    nFiles = oFiles.length;

    for (var nFileId = 0; nFileId < nFiles; nFileId++) {
        nBytes += oFiles[nFileId].size;
    }
    var sOutput = nBytes + " bytes";
    // optional code for multiples approximation
    for (var aMultiples = ["K", "M", "G", "T", "P", "E", "Z", "Y"], nMultiple = 0, nApprox = nBytes / 1024; nApprox > 1; nApprox /= 1024, nMultiple++) {
        sOutput = " (" + nApprox.toFixed(3) + aMultiples[nMultiple] + ")";
    }

    return sOutput;
}
</Javascript>

<HTML>
<input type="file" id="inputFileUpload" onchange="uploadFuncWithAJAX(this.value);" size="25">
</HTML>

<Javascript with XMLHttpRequest>
document.getElementById('spanFileSizeText').innerHTML=updateSize("inputFileUpload");
</XMLHttpRequest>

Cheers

I can't add a comment above as I do not have enough reputation, but the above answer was nearly perfect for me, except I had to add

type: "POST"

to the .ajax call. I was scratching my head for a few minutes trying to figure out what I had done wrong, that's all it needed and works a treat. So this is the whole snippet:

Full credit to the answer above me, this is just a small tweak to that. This is just in case anyone else gets stuck and can't see the obvious.

  $.ajax({
    url: 'Your url here',
    data: formData,
    type: "POST", //ADDED THIS LINE
    // THIS MUST BE DONE FOR FILE UPLOADING
    contentType: false,
    processData: false,
    // ... Other options like success and etc
})

Your part:

$result = mysql_connect("localhost", "******", "*****") or die ("Could not save image name

Error: " . mysql_error());

mysql_select_db("project") or die("Could not select database");
mysql_query("INSERT into dbProfiles (photo) VALUES('".$_FILES['filep']['name']."')");
if($result) { echo "Image name saved into database

";

Doesn't make much sense, your connection shouldn't be named $result but that is a naming issue not a coding one.

What is a coding issue is if($result), your saying if you can connect to the database regardless of the insert query failing or succeeding you will output "Image saved into database".

Try adding do

$realresult = mysql_query("INSERT into dbProfiles (photo) VALUES('".$_FILES['filep']['name']."')");

and change the if($result) to $realresult

I suspect your query is failing, perhaps you have additional columns or something?

Try copy/pasting your query, replacing the ".$_FILES['filep']['name']." with test and running it in your query browser and see if it goes in.

Here is my approach API (i use example) - as you can see, you I don't use any file_id (uploaded file identifier to the server) in API:

1. Create photo object on server:

    POST: /projects/{project_id}/photos   
    body: { name: "some_schema.jpg", comment: "blah"}
    response: photo_id
   

2. Upload file (note that file is in singular form because it is only one per photo):

    POST: /projects/{project_id}/photos/{photo_id}/file
    body: file to upload
    response: -
   

And then for instance:

3. Read photos list

    GET: /projects/{project_id}/photos
    response: [ photo, photo, photo, ... ] (array of objects)
   

4. Read some photo details

    GET: /projects/{project_id}/photos/{photo_id}
    response: { id: 666, name: 'some_schema.jpg', comment:'blah'} (photo object)
   

5. Read photo file

    GET: /projects/{project_id}/photos/{photo_id}/file
    response: file content
   

So the conclusion is that, first you create an object (photo) by POST, and then you send second request with the file (again POST). To not have problems with CACHE in this approach we assume that we can only delete old photos and add new - no update binary photo files (because new binary file is in fact... NEW photo). However if you need to be able to update binary files and cache them, then in point 4 return also fileId and change 5 to GET: /projects/{project_id}/photos/{photo_id}/files/{fileId}.

From the documentation:

It is necessary to keep in mind that the browsers do not know how to correctly show this error.

I suspect this is what's happening, if you inspect the HTTP to-and-fro using tools such as Firebug or Live HTTP Headers (both Firefox extensions) you'll be able to see what's really going on.

This code works fine, but the only issue is if the file format is other than specified options, it shows an alert message but it displays the file name while it should be neglecting it.

$('#ff2').change(
                function () {
                    var fileExtension = ['jpeg', 'jpg', 'pdf'];
                    if ($.inArray($(this).val().split('.').pop().toLowerCase(), fileExtension) == -1) {
                        alert("Only '.jpeg','.jpg','.pdf' formats are allowed.");
                        return false; }
});

Looking onto this issue Github - Request/Upload progress handling via @angular/http, angular2 http does not support file upload yet.

For very basic file upload I created such service function as a workaround (using ???????'s answer):

  uploadFile(file:File):Promise<MyEntity> {
    return new Promise((resolve, reject) => {

        let xhr:XMLHttpRequest = new XMLHttpRequest();
        xhr.onreadystatechange = () => {
            if (xhr.readyState === 4) {
                if (xhr.status === 200) {
                    resolve(<MyEntity>JSON.parse(xhr.response));
                } else {
                    reject(xhr.response);
                }
            }
        };

        xhr.open('POST', this.getServiceUrl(), true);

        let formData = new FormData();
        formData.append("file", file, file.name);
        xhr.send(formData);
    });
}

Store it anywhere in an accessible location except of the IDE's project folder aka the server's deploy folder, for reasons mentioned in the answer to Uploaded image only available after refreshing the page:

1. Changes in the IDE's project folder does not immediately get reflected in the server's work folder. There's kind of a background job in the IDE which takes care that the server's work folder get synced with last updates (this is in IDE terms called "publishing"). This is the main cause of the problem you're seeing.

2. In real world code there are circumstances where storing uploaded files in the webapp's deploy folder will not work at all. Some servers do (either by default or by configuration) not expand the deployed WAR file into the local disk file system, but instead fully in the memory. You can't create new files in the memory without basically editing the deployed WAR file and redeploying it.

3. Even when the server expands the deployed WAR file into the local disk file system, all newly created files will get lost on a redeploy or even a simple restart, simply because those new files are not part of the original WAR file.

It really doesn't matter to me or anyone else where exactly on the local disk file system it will be saved, as long as you do not ever use getRealPath() method. Using that method is in any case alarming.

The path to the storage location can in turn be definied in many ways. You have to do it all by yourself. Perhaps this is where your confusion is caused because you somehow expected that the server does that all automagically. Please note that @MultipartConfig(location) does not specify the final upload destination, but the temporary storage location for the case file size exceeds memory storage threshold.

So, the path to the final storage location can be definied in either of the following ways:

• Hardcoded:

    File uploads = new File("/path/to/uploads");
  

• Environment variable via SET UPLOAD_LOCATION=/path/to/uploads:

    File uploads = new File(System.getenv("UPLOAD_LOCATION"));
  

• VM argument during server startup via -Dupload.location="/path/to/uploads":

    File uploads = new File(System.getProperty("upload.location"));
  

• *.properties file entry as upload.location=/path/to/uploads:

    File uploads = new File(properties.getProperty("upload.location"));
  

• web.xml <context-param> with name upload.location and value /path/to/uploads:

    File uploads = new File(getServletContext().getInitParameter("upload.location"));
  

• If any, use the server-provided location, e.g. in JBoss AS/WildFly:

    File uploads = new File(System.getProperty("jboss.server.data.dir"), "uploads");
  

Either way, you can easily reference and save the file as follows:

File file = new File(uploads, "somefilename.ext");

try (InputStream input = part.getInputStream()) {
    Files.copy(input, file.toPath());
}

Or, when you want to autogenerate an unique file name to prevent users from overwriting existing files with coincidentally the same name:

File file = File.createTempFile("somefilename-", ".ext", uploads);

try (InputStream input = part.getInputStream()) {
    Files.copy(input, file.toPath(), StandardCopyOption.REPLACE_EXISTING);
}

How to obtain part in JSP/Servlet is answered in How to upload files to server using JSP/Servlet? and how to obtain part in JSF is answered in How to upload file using JSF 2.2 <h:inputFile>? Where is the saved File?

Note: do not use Part#write() as it interprets the path relative to the temporary storage location defined in @MultipartConfig(location).

See also:

• How to save uploaded file in JSF (JSF-targeted, but the principle is pretty much the same)
• Simplest way to serve static data from outside the application server in a Java web application (in case you want to serve it back)
• How to save generated file temporarily in servlet based web application

Add this to an htaccess file (and see edit notes added below):

<IfModule mod_php5.c>
   php_value post_max_size 200M
   php_value upload_max_filesize 200M
   php_value memory_limit 300M
   php_value max_execution_time 259200
   php_value max_input_time 259200
   php_value session.gc_maxlifetime 1200
</IfModule>

Additional resources and information:

• https://www.php.net/manual/en/info.configuration.php

• https://www.looklinux.com/how-to-set-php-maximum-execution-time-in-an-htaccess-file/

2021 EDIT:

As PHP and Apache evolve and grow, I think it is important for me to take a moment to mention a few things to consider and possible "gotchas" to consider:

• PHP can be run as a module or as CGI. It is not recommended to run as CGI as it creates a lot of opportunities for attack vectors [Read More]. Running as a module (the safer option) will trigger the settings to be used if the specific module from <IfModule is loaded.
• The answer indicates to write mod_php5.c in the first line. If you are using PHP 7, you would replace that with mod_php7.c.
• Sometimes after you make changes to your .htaccess file, restarting Apache or NGINX will not work. The most common reason for this is you are running PHP-FPM, which runs as a separate process. You need to restart that as well.
• Remember these are settings that are normally defined in your php.ini config file(s). This method is usually only useful in the event your hosting provider does not give you access to change those files. In circumstances where you can edit the PHP configuration, it is recommended that you apply these settings there.
• Finally, it's important to note that not all php.ini settings can be configured via an .htaccess file. A file list of php.ini directives can be found here, and the only ones you can change are the ones in the changeable column with the modes PHP_INI_ALL or PHP_INI_PERDIR.

Thanks to @Eswar. This code worked perfectly for me. I want to add certain things to the solution :

I was getting error : java.io.IOException: RESTEASY007550: Unable to get boundary for multipart

In order to solve this error, you should remove the "Content-Type" "multipart/form-data". It solved my problem.

You need to create a git repo locally, add your project files to that repo, commit them to the local repo, and then sync that repo to your repo on github. You can find good instructions on how to do the latter bit on github, and the former should be easy to do with the software you've downloaded.

Multiple Image upload using php full source code and preview available at the below Link.
Sample code:

if (isset($_POST['submit'])) {
    $j = 0; //Variable for indexing uploaded image 

    $target_path = "uploads/"; //Declaring Path for uploaded images
    for ($i = 0; $i < count($_FILES['file']['name']); $i++) { //loop to get individual element from the array

        $validextensions = array("jpeg", "jpg", "png"); //Extensions which are allowed
        $ext = explode('.', basename($_FILES['file']['name'][$i])); //explode file name from dot(.) 
        $file_extension = end($ext); //store extensions in the variable

        $target_path = $target_path.md5(uniqid()).
        ".".$ext[count($ext) - 1]; //set the target path with a new name of image
        $j = $j + 1; //increment the number of uploaded images according to the files in array       

        if (($_FILES["file"]["size"][$i] < 100000) //Approx. 100kb files can be uploaded.
            && in_array($file_extension, $validextensions)) {
            if (move_uploaded_file($_FILES['file']['tmp_name'][$i], $target_path)) { //if file moved to uploads folder
                echo $j.
                ').<span id="noerror">Image uploaded successfully!.</span><br/><br/>';
            } else { //if file was not moved.
                echo $j.
                ').<span id="error">please try again!.</span><br/><br/>';
            }
        } else { //if file size and file type was incorrect.
            echo $j.
            ').<span id="error">***Invalid file Size or Type***</span><br/><br/>';
        }
    }
}

http://www.allinworld99.blogspot.com/2015/05/php-multiple-file-upload.html

Using C# and Selenium this code here works for me, NOTE you will want to use a parameter to swap out "localhost" in the FindWindow call for your particular server if it is not localhost and tracking which is the newest dialog open if there is more than one dialog hanging around, but this should get you started:

    using System.Threading;
    using System.Runtime.InteropServices;
    using System.Windows.Forms;
    using OpenQA.Selenium;

    [DllImport("user32.dll", SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool SetForegroundWindow(IntPtr hWnd);

    [DllImport("user32.dll", EntryPoint = "FindWindow")]
    public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

    public static void UploadFile(this IWebDriver webDriver, string fileName)
    {
        webDriver.FindElement(By.Id("SWFUpload_0")).Click();
        var dialogHWnd = FindWindow(null, "Select file(s) to upload by localhost");
        var setFocus = SetForegroundWindow(dialogHWnd);
        if (setFocus)
        {
            Thread.Sleep(500);
            SendKeys.SendWait(fileName);
            SendKeys.SendWait("{ENTER}");
        }
    }

Quite late to the party. As per spring official documentation "Spring Boot installs a whitelabel error page that you see in a browser client if you encounter a server error." https://docs.spring.io/spring-boot/docs/current/reference/htmlsingle/#howto-customize-the-whitelabel-error-page

1. You can disable the feature by setting server.error.whitelabel.enabled=false in application.yml or application.properties file.

2.Recommended way is set your error page so that end user can understand. Under resources/templates folder create a error.html file and add dependency in pom.xml file

<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>

Spring will automatically choose the error.html page as the default error template. Note:- Don't forget to update maven project after adding dependency.

The limit of requests in .Net can be configured from two properties together:

First

• Web.Config/system.web/httpRuntime/maxRequestLength
• Unit of measurement: kilobytes
• Default value 4096 KB (4 MB)
• Max. value 2147483647 KB (2 TB)

Second

• Web.Config/system.webServer/security/requestFiltering/requestLimits/maxAllowedContentLength (in bytes)
• Unit of measurement: bytes
• Default value 30000000 bytes (28.6 MB)
• Max. value 4294967295 bytes (4 GB)

References:

• http://www.whatsabyte.com/P1/byteconverter.htm
• https://www.iis.net/configreference/system.webserver/security/requestfiltering/requestlimits

Example:

<location path="upl">
   <system.web>
     <!--The default size is 4096 kilobytes (4 MB). MaxValue is 2147483647 KB (2 TB)-->
     <!-- 100 MB in kilobytes -->
     <httpRuntime maxRequestLength="102400" />
   </system.web>
   <system.webServer>
     <security>
       <requestFiltering>          
         <!--The default size is 30000000 bytes (28.6 MB). MaxValue is 4294967295 bytes (4 GB)-->
         <!-- 100 MB in bytes -->
         <requestLimits maxAllowedContentLength="104857600" />
       </requestFiltering>
     </security>
   </system.webServer>
 </location>

Update

BlobBuilder has been obsoleted see how you go using it, if you're using it for testing purposes.

Otherwise apply the below with migration strategies of going to Blob, such as the answers to this question.

Use a Blob instead

As an alternative there is a Blob that you can use in place of File as it is what File interface derives from as per W3C spec:

interface File : Blob {
    readonly attribute DOMString name;
    readonly attribute Date lastModifiedDate;
};

The File interface is based on Blob, inheriting blob functionality and expanding it to support files on the user's system.

Create the Blob

Using the BlobBuilder like this on an existing JavaScript method that takes a File to upload via XMLHttpRequest and supplying a Blob to it works fine like this:

var BlobBuilder = window.MozBlobBuilder || window.WebKitBlobBuilder;
var bb = new BlobBuilder();

var xhr = new XMLHttpRequest();
xhr.open('GET', 'http://jsfiddle.net/img/logo.png', true);

xhr.responseType = 'arraybuffer';

bb.append(this.response); // Note: not xhr.responseText

//at this point you have the equivalent of: new File()
var blob = bb.getBlob('image/png');

/* more setup code */
xhr.send(blob);

Extended example

The rest of the sample is up on jsFiddle in a more complete fashion but will not successfully upload as I can't expose the upload logic in a long term fashion.

On top of what the others have already stated, some sort of server-side scripting is necessary in order for the server to read and save the file.

Using PHP might be a good choice, but you're free to use any server-side scripting language. http://www.w3schools.com/php/php_file_upload.asp may be of use on that end.

This can also happen in safari if you try a selector with a missing ], for example

$('select[name="something"')

but interestingly, this same jquery selector with a missing bracket will work in chrome.

Note in 2018: readAsBinaryString is outdated. For use cases where previously you'd have used it, these days you'd use readAsArrayBuffer (or in some cases, readAsDataURL) instead.

readAsBinaryString says that the data must be represented as a binary string, where:

...every byte is represented by an integer in the range [0..255].

JavaScript originally didn't have a "binary" type (until ECMAScript 5's WebGL support of Typed Array* (details below) -- it has been superseded by ECMAScript 2015's ArrayBuffer) and so they went with a String with the guarantee that no character stored in the String would be outside the range 0..255. (They could have gone with an array of Numbers instead, but they didn't; perhaps large Strings are more memory-efficient than large arrays of Numbers, since Numbers are floating-point.)

If you're reading a file that's mostly text in a western script (mostly English, for instance), then that string is going to look a lot like text. If you read a file with Unicode characters in it, you should notice a difference, since JavaScript strings are UTF-16** (details below) and so some characters will have values above 255, whereas a "binary string" according to the File API spec wouldn't have any values above 255 (you'd have two individual "characters" for the two bytes of the Unicode code point).

If you're reading a file that's not text at all (an image, perhaps), you'll probably still get a very similar result between readAsText and readAsBinaryString, but with readAsBinaryString you know that there won't be any attempt to interpret multi-byte sequences as characters. You don't know that if you use readAsText, because readAsText will use an encoding determination to try to figure out what the file's encoding is and then map it to JavaScript's UTF-16 strings.

You can see the effect if you create a file and store it in something other than ASCII or UTF-8. (In Windows you can do this via Notepad; the "Save As" as an encoding drop-down with "Unicode" on it, by which looking at the data they seem to mean UTF-16; I'm sure Mac OS and *nix editors have a similar feature.) Here's a page that dumps the result of reading a file both ways:

<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-type" content="text/html;charset=UTF-8">
<title>Show File Data</title>
<style type='text/css'>
body {
    font-family: sans-serif;
}
</style>
<script type='text/javascript'>

    function loadFile() {
        var input, file, fr;

        if (typeof window.FileReader !== 'function') {
            bodyAppend("p", "The file API isn't supported on this browser yet.");
            return;
        }

        input = document.getElementById('fileinput');
        if (!input) {
            bodyAppend("p", "Um, couldn't find the fileinput element.");
        }
        else if (!input.files) {
            bodyAppend("p", "This browser doesn't seem to support the `files` property of file inputs.");
        }
        else if (!input.files[0]) {
            bodyAppend("p", "Please select a file before clicking 'Load'");
        }
        else {
            file = input.files[0];
            fr = new FileReader();
            fr.onload = receivedText;
            fr.readAsText(file);
        }

        function receivedText() {
            showResult(fr, "Text");

            fr = new FileReader();
            fr.onload = receivedBinary;
            fr.readAsBinaryString(file);
        }

        function receivedBinary() {
            showResult(fr, "Binary");
        }
    }

    function showResult(fr, label) {
        var markup, result, n, aByte, byteStr;

        markup = [];
        result = fr.result;
        for (n = 0; n < result.length; ++n) {
            aByte = result.charCodeAt(n);
            byteStr = aByte.toString(16);
            if (byteStr.length < 2) {
                byteStr = "0" + byteStr;
            }
            markup.push(byteStr);
        }
        bodyAppend("p", label + " (" + result.length + "):");
        bodyAppend("pre", markup.join(" "));
    }

    function bodyAppend(tagName, innerHTML) {
        var elm;

        elm = document.createElement(tagName);
        elm.innerHTML = innerHTML;
        document.body.appendChild(elm);
    }

</script>
</head>
<body>
<form action='#' onsubmit="return false;">
<input type='file' id='fileinput'>
<input type='button' id='btnLoad' value='Load' onclick='loadFile();'>
</form>
</body>
</html>

If I use that with a "Testing 1 2 3" file stored in UTF-16, here are the results I get:

Text (13):

54 65 73 74 69 6e 67 20 31 20 32 20 33

Binary (28):

ff fe 54 00 65 00 73 00 74 00 69 00 6e 00 67 00 20 00 31 00 20 00 32 00 20 00 33 00

As you can see, readAsText interpreted the characters and so I got 13 (the length of "Testing 1 2 3"), and readAsBinaryString didn't, and so I got 28 (the two-byte BOM plus two bytes for each character).

* XMLHttpRequest.response with responseType = "arraybuffer" is supported in HTML 5.

** "JavaScript strings are UTF-16" may seem like an odd statement; aren't they just Unicode? No, a JavaScript string is a series of UTF-16 code units; you see surrogate pairs as two individual JavaScript "characters" even though, in fact, the surrogate pair as a whole is just one character. See the link for details.

Use this to get the page scroll position.

var screenTop = $(document).scrollTop();

$('#content').css('top', screenTop);

If you don't use the STL, then the code looks a lot bit like C.

#include <cstdlib>
#include <new>

template< class T >
void append_to_array( T *&arr, size_t &n, T const &obj ) {
    T *tmp = static_cast<T*>( std::realloc( arr, sizeof(T) * (n+1) ) );
    if ( tmp == NULL ) throw std::bad_alloc( __FUNCTION__ );
       // assign things now that there is no exception
    arr = tmp;
    new( &arr[ n ] ) T( obj ); // placement new
    ++ n;
}

T can be any POD type, including pointers.

Note that arr must be allocated by malloc, not new[].

I've created a Git alias to do this, based on Bennedich's answer. Add the following to your ~/.gitconfig:

[github]
    user = "your_github_username"
[alias]
    ; Creates a new Github repo under the account specified by github.user.
    ; The remote repo name is taken from the local repo's directory name.
    ; Note: Referring to the current directory works because Git executes "!" shell commands in the repo root directory.
    hub-new-repo = "!python3 -c 'from subprocess import *; import os; from os.path import *; user = check_output([\"git\", \"config\", \"--get\", \"github.user\"]).decode(\"utf8\").strip(); repo = splitext(basename(os.getcwd()))[0]; check_call([\"curl\", \"-u\", user, \"https://api.github.com/user/repos\", \"-d\", \"{{\\\"name\\\": \\\"{0}\\\"}}\".format(repo), \"--fail\"]); check_call([\"git\", \"remote\", \"add\", \"origin\", \"[email protected]:{0}/{1}.git\".format(user, repo)]); check_call([\"git\", \"push\", \"origin\", \"master\"])'"

To use it, run

$ git hub-new-repo

from anywhere inside the local repository, and enter your Github password when prompted.

Don't like any of those solutions.

this is how i do it:

$update_query = "UPDATE db.tablename SET insert_time=now() WHERE username='" 
            . sqlEsc($somename) . "' ;";

then i use my own sqlEsc function:

function sqlEsc($val) 
{
    global $mysqli;
    return mysqli_real_escape_string($mysqli, $val);
}

In the parent process, fork()'s return value is the process ID of the child process. Stuff that value away somewhere for when you need to terminate the child process. fork() returns zero(0) in the child process.

When you need to terminate the child process, use the kill(2) function with the process ID returned by fork(), and the signal you wish to deliver (e.g. SIGTERM).

Remember to call wait() on the child process to prevent any lingering zombies.

What about this shorter, more transparent, yet more intuitive with array_walk

$attributes = array(
  'data-href'   => 'http://example.com',
  'data-width'  => '300',
  'data-height' => '250',
  'data-type'   => 'cover',
);

$args = "";
array_walk(
    $attributes, 
    function ($item, $key) use (&$args) {
        $args .= $key ." = '" . $item . "' ";  
    }
);
// output: 'data-href="http://example.com" data-width="300" data-height="250" data-type="cover"

Hello guys I am stucked with this. I've a Document Profile who has a reference to User,and I've tried to list the profiles where user ref is not null (because I already filtered by rol during the population), but after googleing a few hours I cannot figure out how to get this. I have this query:

const profiles = await Profile.find({ user: {$exists: true,  $ne: null }})
                            .select("-gallery")
                            .sort( {_id: -1} )
                            .skip( skip )
                            .limit(10)
                            .select(exclude)
                            .populate({
                                path: 'user',
                                match: { role: {$eq: customer}},
                                select: '-password -verified -_id -__v'
                              })

                            .exec();

And I get this result, how can I remove from the results the user:null colletions? . I meant, I dont want to get the profile when user is null (the role does not match).
{
    "code": 200,
    "profiles": [
        {
            "description": null,
            "province": "West Midlands",
            "country": "UK",
            "postal_code": "83000",
            "user": null
        },
        {
            "description": null,

            "province": "Madrid",
            "country": "Spain",
            "postal_code": "43000",
            "user": {
                "role": "customer",
                "name": "pedrita",
                "email": "[email protected]",
                "created_at": "2020-06-05T11:05:36.450Z"
            }
        }
    ],
    "page": 1
}

Thanks in advance.

As assembly is the smallest unit of versioning security, deployment and reusability of code in Microsoft.Net.

It contains:

- Assembly Identity
- Manifest
- Metadata
- MSIL Code
- Security Information
- Assembly Header

If you are talking about the scrollbar that automatically appears on a div with overflow: scroll (or auto), then no, that's still a native scrollbar rendered by the browser using normal OS widgets, and not something that can be styled(*).

Whilst you can replace it with a proxy made out of stylable divs and JavaScript as suggested by Matt, I wouldn't recommend it for the general case. Script-driven scrollbars never quite behave exactly the same as real OS scrollbars, causing usability and accessibility problems.

(*: Except for the IE colouring styles, which I wouldn't really recommend either. Apart from being IE-only, using them forces IE to fall back from using nice scrollbar images from the current Windows theme to ugly old Win95-style scrollbars.)

To change package I have searched and tried many methods but some are very hard and some are outdated. While searching I found a website that discuss a very simple method that are tested and personally i have also used this. Link : https://www.geoclassifieds.in/2021/02/change-package-name-react-native.html

The way to use the ellipsis or varargs inside the method is as if it were an array:

public void PrintWithEllipsis(String...setOfStrings) {
    for (String s : setOfStrings)
        System.out.println(s);
}

This method can be called as following:

obj.PrintWithEllipsis(); // prints nothing
obj.PrintWithEllipsis("first"); // prints "first"
obj.PrintWithEllipsis("first", "second"); // prints "first\nsecond"

Inside PrintWithEllipsis, the type of setOfStrings is an array of String. So you could save the compiler some work and pass an array:

String[] argsVar = {"first", "second"};
obj.PrintWithEllipsis(argsVar);

For varargs methods, a sequence parameter is treated as being an array of the same type. So if two signatures differ only in that one declares a sequence and the other an array, as in this example:

void process(String[] s){}
void process(String...s){}

then a compile-time error occurs.

Source: The Java Programming Language specification, where the technical term is variable arity parameter rather than the common term varargs.

While it's not hard to do this manually using BufferedReader and InputStreamReader, I'd use Guava:

List<String> lines = Files.readLines(file, Charsets.UTF_8);

You can then do whatever you like with those lines.

EDIT: Note that this will read the whole file into memory in one go. In most cases that's actually fine - and it's certainly simpler than reading it line by line, processing each line as you read it. If it's an enormous file, you may need to do it that way as per T.J. Crowder's answer.

Simply running /bin/bash --login did the trick for me, weirdly. Can't explain it.

Actually, I faced this problem too, I got around with it by making a .bat runner for my jar file

here is the code:

class FileHandler{
   public static File create_CMD_Rnner(){
      int exitCode = -1625348952;
      try{
           File runner = new File(Main.batName);
           PrintWriter printer = new PrintWriter(runner);
           printer.println("@echo off");
           printer.println("title " + Main.applicationTitle);
           printer.println("java -jar " + Main.jarName + " " + Main.startCode );
           printer.println("PAUSE");
           printer.flush();
           printer.close();
           return runner;
       }catch(Exception e){
           System.err.println("Coudln't create a runner bat \n exit code: " + exitCode);
           System.exit(exitCode);
           return null;
       }
   }
}

Then in Your Main application class do this:

public class Main{
    static String jarName = "application.jar";
    static String applicationTitle = "java Application";
    static String startCode = "javaIsTheBest";
    static String batName = "_.bat";


    public static void main(String args[]) throws Exception{
        if(args.length == 0 || !args[0].equals(startCode)) {
            Desktop.getDesktop().open(FilesHandler.create_CMD_Rnner());
            System.exit(0);
        }else{
            //just in case you wanted to hide the bat
            deleteRunner();
            // Congratulations now you are running in a cmd window ... do whatever you want
            //......
            System.out.println("i Am Running in CMD");
            //......
            Thread.sleep(84600);
        }
    }


    public static void deleteRunner(){
        File batRunner = new File(batName);
        if(batRunner.exists()) batRunner.delete();
    }
}

Please Note that

1. this code (my code) works only with a jar file, not a class file.

2. the jar file must have the same name as the String "jarName" is the Main class

If you are using ASP.NET then you can use

yourControlName.Focus()

in the code on the server, which will add appropriate JavaScript into the page.

Other server-side frameworks may have an equivalent method.

Try:

exec('drop table #tab') -- you can add condition 'if table exists'
exec('select * into #tab from tab')

For a binary number of n digits the maximum decimal value it can hold will be

2^n - 1, and 2^n is the total permutations that can be generated using these many digits.

Taking a case where you only want three digits, ie your case 1. We see that the requirements is,

2^n - 1 >= 999

Applying log to both sides,

log(2^n - 1) >= log(999)

log(2^n) - log(1) >= log(999)

n = 9.964 (approx).

Taking the ceil value of n since 9.964 can't be a valid number of digits, we get n = 10.

I personally like the solution using the parser module, which is the second Answer to this question and is beautiful, as you don't have to construct any string literals to get it working. BUT, one downside is that it is 90% slower than the accepted answer with strptime.

from dateutil import parser
from datetime import datetime
import timeit

def dt():
    dt = parser.parse("Jun 1 2005  1:33PM")
def strptime():
    datetime_object = datetime.strptime('Jun 1 2005  1:33PM', '%b %d %Y %I:%M%p')

print(timeit.timeit(stmt=dt, number=10**5))
print(timeit.timeit(stmt=strptime, number=10**5))
>10.70296801342902
>1.3627995655316933

As long as you are not doing this a million times over and over again, I still think the parser method is more convenient and will handle most of the time formats automatically.

I am facing a strange behavior.

SELECT INTO and SET Both works for some variables and not for others. Event syntaxes are the same

SET @Invoice_UserId :=  (SELECT UserId FROM invoice WHERE InvoiceId = @Invoice_Id  LIMIT 1); -- Working
                SET @myamount := (SELECT amount FROM invoice WHERE InvoiceId = @Invoice_Id LIMIT 1); - Not working
SELECT  Amount INTO @myamount FROM invoice WHERE InvoiceId = 29  LIMIT 1; - Not working

If I run these queries directly then works, but not working in stored procedure.

ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);
executor.schedule(yourRunnable, 1L, TimeUnit.MINUTES);
...
// when done...
executor.shutdown();

handle.exe http://technet.microsoft.com/en-us/sysinternals/bb896655.aspx

THis has helped me sooooo many times....

As best coding practices suggests, use setTimeout instead of setInterval.

function foo() {

    // your function code here

    setTimeout(foo, 5000);
}

foo();

Please note that this is NOT a recursive function. The function is not calling itself before it ends, it's calling a setTimeout function that will be later call the same function again.

may be:

UIImage *img = [[UIImage alloc] init];

and when you want to change the image:

img = [UIImage imageNamed:@"nameOfPng.png"];

but the object wasn't in the same place in the memory, but if you use the pointer, the same pointer will be point to the last image loaded.

A non-jQuery way to get the available screen dimension. window.screen.width/height has already been put up, but for responsive webdesign and completeness sake I think its worth to mention those attributes:

alert(window.screen.availWidth);
alert(window.screen.availHeight);

http://www.quirksmode.org/dom/w3c_cssom.html#t10 :

availWidth and availHeight - The available width and height on the screen (excluding OS taskbars and such).

I did the following:

var defaultOption = new Option();
defaultOption.selected = true;    
$(".js-select2").append(defaultOption);

For other options I use then:

var realOption = new Option("Option Value", "id");
realOption.selected = false;    
$(".js-select2").append(realOption);

Go to the Sdk manager--> SDKtools --> instal the emulator 25.3.1

Here is a STL-like class

File "csvfile.h"

#pragma once

#include <iostream>
#include <fstream>

class csvfile;

inline static csvfile& endrow(csvfile& file);
inline static csvfile& flush(csvfile& file);

class csvfile
{
    std::ofstream fs_;
    const std::string separator_;
public:
    csvfile(const std::string filename, const std::string separator = ";")
        : fs_()
        , separator_(separator)
    {
        fs_.exceptions(std::ios::failbit | std::ios::badbit);
        fs_.open(filename);
    }

    ~csvfile()
    {
        flush();
        fs_.close();
    }

    void flush()
    {
        fs_.flush();
    }

    void endrow()
    {
        fs_ << std::endl;
    }

    csvfile& operator << ( csvfile& (* val)(csvfile&))
    {
        return val(*this);
    }

    csvfile& operator << (const char * val)
    {
        fs_ << '"' << val << '"' << separator_;
        return *this;
    }

    csvfile& operator << (const std::string & val)
    {
        fs_ << '"' << val << '"' << separator_;
        return *this;
    }

    template<typename T>
    csvfile& operator << (const T& val)
    {
        fs_ << val << separator_;
        return *this;
    }
};


inline static csvfile& endrow(csvfile& file)
{
    file.endrow();
    return file;
}

inline static csvfile& flush(csvfile& file)
{
    file.flush();
    return file;
}

File "main.cpp"

#include "csvfile.h"

int main()
{
    try
    {
        csvfile csv("MyTable.csv"); // throws exceptions!
        // Header
        csv << "X" << "VALUE"        << endrow;
        // Data
        csv <<  1  << "String value" << endrow;
        csv <<  2  << 123            << endrow;
        csv <<  3  << 1.f            << endrow;
        csv <<  4  << 1.2            << endrow;
    }
    catch (const std::exception& ex)
    {
        std::cout << "Exception was thrown: " << e.what() << std::endl;
    }
    return 0;
}

Latest version here

First you need to do is run (replace with your port number):

fuser -k 3000/tcp

This will release the port. After you run the above command run:

service docker restart

And your problem is resolved.

showInLegend is a series-specific option that can hide the series from the legend. If the requirement is to hide the legends completely then it is better to use enabled: false property as shown below:

legend: { enabled: false }

More information about legend is here

Same thing but in ANSI way

SELECT * FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME IN ( SELECT TABLE_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE COLUMN_NAME = 'CreateDate' )

One of the scenarios I found useful to use CTE is when you want to get DISTINCT rows of data based on one or more columns but return all columns in the table. With a standard query you might first have to dump the distinct values into a temp table and then try to join them back to the original table to retrieve the rest of the columns or you might write an extremely complex partition query that can return the results in one run but in most likelihood, it will be unreadable and cause performance issue.

But by using CTE (as answered by Tim Schmelter on Select the first instance of a record)

WITH CTE AS(
    SELECT myTable.*
    , RN = ROW_NUMBER()OVER(PARTITION BY patientID ORDER BY ID)
    FROM myTable 
)
SELECT * FROM CTE
WHERE RN = 1

As you can see, this is much easier to read and maintain. And in comparison to other queries, is much better at performance.

C++ does lots of automatic casting for you - that is, if you have a variable of type bool and pass it to something expecting an int, it will make it into an int for you - 0 for false and 1 for true.

I don't have my standard around to see if this is guaranteed, but every compiler I've used does this (so one can assume it will always work).

However, relying on this conversion is a bad idea. Code can stop compiling if a new method is added that overloads the int signature, etc.

If the above advices do not work for you, change the log level of your logging framework configuration (log4j, logback...) to INFO. Then re-check the output.

The logger may be hiding messages like:

INFO  org.elasticsearch.client.transport.TransportClientNodesService - failed to get node info for...
Caused by: ElasticsearchSecurityException: missing authentication token for action...

(in the example above, there was X-Pack plugin in ElasticSearch which requires authentication)

You can install the JVisualVM plugin from here: https://plugins.jetbrains.com/plugin/3749?pr=

This will allow you to analyse the dump within the plugin.

I'm not sure about the syntax of your specific commands (e.g., vagrant, etc), but in general...

Just register Ansible's (not-normally-shown) JSON output to a variable, then display each variable's stdout_lines attribute:

- name: Generate SSH keys for vagrant user
  user: name=vagrant generate_ssh_key=yes ssh_key_bits=2048
  register: vagrant
- debug: var=vagrant.stdout_lines

- name: Show SSH public key
  command: /bin/cat $home_directory/.ssh/id_rsa.pub
  register: cat
- debug: var=cat.stdout_lines

- name: Wait for user to copy SSH public key
  pause: prompt="Please add the SSH public key above to your GitHub account"
  register: pause
- debug: var=pause.stdout_lines

Extracting data from PDF is bound to be fraught with problems. Are the documents created through some kind of automatic process? If so, you might consider converting the PDFs to uncompressed PostScript (try pdf2ps) and seeing if the PostScript contains some sort of regular pattern which you can exploit.

I can't see an obvious way to do that in the docs, but you try triggering the focus (or click) event on the autocomplete enabled textbox:

$('#myButton').click(function() {
   $('#autocomplete').trigger("focus"); //or "click", at least one should work
});

You can use the function RESHAPE:

B = reshape(A.',1,[]);

The following works in Python 2.6, 2.7, and 3.2:

import os
import sys
buf_arg = 0
if sys.version_info[0] == 3:
    os.environ['PYTHONUNBUFFERED'] = '1'
    buf_arg = 1
sys.stdout = os.fdopen(sys.stdout.fileno(), 'a+', buf_arg)
sys.stderr = os.fdopen(sys.stderr.fileno(), 'a+', buf_arg)

Excellent question. I've tackled this problem as well, and while I agree that "factories" (class-method constructors) are a good method, I would like to suggest another, which I've also found very useful:

Here's a sample (this is a read method and not a constructor, but the idea is the same):

def read(self, str=None, filename=None, addr=0):
    """ Read binary data and return a store object. The data
        store is also saved in the interal 'data' attribute.

        The data can either be taken from a string (str 
        argument) or a file (provide a filename, which will 
        be read in binary mode). If both are provided, the str 
        will be used. If neither is provided, an ArgumentError 
        is raised.
    """
    if str is None:
        if filename is None:
            raise ArgumentError('Please supply a string or a filename')

        file = open(filename, 'rb')
        str = file.read()
        file.close()
    ...
    ... # rest of code

The key idea is here is using Python's excellent support for named arguments to implement this. Now, if I want to read the data from a file, I say:

obj.read(filename="blob.txt")

And to read it from a string, I say:

obj.read(str="\x34\x55")

This way the user has just a single method to call. Handling it inside, as you saw, is not overly complex

<html lang="en">
<head>
    <title>Jquery - get ip address</title>
    <script type="text/javascript" src="//cdn.jsdelivr.net/jquery/1/jquery.min.js"></script>
</head>
<body>


<h1>Your Ip Address : <span class="ip"></span></h1>


<script type="text/javascript">
    $.getJSON("http://jsonip.com?callback=?", function (data) {
        $(".ip").text(data.ip);
    });
</script>


</body>
</html>

The simple answer:

• doing a MOV RBX, 3 and MUL RBX is expensive; just ADD RBX, RBX twice

• ADD 1 is probably faster than INC here

• MOV 2 and DIV is very expensive; just shift right

• 64-bit code is usually noticeably slower than 32-bit code and the alignment issues are more complicated; with small programs like this you have to pack them so you are doing parallel computation to have any chance of being faster than 32-bit code

If you generate the assembly listing for your C++ program, you can see how it differs from your assembly.

On the contrary, I do think working with list makes it easy to automate such things.

Here is one solution (I stored your four dataframes in folder temp/).

filenames <- list.files("temp", pattern="*.csv", full.names=TRUE)
ldf <- lapply(filenames, read.csv)
res <- lapply(ldf, summary)
names(res) <- substr(filenames, 6, 30)

It is important to store the full path for your files (as I did with full.names), otherwise you have to paste the working directory, e.g.

filenames <- list.files("temp", pattern="*.csv")
paste("temp", filenames, sep="/")

will work too. Note that I used substr to extract file names while discarding full path.

You can access your summary tables as follows:

> res$`df4.csv`
       A              B        
 Min.   :0.00   Min.   : 1.00  
 1st Qu.:1.25   1st Qu.: 2.25  
 Median :3.00   Median : 6.00  
 Mean   :3.50   Mean   : 7.00  
 3rd Qu.:5.50   3rd Qu.:10.50  
 Max.   :8.00   Max.   :16.00  

If you really want to get individual summary tables, you can extract them afterwards. E.g.,

for (i in 1:length(res))
  assign(paste(paste("df", i, sep=""), "summary", sep="."), res[[i]])

Olmo's suggestion is very good, but I'd add this: If you're not sure about the size, it's better to make it a little bigger than a little smaller. When a list is full, keep in mind it will double its size to add more elements.

For example: suppose you will need about 50 elements. If you use a 50 elements size and the final number of elements is 51, you'll end with a 100 sized list with 49 wasted positions.

1. typedef is used to alias types; in this case you're aliasing FunctionFunc to void(*)().

2. Indeed the syntax does look odd, have a look at this:

   typedef   void      (*FunctionFunc)  ( );
   //         ^                ^         ^
   //     return type      type name  arguments
   

3. No, this simply tells the compiler that the FunctionFunc type will be a function pointer, it doesn't define one, like this:

   FunctionFunc x;
   void doSomething() { printf("Hello there\n"); }
   x = &doSomething;
   
   x(); //prints "Hello there"
   

Just restarting the visual Studio would do the job. As I did this and it worked like a charm

the bottom cell will grow as you enter more text ... setting the table width will help too

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<head>
</head>
<body>
<table id="content" style="min-height:525px; height:525px; width:100%; border:0px; margin:0; padding:0; border-collapse:collapse;">
<tr><td style="height:10px; background-color:#900;">Upper</td></tr>
<tr><td style="min-height:515px; height:515px; background-color:#909;">lower<br/>
</td></tr>
</table>
</body>
</html>

You build the object before encoding it to a JSON string:

import json

data = {}
data['key'] = 'value'
json_data = json.dumps(data)

JSON is a serialization format, textual data representing a structure. It is not, itself, that structure.

With:

FILES = $(shell ls)

indented underneath all like that, it's a build command. So this expands $(shell ls), then tries to run the command FILES ....

If FILES is supposed to be a make variable, these variables need to be assigned outside the recipe portion, e.g.:

FILES = $(shell ls)
all:
        echo $(FILES)

Of course, that means that FILES will be set to "output from ls" before running any of the commands that create the .tgz files. (Though as Kaz notes the variable is re-expanded each time, so eventually it will include the .tgz files; some make variants have FILES := ... to avoid this, for efficiency and/or correctness.¹)

If FILES is supposed to be a shell variable, you can set it but you need to do it in shell-ese, with no spaces, and quoted:

all:
        FILES="$(shell ls)"

However, each line is run by a separate shell, so this variable will not survive to the next line, so you must then use it immediately:

        FILES="$(shell ls)"; echo $$FILES

This is all a bit silly since the shell will expand * (and other shell glob expressions) for you in the first place, so you can just:

        echo *

as your shell command.

Finally, as a general rule (not really applicable to this example): as esperanto notes in comments, using the output from ls is not completely reliable (some details depend on file names and sometimes even the version of ls; some versions of ls attempt to sanitize output in some cases). Thus, as l0b0 and idelic note, if you're using GNU make you can use $(wildcard) and $(subst ...) to accomplish everything inside make itself (avoiding any "weird characters in file name" issues). (In sh scripts, including the recipe portion of makefiles, another method is to use find ... -print0 | xargs -0 to avoid tripping over blanks, newlines, control characters, and so on.)

¹The GNU Make documentation notes further that POSIX make added ::= assignment in 2012. I have not found a quick reference link to a POSIX document for this, nor do I know off-hand which make variants support ::= assignment, although GNU make does today, with the same meaning as :=, i.e., do the assignment right now with expansion.

Note that VAR := $(shell command args...) can also be spelled VAR != command args... in several make variants, including all modern GNU and BSD variants as far as I know. These other variants do not have $(shell) so using VAR != command args... is superior in both being shorter and working in more variants.

double d = 1.234;
int i = Convert.ToInt32(d);

Reference

Handles rounding like so:

rounded to the nearest 32-bit signed integer. If value is halfway between two whole numbers, the even number is returned; that is, 4.5 is converted to 4, and 5.5 is converted to 6.

This query here will list the total size that a table takes up - clustered index, heap and all nonclustered indices:

SELECT 
    s.Name AS SchemaName,
    t.NAME AS TableName,
    p.rows AS RowCounts,
    SUM(a.total_pages) * 8 AS TotalSpaceKB, 
    SUM(a.used_pages) * 8 AS UsedSpaceKB, 
    (SUM(a.total_pages) - SUM(a.used_pages)) * 8 AS UnusedSpaceKB
FROM 
    sys.tables t
INNER JOIN 
    sys.schemas s ON s.schema_id = t.schema_id
INNER JOIN      
    sys.indexes i ON t.OBJECT_ID = i.object_id
INNER JOIN 
    sys.partitions p ON i.object_id = p.OBJECT_ID AND i.index_id = p.index_id
INNER JOIN 
    sys.allocation_units a ON p.partition_id = a.container_id
WHERE 
    t.NAME NOT LIKE 'dt%'    -- filter out system tables for diagramming
    AND t.is_ms_shipped = 0
    AND i.OBJECT_ID > 255 
GROUP BY 
    t.Name, s.Name, p.Rows
ORDER BY 
    s.Name, t.Name

If you want to separate table space from index space, you need to use AND i.index_id IN (0,1) for the table space (index_id = 0 is the heap space, index_id = 1 is the size of the clustered index = data pages) and AND i.index_id > 1 for the index-only space

Try using this:-

mkdir -p dir;

NOTE:- This will also create any intermediate directories that don't exist; for instance,

Check out mkdir -p

or try this:-

if [[ ! -e $dir ]]; then
    mkdir $dir
elif [[ ! -d $dir ]]; then
    echo "$Message" 1>&2
fi

this short answer might help someone who is looking to do. add this simple code in your code

<EditText
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:editable="false"
    android:focusable="false"
    android:singleLine="true" />

Highlight the cell, use Dat => Text to Columns and the DELIMITER is space. Result will appear in as many columns as the split find the space.

it needs to be .Row.count not Row.Number?

That's what I used and it works fine Sub TransfersToCleared() Dim ws As Worksheet Dim LastRow As Long Set ws = Application.Worksheets("Export (2)") 'Data Source LastRow = Range("A" & Rows.Count).End(xlUp).Row ws.Range("A2:AB" & LastRow).SpecialCells(xlCellTypeVisible).Copy

Both async and defer scripts begin to download immediately without pausing the parser and both support an optional onload handler to address the common need to perform initialization which depends on the script.

The difference between async and defer centers around when the script is executed. Each async script executes at the first opportunity after it is finished downloading and before the window’s load event. This means it’s possible (and likely) that async scripts are not executed in the order in which they occur in the page. Whereas the defer scripts, on the other hand, are guaranteed to be executed in the order they occur in the page. That execution starts after parsing is completely finished, but before the document’s DOMContentLoaded event.

Source & further details: here.

Here I'm basically wrapping a button in a link. The advantage is that you can post to different action methods in the same form.

<a href="Controller/ActionMethod">
    <input type="button" value="Click Me" />
</a>

Adding parameters:

<a href="Controller/ActionMethod?userName=ted">
    <input type="button" value="Click Me" />
</a>

Adding parameters from a non-enumerated Model:

<a href="Controller/[email protected]">
    <input type="button" value="Click Me" />
</a>

You can do the same for an enumerated Model too. You would just have to reference a single entity first. Happy Coding!

I guess a EXIT_ON_CLOSE

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

before System.exit(0) is better since you can write a Window Listener to make some cleaning operations before actually leaving the app.

That window listener allows you to defined:

public void windowClosing(WindowEvent e) {
    displayMessage("WindowListener method called: windowClosing.");
    //A pause so user can see the message before
    //the window actually closes.
    ActionListener task = new ActionListener() {
        boolean alreadyDisposed = false;
        public void actionPerformed(ActionEvent e) {
            if (frame.isDisplayable()) {
                alreadyDisposed = true;
                frame.dispose();
            }
        }
    };
    Timer timer = new Timer(500, task); //fire every half second
    timer.setInitialDelay(2000);        //first delay 2 seconds
    timer.setRepeats(false);
    timer.start();
}

public void windowClosed(WindowEvent e) {
    //This will only be seen on standard output.
    displayMessage("WindowListener method called: windowClosed.");
}

android:inputType="number" or android:inputType="phone". You can keep this. You will get the keyboard containing numbers. For further details on different types of keyboard, check this link.

I think it is possible only if you create your own soft keyboard. Or try this android:inputType="number|textVisiblePassword. But it still shows other characters. Besides you can keep android:digits="0123456789" to allow only numbers in your edittext. Or if you still want the same as in image, try combining two or more features with | separator and check your luck, but as per my knowledge you have to create your own keypad to get exactly like that..

If you are using Maven you may have both src/{main,test}/resources/META-INF/persistence.xml. This is a common setup: test your JPA code with h2 or Derby and deploy it with PostgreSQL or some other full DBMS. If you're using this pattern, do make sure the two files have different unit names, else some versions of the Persistence class will try to load BOTH (because of course your test-time CLASSPATH includes both classes and test-classes); this will cause conflicting definitions of the persistence unit, resulting in the dreaded annoying message that we all hate so much!

Worse: this may "work" with some older versions of e.g., Hibernate, but fail with current versions. Worth getting it right anyway...

Another option (to avoid any forced push which can be problematic for other contributors) is to:

• put your new commits in a dedicated branch
• reset your master on origin/master
• merge your dedicated branch to master, always keeping commits from the dedicated branch (meaning creating new revisions on top of master which will mirror your dedicated branch).
  See "git command for making one branch like another" for strategies to simulate a git merge --strategy=theirs.

That way, you can push master to remote without having to force anything.

It is indeed possible.

Here is an example calling the Weather SOAP Service using plain requests lib:

import requests
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
#headers = {'content-type': 'application/soap+xml'}
headers = {'content-type': 'text/xml'}
body = """<?xml version="1.0" encoding="UTF-8"?>
         <SOAP-ENV:Envelope xmlns:ns0="http://ws.cdyne.com/WeatherWS/" xmlns:ns1="http://schemas.xmlsoap.org/soap/envelope/" 
            xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/">
            <SOAP-ENV:Header/>
              <ns1:Body><ns0:GetWeatherInformation/></ns1:Body>
         </SOAP-ENV:Envelope>"""

response = requests.post(url,data=body,headers=headers)
print response.content

Some notes:

• The headers are important. Most SOAP requests will not work without the correct headers. application/soap+xml is probably the more correct header to use (but the weatherservice prefers text/xml
• This will return the response as a string of xml - you would then need to parse that xml.
• For simplicity I have included the request as plain text. But best practise would be to store this as a template, then you can load it using jinja2 (for example) - and also pass in variables.

For example:

from jinja2 import Environment, PackageLoader
env = Environment(loader=PackageLoader('myapp', 'templates'))
template = env.get_template('soaprequests/WeatherSericeRequest.xml')
body = template.render()

Some people have mentioned the suds library. Suds is probably the more correct way to be interacting with SOAP, but I often find that it panics a little when you have WDSLs that are badly formed (which, TBH, is more likely than not when you're dealing with an institution that still uses SOAP ;) ).

You can do the above with suds like so:

from suds.client import Client
url="http://wsf.cdyne.com/WeatherWS/Weather.asmx?WSDL"
client = Client(url)
print client ## shows the details of this service

result = client.service.GetWeatherInformation() 
print result 

Note: when using suds, you will almost always end up needing to use the doctor!

Finally, a little bonus for debugging SOAP; TCPdump is your friend. On Mac, you can run TCPdump like so:

sudo tcpdump -As 0 

This can be helpful for inspecting the requests that actually go over the wire.

The above two code snippets are also available as gists:

• SOAP Request with requests
• SOAP Request with suds

shawn: My eclipse have started when I extended bundles:

osgi.bundles=org.eclipse.equinox.common@2:start, org.eclipse.update.configurator@3:start, org.eclipse.core.runtime@start, org.eclipse.equinox.ds@start, org.eclipse.equinox.event@start   

Complete snippet would look like the following. It expands @mouad's answer to asserting on error's message (or generally str representation of its args), which may be useful.

from unittest import TestCase


class TestNoneTypeError(TestCase):

  def setUp(self): 
    self.testListNone = None

  def testListSlicing(self):
    with self.assertRaises(TypeError) as ctx:
        self.testListNone[:1]
    self.assertEqual("'NoneType' object is not subscriptable", str(ctx.exception))

I cannot comment on @Michael Blackburn, but I guess you got the downvote because the GroupBy is not necessary in this case.

Use it like:

var lookupOfCustomObjects = listOfCustomObjects.ToLookup(o=>o.PropertyName);
var listWithAllCustomObjectsWithPropertyName = lookupOfCustomObjects[propertyName]

Additionally, I've seen this perform way better than when using GroupBy().ToDictionary().

For me, this was the best solution:

private void dataGridView1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.KeyData == Keys.Enter)
    {
        MessageBox.Show("Enter key pressed");
    }
}

I just had to do this myself, you need to do it the other way around.

• do not play with the vertical-align of your text
• play with the vertical align of the font-awesome icon

<div>
  <span class="icon icon-2x icon-camera" style=" vertical-align: middle;"></span>
  <span class="my-text">hello world</span>
</div>

Of course you could not use inline styles and target it with your own css class. But this works in a copy paste fashion.

See here: Vertical alignment of text and icon in button

If it were up to me however, I would not use the icon-2x. And simply specify the font-size myself, as in the following

<div class='my-fancy-container'>
    <span class='my-icon icon-file-text'></span>
    <span class='my-text'>Hello World</span>
</div>

.my-icon {
    vertical-align: middle;
    font-size: 40px;
}

.my-text {
    font-family: "Courier-new";
}

.my-fancy-container {
    border: 1px solid #ccc;
    border-radius: 6px;
    display: inline-block;
    margin: 60px;
    padding: 10px;
}

for a working example, please see JsFiddle

If the project came with a Visual Studio project file, then that should already be configured to find the headers for you. If not, you'll have to add the include file directory to the project settings by right-clicking the project and selecting Properties, clicking on "C/C++", and adding the directory containing the include files to the "Additional Include Directories" edit box.

for a simple way to get all tables on the server, try this:

SET NOCOUNT ON
DECLARE @AllTables table (CompleteTableName nvarchar(4000))
INSERT INTO @AllTables (CompleteTableName)
    EXEC sp_msforeachdb 'select @@SERVERNAME+''.''+''?''+''.''+s.name+''.''+t.name from [?].sys.tables t inner join sys.schemas s on t.schema_id=s.schema_id'
SET NOCOUNT OFF
SELECT * FROM @AllTables ORDER BY 1

it will return a single column that contains the server+database+schema+table name: sample output:

CompleteTableName
--------------------------------------------
YourServer.YourDatabase1.YourSchema1.YourTable1
YourServer.YourDatabase1.YourSchema1.YourTable2
YourServer.YourDatabase1.YourSchema2.YourTable1
YourServer.YourDatabase1.YourSchema2.YourTable2
YourServer.YourDatabase2.YourSchema1.YourTable1

if you are not on SQL Server 2005 or up, replace the DECLARE @AllTables table with CREATE TABLE #AllTables and then every @AllTables with #AllTables and it will work.

EDIT
here is a version that will allow a search parameter to be used on any part or parts of the server+database+schema+table names:

SET NOCOUNT ON
DECLARE @AllTables table (CompleteTableName nvarchar(4000))
DECLARE @Search nvarchar(4000)
       ,@SQL   nvarchar(4000)
SET @Search=null --all rows
SET @SQL='select @@SERVERNAME+''.''+''?''+''.''+s.name+''.''+t.name from [?].sys.tables t inner join sys.schemas s on t.schema_id=s.schema_id WHERE @@SERVERNAME+''.''+''?''+''.''+s.name+''.''+t.name LIKE ''%'+ISNULL(@SEARCH,'')+'%'''

INSERT INTO @AllTables (CompleteTableName)
    EXEC sp_msforeachdb @SQL
SET NOCOUNT OFF
SELECT * FROM @AllTables ORDER BY 1

set @Search to NULL for all tables, set it to things like 'dbo.users' or 'users' or '.master.dbo' or even include wildcards like '.master.%.u', etc.

Swift Users

Swift users can check out My Swift Answer for this question.
Or, check out Yedidya Reiss's Answer, which translates this Objective-C code to Swift.

Objective-C Users

The rest of this answer is written in Objective-C

App Store Connect

1. Go to appstoreconnect.apple.com and log in
2. Click My Apps then click the app you want do add the purchase to
3. Click the Features header, and then select In-App Purchases on the left
4. Click the + icon in the middle
5. For this tutorial, we are going to be adding an in-app purchase to remove ads, so choose non-consumable. If you were going to send a physical item to the user, or give them something that they can buy more than once, you would choose consumable.
6. For the reference name, put whatever you want (but make sure you know what it is)
7. For product id put tld.websitename.appname.referencename this will work the best, so for example, you could use com.jojodmo.blix.removeads
8. Choose cleared for sale and then choose price tier as 1 (99¢). Tier 2 would be $1.99, and tier 3 would be $2.99. The full list is available if you click view pricing matrix I recommend you use tier 1, because that's usually the most anyone will ever pay to remove ads.
9. Click the blue add language button, and input the information. This will ALL be shown to the customer, so don't put anything you don't want them seeing
10. For hosting content with Apple choose no
11. You can leave the review notes blank FOR NOW.
12. Skip the screenshot for review FOR NOW, everything we skip we will come back to.
13. Click 'save'

It could take a few hours for your product ID to register in App Store Connect, so be patient.

Setting up your project

Now that you've set up your in-app purchase information on App Store Connect, go into your Xcode project, and go to the application manager (blue page-like icon at the top of where your methods and header files are) click on your app under targets (should be the first one) then go to general. At the bottom, you should see linked frameworks and libraries click the little plus symbol and add the framework StoreKit.framework If you don't do this, the in-app purchase will NOT work!

If you are using Objective-C as the language for your app, you should skip these five steps. Otherwise, if you are using Swift, you can follow My Swift Answer for this question, here, or, if you prefer to use Objective-C for the In-App Purchase code but are using Swift in your app, you can do the following:

1. Create a new .h (header) file by going to File > New > File... (Command ? + N). This file will be referred to as "Your .h file" in the rest of the tutorial

2. When prompted, click Create Bridging Header. This will be our bridging header file. If you are not prompted, go to step 3. If you are prompted, skip step 3 and go directly to step 4.

3. Create another .h file named Bridge.h in the main project folder, Then go to the Application Manager (the blue page-like icon), then select your app in the Targets section, and click Build Settings. Find the option that says Swift Compiler - Code Generation, and then set the Objective-C Bridging Header option to Bridge.h

4. In your bridging header file, add the line #import "MyObjectiveCHeaderFile.h", where MyObjectiveCHeaderFile is the name of the header file that you created in step one. So, for example, if you named your header file InAppPurchase.h, you would add the line #import "InAppPurchase.h" to your bridge header file.

5. Create a new Objective-C Methods (.m) file by going to File > New > File... (Command ? + N). Name it the same as the header file you created in step 1. For example, if you called the file in step 1 InAppPurchase.h, you would call this new file InAppPurchase.m. This file will be referred to as "Your .m file" in the rest of the tutorial.

Coding

Now we're going to get into the actual coding. Add the following code into your .h file:

BOOL areAdsRemoved;

- (IBAction)restore;
- (IBAction)tapsRemoveAds;

Next, you need to import the StoreKit framework into your .m file, as well as add SKProductsRequestDelegate and SKPaymentTransactionObserver after your @interface declaration:

#import <StoreKit/StoreKit.h>

//put the name of your view controller in place of MyViewController
@interface MyViewController() <SKProductsRequestDelegate, SKPaymentTransactionObserver>

@end

@implementation MyViewController //the name of your view controller (same as above)
  //the code below will be added here
@end

and now add the following into your .m file, this part gets complicated, so I suggest that you read the comments in the code:

//If you have more than one in-app purchase, you can define both of
//of them here. So, for example, you could define both kRemoveAdsProductIdentifier
//and kBuyCurrencyProductIdentifier with their respective product ids
//
//for this example, we will only use one product

#define kRemoveAdsProductIdentifier @"put your product id (the one that we just made in App Store Connect) in here"

- (IBAction)tapsRemoveAds{
    NSLog(@"User requests to remove ads");

    if([SKPaymentQueue canMakePayments]){
        NSLog(@"User can make payments");
    
        //If you have more than one in-app purchase, and would like
        //to have the user purchase a different product, simply define 
        //another function and replace kRemoveAdsProductIdentifier with 
        //the identifier for the other product

        SKProductsRequest *productsRequest = [[SKProductsRequest alloc] initWithProductIdentifiers:[NSSet setWithObject:kRemoveAdsProductIdentifier]];
        productsRequest.delegate = self;
        [productsRequest start];
    
    }
    else{
        NSLog(@"User cannot make payments due to parental controls");
        //this is called the user cannot make payments, most likely due to parental controls
    }
}

- (void)productsRequest:(SKProductsRequest *)request didReceiveResponse:(SKProductsResponse *)response{
    SKProduct *validProduct = nil;
    int count = [response.products count];
    if(count > 0){
        validProduct = [response.products objectAtIndex:0];
        NSLog(@"Products Available!");
        [self purchase:validProduct];
    }
    else if(!validProduct){
        NSLog(@"No products available");
        //this is called if your product id is not valid, this shouldn't be called unless that happens.
    }
}

- (void)purchase:(SKProduct *)product{
    SKPayment *payment = [SKPayment paymentWithProduct:product];

    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] addPayment:payment];
}

- (IBAction) restore{
    //this is called when the user restores purchases, you should hook this up to a button
    [[SKPaymentQueue defaultQueue] addTransactionObserver:self];
    [[SKPaymentQueue defaultQueue] restoreCompletedTransactions];
}

- (void) paymentQueueRestoreCompletedTransactionsFinished:(SKPaymentQueue *)queue
{
    NSLog(@"received restored transactions: %i", queue.transactions.count);
    for(SKPaymentTransaction *transaction in queue.transactions){
        if(transaction.transactionState == SKPaymentTransactionStateRestored){
            //called when the user successfully restores a purchase
            NSLog(@"Transaction state -> Restored");

            //if you have more than one in-app purchase product,
            //you restore the correct product for the identifier.
            //For example, you could use
            //if(productID == kRemoveAdsProductIdentifier)
            //to get the product identifier for the
            //restored purchases, you can use
            //
            //NSString *productID = transaction.payment.productIdentifier;
            [self doRemoveAds];
            [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
            break;
        }
    }   
}

- (void)paymentQueue:(SKPaymentQueue *)queue updatedTransactions:(NSArray *)transactions{
    for(SKPaymentTransaction *transaction in transactions){
        //if you have multiple in app purchases in your app,
        //you can get the product identifier of this transaction
        //by using transaction.payment.productIdentifier
        //
        //then, check the identifier against the product IDs
        //that you have defined to check which product the user
        //just purchased            

        switch(transaction.transactionState){
            case SKPaymentTransactionStatePurchasing: NSLog(@"Transaction state -> Purchasing");
                //called when the user is in the process of purchasing, do not add any of your own code here.
                break;
            case SKPaymentTransactionStatePurchased:
            //this is called when the user has successfully purchased the package (Cha-Ching!)
                [self doRemoveAds]; //you can add your code for what you want to happen when the user buys the purchase here, for this tutorial we use removing ads
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                NSLog(@"Transaction state -> Purchased");
                break;
            case SKPaymentTransactionStateRestored:
                NSLog(@"Transaction state -> Restored");
                //add the same code as you did from SKPaymentTransactionStatePurchased here
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                break;
            case SKPaymentTransactionStateFailed:
                //called when the transaction does not finish
                if(transaction.error.code == SKErrorPaymentCancelled){
                    NSLog(@"Transaction state -> Cancelled");
                    //the user cancelled the payment ;(
                }
                [[SKPaymentQueue defaultQueue] finishTransaction:transaction];
                break;
        }
    }
}

Now you want to add your code for what will happen when the user finishes the transaction, for this tutorial, we use removing adds, you will have to add your own code for what happens when the banner view loads.

- (void)doRemoveAds{
    ADBannerView *banner;
    [banner setAlpha:0];
    areAdsRemoved = YES;
    removeAdsButton.hidden = YES;
    removeAdsButton.enabled = NO;
    [[NSUserDefaults standardUserDefaults] setBool:areAdsRemoved forKey:@"areAdsRemoved"];
    //use NSUserDefaults so that you can load whether or not they bought it
    //it would be better to use KeyChain access, or something more secure
    //to store the user data, because NSUserDefaults can be changed.
    //You're average downloader won't be able to change it very easily, but
    //it's still best to use something more secure than NSUserDefaults.
    //For the purpose of this tutorial, though, we're going to use NSUserDefaults
    [[NSUserDefaults standardUserDefaults] synchronize];
}

If you don't have ads in your application, you can use any other thing that you want. For example, we could make the color of the background blue. To do this we would want to use:

- (void)doRemoveAds{
    [self.view setBackgroundColor:[UIColor blueColor]];
    areAdsRemoved = YES
    //set the bool for whether or not they purchased it to YES, you could use your own boolean here, but you would have to declare it in your .h file

    [[NSUserDefaults standardUserDefaults] setBool:areAdsRemoved forKey:@"areAdsRemoved"];
    //use NSUserDefaults so that you can load wether or not they bought it
    [[NSUserDefaults standardUserDefaults] synchronize];
}

Now, somewhere in your viewDidLoad method, you're going to want to add the following code:

areAdsRemoved = [[NSUserDefaults standardUserDefaults] boolForKey:@"areAdsRemoved"];
[[NSUserDefaults standardUserDefaults] synchronize];
//this will load wether or not they bought the in-app purchase

if(areAdsRemoved){
    [self.view setBackgroundColor:[UIColor blueColor]];
    //if they did buy it, set the background to blue, if your using the code above to set the background to blue, if your removing ads, your going to have to make your own code here
}

Now that you have added all the code, go into your .xib or storyboard file, and add two buttons, one saying purchase, and the other saying restore. Hook up the tapsRemoveAds IBAction to the purchase button that you just made, and the restore IBAction to the restore button. The restore action will check if the user has previously purchased the in-app purchase, and give them the in-app purchase for free if they do not already have it.

Submitting for review

Next, go into App Store Connect, and click Users and Access then click the Sandbox Testers header, and then click the + symbol on the left where it says Testers. You can just put in random things for the first and last name, and the e-mail does not have to be real - you just have to be able to remember it. Put in a password (which you will have to remember) and fill in the rest of the info. I would recommend that you make the Date of Birth a date that would make the user 18 or older. App Store Territory HAS to be in the correct country. Next, log out of your existing iTunes account (you can log back in after this tutorial).

Now, run your application on your iOS device, if you try running it on the simulator, the purchase will always error, you HAVE TO run it on your iOS device. Once the app is running, tap the purchase button. When you are prompted to log into your iTunes account, log in as the test user that we just created. Next,when it asks you to confirm the purchase of 99¢ or whatever you set the price tier too, TAKE A SCREEN SNAPSHOT OF IT this is what your going to use for your screenshot for review on App Store Connect. Now cancel the payment.

Now, go to App Store Connect, then go to My Apps > the app you have the In-app purchase on > In-App Purchases. Then click your in-app purchase and click edit under the in-app purchase details. Once you've done that, import the photo that you just took on your iPhone into your computer, and upload that as the screenshot for review, then, in review notes, put your TEST USER e-mail and password. This will help apple in the review process.

After you have done this, go back onto the application on your iOS device, still logged in as the test user account, and click the purchase button. This time, confirm the payment Don't worry, this will NOT charge your account ANY money, test user accounts get all in-app purchases for free After you have confirmed the payment, make sure that what happens when the user buys your product actually happens. If it doesn't, then thats going to be an error with your doRemoveAds method. Again, I recommend using changing the background to blue for testing the in-app purchase, this should not be your actual in-app purchase though. If everything works and you're good to go! Just make sure to include the in-app purchase in your new binary when you upload it to App Store Connect!

Here are some common errors:

Logged: No Products Available

This could mean four things:

• You didn't put the correct in-app purchase ID in your code (for the identifier kRemoveAdsProductIdentifier in the above code
• You didn't clear your in-app purchase for sale on App Store Connect
• You didn't wait for the in-app purchase ID to be registered in App Store Connect. Wait a couple hours from creating the ID, and your problem should be resolved.
• You didn't complete filling your Agreements, Tax, and Banking info.

If it doesn't work the first time, don't get frustrated! Don't give up! It took me about 5 hours straight before I could get this working, and about 10 hours searching for the right code! If you use the code above exactly, it should work fine. Feel free to comment if you have any questions at all.

I hope this helps to all of those hoping to add an in-app purchase to their iOS application. Cheers!

To add a very important note on what Mark S. has mentioned in his post. In the specific SQL Script that has been mentioned in the question you can NEVER mention two different file groups for storing your data rows and the index data structure.

The reason why is due to the fact that the index being created in this case is a clustered Index on your primary key column. The clustered index data and the data rows of your table can NEVER be on different file groups.

So in case you have two file groups on your database e.g. PRIMARY and SECONDARY then below mentioned script will store your row data and clustered index data both on PRIMARY file group itself even though I've mentioned a different file group ([SECONDARY]) for the table data. More interestingly the script runs successfully as well (when I was expecting it to give an error as I had given two different file groups :P). SQL Server does the trick behind the scene silently and smartly.

CREATE TABLE [dbo].[be_Categories](
    [CategoryID] [uniqueidentifier] ROWGUIDCOL  NOT NULL CONSTRAINT [DF_be_Categories_CategoryID]  DEFAULT (newid()),
    [CategoryName] [nvarchar](50) NULL,
    [Description] [nvarchar](200) NULL,
    [ParentID] [uniqueidentifier] NULL,
 CONSTRAINT [PK_be_Categories] PRIMARY KEY CLUSTERED 
(
    [CategoryID] ASC
)WITH (PAD_INDEX  = OFF, STATISTICS_NORECOMPUTE  = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS  = ON, ALLOW_PAGE_LOCKS  = ON) ON [PRIMARY]
) ON [SECONDARY]
GO

NOTE: Your index can reside on a different file group ONLY if the index being created is non-clustered in nature.

The below script which creates a non-clustered index will get created on [SECONDARY] file group instead when the table data already resides on [PRIMARY] file group:

CREATE NONCLUSTERED INDEX [IX_Categories] ON [dbo].[be_Categories]
(
    [CategoryName] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, SORT_IN_TEMPDB = OFF, DROP_EXISTING = OFF, ONLINE = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [Secondary]
GO

You can get more information on how storing non-clustered indexes on a different file group can help your queries perform better. Here is one such link.

An AXD file is a file used by ASP.NET applications for handling embedded resource requests. It contains instructions for retrieving embedded resources, such as images, JavaScript (.JS) files, and.CSS files. AXD files are used for injecting resources into the client-side webpage and access them on the server in a standard way.

If there is a router doing NAT, especially a low end router with few resources, it will age the oldest TCP sessions first. To do this it sets the RST flag in the packet that effectively tells the receiving station to (very ungracefully) close the connection. this is done to save resources.

If your database is straightforward and simple, LINQ to SQL will do. If you need logical/abstracted entities on top of your tables, then go for Entity Framework.

It's not valid XHTML to have to have nested forms. However, you can use multiple submit buttons and use a serverside script to run different codes depending on which button the users has clicked.

With USB connected, on android device Settings > Developer options > Revoke USB debug authorizations USB Debug. Remove the USB and connect again, then "Allow USB debugging".

SELECT       `column`,
             COUNT(`column`) AS `value_occurrence` 
    FROM     `my_table`
    GROUP BY `column`
    ORDER BY `value_occurrence` DESC
    LIMIT    1;

Replace column and my_table. Increase 1 if you want to see the N most common values of the column.

I had the same, eclipse polluted files even with one line change. Solution: Eclipse git settings -> Add Entry: Key: core.autocrlf Values: true

Expanding on what Mark Elliot said earlier, the easiest way to get the size of a 2D array given that each array in the array of arrays is of the same size is:

array.length * array[0].length

Subtract '0' like this:

int i = c - '0';

The C Standard guarantees each digit in the range '0'..'9' is one greater than its previous digit (in section 5.2.1/3 of the C99 draft). The same counts for C++.

The solution by Daniel Fanjul looked promissing. I was able to find that blob file and extracted it ("git fsck --full --no-dangling", "git cat-file -t {hash}", "git show {hash} > file.tmp") but when I tried to update pack file with "git hash-object -w file.tmp", it displayed correct hash BUT the error remained.

So I decided to try different approach. I could simply delete local repository and download everything from remote but some branches in local repository were 8 commits ahead and I did not want to lose those changes. Since that tiny, 6kb mp3 file, I decided to delete it completely. I tried many ways but the best was from here: https://itextpdf.com/en/blog/technical-notes/how-completely-remove-file-git-repository

I got the file name by running this command "git rev-list --objects --all | grep {hash}". Then I did a backup (strongly recommend to do so because I failed 3 times) and then run the command:

"java -jar bfg.jar --delete-files {filename} --no-blob-protection ."

You can get bfg.jar file from here https://rtyley.github.io/bfg-repo-cleaner/ so according to documentation I should run this command next:

"git reflog expire --expire=now --all && git gc --prune=now --aggressive"

When I did so, I got errors on last step. So I recovered everything from backup and this time, after removing file, I checkout to the branch (which was causing that error), then check out back to main and only after run the command one after each other:

"git reflog expire --expire=now --all" "git gc --prune=now --aggressive"

Then I added my file back to its location and comit. However, since many local commits were changed, I was not able to push anything to server. So I backup everything on server (in case I screw it), check out to the branch which was affected and run the command "git push --force".

What I understood from this case? GIT is great but so senstive... I should have an option to simply disregard one f... 6kb file I know what I am doing. I have no clude why "git hash-object -w" did not work either =( Lessons learnt, push all commits, do not wait, do backup of repository time to time. Also I know how to remove files from repository, if I ever need =)

I hope this saves someone's time

There are many ways, for example:

Method one:

public string test()
{
string ErrMsg = string.Empty;
 try
    {
        int num = int.Parse("gagw");
    }
    catch (Exception ex)
    {
        ErrMsg = ex.Message;
    }
return ErrMsg
}

Method two:

public void test(ref string ErrMsg )
{

    ErrMsg = string.Empty;
     try
        {
            int num = int.Parse("gagw");
        }
        catch (Exception ex)
        {
            ErrMsg = ex.Message;
        }
}

This answer is wrriten in Kotlin, but can easily be translated to Java.

If your arraylist's size is within a fixed small range, then this is a great solution.

var duplicateDetected = false
    if(arrList.size > 1){
        for(i in 0 until arrList.size){
            for(j in 0 until arrList.size){
                if(i != j && arrList.get(i) == arrList.get(j)){
                    duplicateDetected = true
                }
            }
        }
    }

I was facing the same problem. The problem is with the onclick function. There should not be any problem with the function getData. It worked by making the onclick function return false.

<form method="POST">
    <button name="data" onclick="getData(); return false">Click</button>
</form>

In addition to existing answers I'd like to add that you can also have a class instance available app-wide which holds user-related data like UserID etc.

It may be useful for refactoring e.g. you don't want to fetch UserID in every controller action and declare an extra UserID parameter in every method related to Service Layer.

I've done a research and here's my post.

You just extend your class which you derive from DbContext by adding UserId property (or implement a custom Session class which has this property).

At filter level you can fetch your class instance and set UserId value.

After that wherever you inject your instance - it will have the necessary data (lifetime must be per request, so you register it using AddScoped method).

Working example:

public class AppInitializationFilter : IAsyncActionFilter
{
    private DBContextWithUserAuditing _dbContext;

    public AppInitializationFilter(
        DBContextWithUserAuditing dbContext
        )
    {
        _dbContext = dbContext;
    }

    public async Task OnActionExecutionAsync(
        ActionExecutingContext context,
        ActionExecutionDelegate next
        )
    {
        string userId = null;
        int? tenantId = null;

        var claimsIdentity = (ClaimsIdentity)context.HttpContext.User.Identity;

        var userIdClaim = claimsIdentity.Claims.SingleOrDefault(c => c.Type == ClaimTypes.NameIdentifier);
        if (userIdClaim != null)
        {
            userId = userIdClaim.Value;
        }

        var tenantIdClaim = claimsIdentity.Claims.SingleOrDefault(c => c.Type == CustomClaims.TenantId);
        if (tenantIdClaim != null)
        {
            tenantId = !string.IsNullOrEmpty(tenantIdClaim.Value) ? int.Parse(tenantIdClaim.Value) : (int?)null;
        }

        _dbContext.UserId = userId;
        _dbContext.TenantId = tenantId;

        var resultContext = await next();
    }
}

For more information see my answer.

  let timer;
  let isDoubleClick = false;

  const handleClick = () => {
    if(!isDoubleClick) {
      isDoubleClick = true;
      timer = setTimeout(() => {
        isDoubleClick = false;
        props.onClick();
      }, 200);
    } else {
      clearTimeout(timer);
      props.onDoubleClick();
    }
  }

return <div onClick={handleClick}></div>

    /**
     * @author ALGO
     */
    import java.io.File;
    import java.io.FileOutputStream;
    import java.io.IOException;
    import java.io.RandomAccessFile;
    import java.util.UUID;

    import android.content.Context;

    public class Util {
        // ===========================================================
        //
        // ===========================================================

        private static final String INSTALLATION = "INSTALLATION";

        public synchronized static boolean isFirstLaunch(Context context) {
            String sID = null;
            boolean launchFlag = false;
            if (sID == null) {
                File installation = new File(context.getFilesDir(), INSTALLATION);
                try {
                    if (!installation.exists()) {

                        writeInstallationFile(installation);
                    }
                    sID = readInstallationFile(installation);
launchFlag = true;
                } catch (Exception e) {
                    throw new RuntimeException(e);
                }
            }
            return launchFlag;
        }

        private static String readInstallationFile(File installation) throws IOException {
            RandomAccessFile f = new RandomAccessFile(installation, "r");// read only mode
            byte[] bytes = new byte[(int) f.length()];
            f.readFully(bytes);
            f.close();

            return new String(bytes);
        }

        private static void writeInstallationFile(File installation) throws IOException {
            FileOutputStream out = new FileOutputStream(installation);
            String id = UUID.randomUUID().toString();
            out.write(id.getBytes());
            out.close();
        }
    }

> Usage (in class extending android.app.Activity)

Util.isFirstLaunch(this);

You could use the highlight effect in jQuery UI to achieve the same, I guess.

Some DBMSs support the FROM (SELECT ...) AS alias_name syntax.

Think of your two original queries as temporary tables. You can query them like so:

SELECT t1.Activity, t1."Total Amount 2009", t2."Total Amount 2008"
FROM (query1) as t1, (query2) as t2
WHERE t1.Activity = t2.Activity

J2ME Map Route Provider

maps.google.com has a navigation service which can provide you route information in KML format.

To get kml file we need to form url with start and destination locations:

public static String getUrl(double fromLat, double fromLon,
                            double toLat, double toLon) {// connect to map web service
    StringBuffer urlString = new StringBuffer();
    urlString.append("http://maps.google.com/maps?f=d&hl=en");
    urlString.append("&saddr=");// from
    urlString.append(Double.toString(fromLat));
    urlString.append(",");
    urlString.append(Double.toString(fromLon));
    urlString.append("&daddr=");// to
    urlString.append(Double.toString(toLat));
    urlString.append(",");
    urlString.append(Double.toString(toLon));
    urlString.append("&ie=UTF8&0&om=0&output=kml");
    return urlString.toString();
}

Next you will need to parse xml (implemented with SAXParser) and fill data structures:

public class Point {
    String mName;
    String mDescription;
    String mIconUrl;
    double mLatitude;
    double mLongitude;
}

public class Road {
    public String mName;
    public String mDescription;
    public int mColor;
    public int mWidth;
    public double[][] mRoute = new double[][] {};
    public Point[] mPoints = new Point[] {};
}

Network connection is implemented in different ways on Android and Blackberry, so you will have to first form url:

 public static String getUrl(double fromLat, double fromLon,
     double toLat, double toLon)

then create connection with this url and get InputStream.
Then pass this InputStream and get parsed data structure:

 public static Road getRoute(InputStream is) 

Full source code RoadProvider.java

BlackBerry

class MapPathScreen extends MainScreen {
    MapControl map;
    Road mRoad = new Road();
    public MapPathScreen() {
        double fromLat = 49.85, fromLon = 24.016667;
        double toLat = 50.45, toLon = 30.523333;
        String url = RoadProvider.getUrl(fromLat, fromLon, toLat, toLon);
        InputStream is = getConnection(url);
        mRoad = RoadProvider.getRoute(is);
        map = new MapControl();
        add(new LabelField(mRoad.mName));
        add(new LabelField(mRoad.mDescription));
        add(map);
    }
    protected void onUiEngineAttached(boolean attached) {
        super.onUiEngineAttached(attached);
        if (attached) {
            map.drawPath(mRoad);
        }
    }
    private InputStream getConnection(String url) {
        HttpConnection urlConnection = null;
        InputStream is = null;
        try {
            urlConnection = (HttpConnection) Connector.open(url);
            urlConnection.setRequestMethod("GET");
            is = urlConnection.openInputStream();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return is;
    }
}

See full code on J2MEMapRouteBlackBerryEx on Google Code

Android

public class MapRouteActivity extends MapActivity {
    LinearLayout linearLayout;
    MapView mapView;
    private Road mRoad;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        mapView = (MapView) findViewById(R.id.mapview);
        mapView.setBuiltInZoomControls(true);
        new Thread() {
            @Override
            public void run() {
                double fromLat = 49.85, fromLon = 24.016667;
                double toLat = 50.45, toLon = 30.523333;
                String url = RoadProvider
                        .getUrl(fromLat, fromLon, toLat, toLon);
                InputStream is = getConnection(url);
                mRoad = RoadProvider.getRoute(is);
                mHandler.sendEmptyMessage(0);
            }
        }.start();
    }

    Handler mHandler = new Handler() {
        public void handleMessage(android.os.Message msg) {
            TextView textView = (TextView) findViewById(R.id.description);
            textView.setText(mRoad.mName + " " + mRoad.mDescription);
            MapOverlay mapOverlay = new MapOverlay(mRoad, mapView);
            List<Overlay> listOfOverlays = mapView.getOverlays();
            listOfOverlays.clear();
            listOfOverlays.add(mapOverlay);
            mapView.invalidate();
        };
    };

    private InputStream getConnection(String url) {
        InputStream is = null;
        try {
            URLConnection conn = new URL(url).openConnection();
            is = conn.getInputStream();
        } catch (MalformedURLException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }
        return is;
    }
    @Override
    protected boolean isRouteDisplayed() {
        return false;
    }
}

See full code on J2MEMapRouteAndroidEx on Google Code

I have one solution below which does work but more important than that solution is a few comments on other approaches. First, a good solution shouldn't require that one loop through the sub-iterators in order. If I run

g = paged_iter(list(range(50)), 11))
i0 = next(g)
i1 = next(g)
list(i1)
list(i0)

The appropriate output for the last command is

 [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

not

 []

As most of the itertools based solutions here return. This isn't just the usual boring restriction about accessing iterators in order. Imagine a consumer trying to clean up poorly entered data which reversed the appropriate order of blocks of 5, i.e., the data looks like [B5, A5, D5, C5] and should look like [A5, B5, C5, D5] (where A5 is just five elements not a sublist). This consumer would look at the claimed behavior of the grouping function and not hesitate to write a loop like

i = 0
out = []
for it in paged_iter(data,5)
    if (i % 2 == 0):
         swapped = it
    else: 
         out += list(it)
         out += list(swapped)
    i = i + 1

This will produce mysteriously wrong results if you sneakily assume that sub-iterators are always fully used in order. It gets even worse if you want to interleave elements from the chunks.

Second, a decent number of the suggested solutions implicitly rely on the fact that iterators have a deterministic order (they don't e.g. set) and while some of the solutions using islice may be ok it worries me.

Third, the itertools grouper approach works but the recipe relies on internal behavior of the zip_longest (or zip) functions that isn't part of their published behavior. In particular, the grouper function only works because in zip_longest(i0...in) the next function is always called in order next(i0), next(i1), ... next(in) before starting over. As grouper passes n copies of the same iterator object it relies on this behavior.

Finally, while the solution below can be improved if you make the assumption criticized above that sub-iterators are accessed in order and fully perused without this assumption one MUST implicitly (via call chain) or explicitly (via deques or other data structure) store elements for each subiterator somewhere. So don't bother wasting time (as I did) assuming one could get around this with some clever trick.

def paged_iter(iterat, n):
    itr = iter(iterat)
    deq = None
    try:
        while(True):
            deq = collections.deque(maxlen=n)
            for q in range(n):
                deq.append(next(itr))
            yield (i for i in deq)
    except StopIteration:
        yield (i for i in deq)

Some people are asking about doing this in code and not getting an answer.

After spending many hours searching I found a very simple method, I found no example and so I share mine here which works with images. (mine was a .gif)

Summary:

It returns a BitmapFrame which ImageSource "destinations" seem to like.

Use:

doGetImageSourceFromResource ("[YourAssemblyNameHere]", "[YourResourceNameHere]");

Method:

static internal ImageSource doGetImageSourceFromResource(string psAssemblyName, string psResourceName)
{
    Uri oUri = new Uri("pack://application:,,,/" +psAssemblyName +";component/" +psResourceName, UriKind.RelativeOrAbsolute);
    return BitmapFrame.Create(oUri);
}

Learnings:

From my experiences the pack string is not the issue, check your streams and especially if reading it the first time has set the pointer to the end of the file and you need to re-set it to zero before reading again.

I hope this saves you the many hours I wish this piece had for me!

In simple words, strace traces all system calls issued by a program along with their return codes. Think things such as file/socket operations and a lot more obscure ones.

It is most useful if you have some working knowledge of C since here system calls would more accurately stand for standard C library calls.

Let's say your program is /usr/local/bin/cough. Simply use:

strace /usr/local/bin/cough <any required argument for cough here>

or

strace -o <out_file> /usr/local/bin/cough <any required argument for cough here>

to write into 'out_file'.

All strace output will go to stderr (beware, the sheer volume of it often asks for a redirection to a file). In the simplest cases, your program will abort with an error and you'll be able to see what where its last interactions with the OS in strace output.

More information should be available with:

man strace

The Gantt charts given by Hifzan and Raja are for FCFS algorithms.

With an SJF algorithm, processes can be interrupted. That is, every process doesn't necessarily execute straight through their given burst time.

P3|P2|P4|P3|P5|P1|P5

1|2|3|5|7|8|11|14

P3 arrives at 1ms, then is interrupted by P2 and P4 since they both have smaller burst times, and then P3 resumes. P5 starts executing next, then is interrupted by P1 since P1's burst time is smaller than P5's. You must note the arrival times and be careful. These problems can be trickier than how they appear at-first-glance.

EDIT: This applies only to Preemptive SJF algorithms. A plain SJF algorithm is non-preemptive, meaning it does not interrupt a process.

Jon skeet said:

The documentation seems pretty clear to me: "Base implementation of HttpClient that also implements Closeable" - HttpClient is an interface; CloseableHttpClient is an abstract class, but because it implements AutoCloseable you can use it in a try-with-resources statement.

But then Jules asked:

@JonSkeet That much is clear, but how important is it to close HttpClient instances? If it's important, why is the close() method not part of the basic interface?

Answer for Jules

close need not be part of basic interface since underlying connection is released back to the connection manager automatically after every execute

To accommodate the try-with-resources statement. It is mandatory to implement Closeable. Hence included it in CloseableHttpClient.

Note:

close method in AbstractHttpClient which is extending CloseableHttpClient is deprecated, I was not able to find the source code for that.

For Maven based projects you need a dependency.

<dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.38</version>
</dependency>

You can use the Entry<U,V> class that HashMap uses but you'll be stuck with its semantics of getKey and getValue:

List<Entry<Float,Short>> pairList = //...

My preference would be to create your own simple Pair class:

public class Pair<L,R> {
    private L l;
    private R r;
    public Pair(L l, R r){
        this.l = l;
        this.r = r;
    }
    public L getL(){ return l; }
    public R getR(){ return r; }
    public void setL(L l){ this.l = l; }
    public void setR(R r){ this.r = r; }
}

Then of course make a List using this new class, e.g.:

List<Pair<Float,Short>> pairList = new ArrayList<Pair<Float,Short>>();

You can also always make a Lists of Lists, but it becomes difficult to enforce sizing (that you have only pairs) and you would be required, as with arrays, to have consistent typing.

This is a subjective opinion, but I think a text editor shouldn't do everything and the kitchen sink. I prefer lightweight flexible and powerful (in their specialized fields) editors. Although being mostly a Windows user, I like the Unix philosophy of having lot of specialized tools that you can pipe together (like the UnxUtils) rather than a monster doing everything, but not necessarily as you would like it!

Find in files is on the border of these extra features, but useful when you can double-click on a found line to open the file at the right line. Note that initially, in SciTE it was just a Tools call to grep or equivalent!
FTP is very close to off topic, although it can be seen as an extended open/save dialog.
Replace in files is too much IMO: it is dangerous (you can mess lot of files at once) if you have no preview, etc. I would rather use a specialized tool I chose, perhaps among those in Multi line search and replace tool.

To answer the question, looking at N++, I see a Run menu where you can launch any tool, with assignment of a name and shortcut key. I see also Plugins > NppExec, which seems able to launch stuff like sed (not tried it).

The correct thing to do is use the 'string-escape' code to decode the string.

>>> myString = "spam\\neggs"
>>> decoded_string = bytes(myString, "utf-8").decode("unicode_escape") # python3 
>>> decoded_string = myString.decode('string_escape') # python2
>>> print(decoded_string)
spam
eggs

Don't use the AST or eval. Using the string codecs is much safer.

OSX 10.9, if you dont bother about signed application you might just change

/Applications/IntelliJ\ IDEA\ 12\ CE.app/bin/idea.vmoptions

Of course slideDown and slideUp don't do what you want, you said you want it to be left/right, not top/down.

If your edit to your question adding the jquery-ui tag means you're using jQuery UI, I'd go with nnnnnn's solution, using jQuery UI's slide effect.

If not:

Assuming the menu starts out visible (edit: oops, I see that isn't a valid assumption; see note below), if you want it to slide out to the left and then later slide back in from the left, you could do this: Live Example | Live Source

$(document).ready(function() {
    // Hide menu once we know its width
    $('#showmenu').click(function() {
        var $menu = $('.menu');
        if ($menu.is(':visible')) {
            // Slide away
            $menu.animate({left: -($menu.outerWidth() + 10)}, function() {
                $menu.hide();
            });
        }
        else {
            // Slide in
            $menu.show().animate({left: 0});
        }
    });
});

You'll need to put position: relative on the menu element.

Note that I replaced your toggle with click, because that form of toggle was removed from jQuery.

If you want the menu to start out hidden, you can adjust the above. You want to know the element's width, basically, when putting it off-page.

This version doesn't care whether the menu is initially-visible or not: Live Copy | Live Source

<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.1/jquery.min.js"></script>
<meta charset=utf-8 />
<title>JS Bin</title>
</head>
<body>
<div id="showmenu">Click Here</div>
<div class="menu" style="display: none; position: relative;"><ul><li>Button1</li><li>Button2</li><li>Button3</li></ul></div>
  <script>
    $(document).ready(function() {
        var first = true;

        // Hide menu once we know its width
        $('#showmenu').click(function() {
            var $menu = $('.menu');
            if ($menu.is(':visible')) {
                // Slide away
                $menu.animate({left: -($menu.outerWidth() + 10)}, function() {
                    $menu.hide();
                });
            }
            else {
                // Slide in
                $menu.show().css("left", -($menu.outerWidth() + 10)).animate({left: 0});
            }
        });
    });
  </script>
</body>
</html>

To Truncate:

hive -e "TRUNCATE TABLE IF EXISTS $tablename"

To Drop:

hive -e "Drop TABLE IF EXISTS $tablename"

If you are using the Contact Form 7 update and the latest version (version 5.1.x), you will need to install, setup Google reCAPTCHA v3 to use.

by default you get Google reCAPTCHA logo displayed on every page on the bottom right of the screen. This is according to our assessment is creating a bad experience for users. And your website, blog will slow down a bit (reflect by PageSpeed Score), by your website will have to load additional 1 JavaScript library from Google to display this badge.

You can hide Google reCAPTCHA v3 from CF7 (only show it when necessary) by following these steps:

First, you open the functions.php file of your theme (using File Manager or FTP Client). This file is locate in: /wp-content/themes/your-theme/ and add the following snippet (we’re using this code to remove reCAPTCHA box on every page):

    remove_action( 'wp_enqueue_scripts', 'wpcf7_recaptcha_enqueue_scripts' );

Next, you will add this snippet in the page you want it to display Google reCAPTCHA (contact page, login, register page …):

if ( function_exists( 'wpcf7_enqueue_scripts' ) ) {
    add_action( 'wp_enqueue_scripts', 'wpcf7_recaptcha_enqueue_scripts', 10, 0 );
}

Refer on OIW Blog - How To Remove Google reCAPTCHA Logo from Contact Form 7 in WordPress (Hide reCAPTCHA badge)

I use ConEmu (strongly recommended on Windows) where I have a task for starting Git Bash like

Note the button "Startup dir..." in the bottom. It adds a -new_console:d:<path> to the startup command of the Git Bash. Make it point to wherever you like

source is a bash built-in command so to execute source command, you can log in as Root.

sudo -s source ./filename.sh

jQuery lib has to be loaded first. In my case, i was loading bootstrap lib first, also tried tag with target and firing a click trigger. But the main issue was - jquery has to be loaded first.

So, answering my own question here. We ultimately determined that we were seeing 502 and 503 errors in the load balancer due to Tomcat threads timing out. In the short term we increased the timeout. In the longer term, we fixed the app problems that were causing the timeouts in the first place. Why Tomcat timeouts were being perceived as 502 and 503 errors at the load balancer is still a bit of a mystery.

-l (that's a lower-case L).

The best way is probably trying to open it, using just opendir() for instance.

Note that it's always best to try to use a filesystem resource, and handling any errors occuring because it doesn't exist, rather than just checking and then later trying. There is an obvious race condition in the latter approach.

Try this:

first, *rest = ex.split(/, /)

Now first will be the first value, rest will be the rest of the array.

Well I'm 99% percent positive that you cannot just go and change the background color of a UIButton. Instead you have to go and change the background images yourself which I think is a pain. I'm amazed that I had to do this.

If I'm wrong or if theres a better way without having to set background images please let me know

[random setBackgroundImage:[UIImage imageNamed:@"toggleoff.png"] forState:UIControlStateNormal];
    [random setTitleColor:[UIColor darkTextColor] forState:UIControlStateNormal];


[random setBackgroundImage:[UIImage imageNamed:@"toggleon.png"] forState:UIControlStateNormal];
    [random setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];

Following @Tobu answer and @mipadi comment, in a more pythonic way, if not interested in the created flag, I would use:

customer.source, _ = Source.objects.get_or_create(name="Website")

"In the default mode, Dot (.) matches any character except a newline. If the DOTALL flag has been specified, this matches any character including a newline." (python Doc)

So, if you want to evaluate dot literaly, I think you should put it in square brackets:

>>> p = re.compile(r'\b(\w+[.]\w+)')
>>> resp = p.search("blah blah blah [email protected] blah blah")
>>> resp.group()
'test.this'

         OutlineButton(
              onPressed: () {
                logInButtonPressed(context);
              },
              child: Container(
                width: MediaQuery.of(context).size.width / 2,
                child: Text(
                  “Log in”,
                  textAlign: TextAlign.center,
                ),
              ),
            )

Something like this works for me.

The other answer requires that you enter the Administrator account password. Also, running under an account in the Administrator Group is not the same as run as administrator see: UAC on Wikipedia

Windows 7 Instructions

In order to run as an Administrator, create a shortcut for the batch file.

1. Right click the batch file and click copy
2. Navigate to where you want the shortcut
3. Right click the background of the directory
4. Select Paste Shortcut

Then you can set the shortcut to run as administrator:

1. Right click the shortcut
2. Choose Properties
3. In the Shortcut tab, click Advanced
4. Select the checkbox "Run as administrator"
5. Click OK, OK

Now when you double click the shortcut it will prompt you for UAC confirmation and then Run as administrator (which as I said above is different than running under an account in the Administrator Group)

Check the screenshot below

Note: When you do so to Run As Administrator, the current directory (path) will not be same as the bat file. This can cause some problems in many cases that the bat file refer to relative files beside it. For example, in my Windows 7 the cur dir will be SYSTEM32 instead of bat file location! To workaround it, you should use

cd "%~dp0"

or better

pushd "%~dp0"

to ensure cur dir is at the same path where the bat file is.

@Adrien's answer is not working. It gives an ORA-01791.

The correct answer (for the question that is asked) should be:

select id
from 
 (SELECT id, 2 as ordered FROM a -- returns 1,4,2,3
  UNION ALL
  SELECT id, 1 as ordered FROM b -- returns 2,1
  )
group by id
order by min(ordered)

Explanation:

1. The "UNION ALL" is combining the 2 sets. A "UNION" is wastefull because the 2 sets could not be the same, because the ordered field is different.
2. The "group by" is then eliminating duplicates
3. The "order by min (ordered)" is assuring the elements of table b are first

This solves all the cases, even when table b has more or different elements then table a

To be sure I need to see how you're rendering the form. The initial value is only used in a unbound form, if it's bound and a value for that field is not included nothing will be selected.

No need to add a containing div.

The default for the css "align-items" property is "stretch" which is what is causing your images to be stretched to its full original height. Setting the css "align-items" property to "flex-start" fixes your issue.

.slider {
    display: flex;
    align-items: flex-start;  /* ADD THIS! */
}

All modal/lightbox javascript-based systems use an overflow when displaying the modal/lightbox, on html tag or body tag.

When lightbox is show, the js push a overflow hidden on html or body tag. When lightbox is hidden, some remove the hidden other push a overflow auto on html or body tag.

Developers who work on Mac, do not see the problem of the scrollbar.

Just replace the hidden by an unset not to see the content slipping under the modal of the removal of the scrollbar.

Lightbox open/show:

<html style="overflow: unset;"></html>

Lightbox close/hide:

<html style="overflow: auto;"></html>

I have a way to do it using a simply filename.write() operation. It works fine for me, but I'm dealing with arrays having ~1500 data elements.

I basically just have for loops to iterate through the file and write it to the output destination line-by-line in a csv style output.

import numpy as np

trial = np.genfromtxt("/extension/file.txt", dtype = str, delimiter = ",")

with open("/extension/file.txt", "w") as f:
    for x in xrange(len(trial[:,1])):
        for y in range(num_of_columns):
            if y < num_of_columns-2:
                f.write(trial[x][y] + ",")
            elif y == num_of_columns-1:
                f.write(trial[x][y])
        f.write("\n")

The if and elif statement are used to add commas between the data elements. For whatever reason, these get stripped out when reading the file in as an nd array. My goal was to output the file as a csv, so this method helps to handle that.

Hope this helps!

I think your issue may be in the url pattern. Changing

<servlet-mapping>
    <servlet-name>Register</servlet-name>
    <url-pattern>/Register</url-pattern>
</servlet-mapping>

and

<form action="/Register" method="post">

may fix your problem

Your error looks like you are duplicating an already existing Primary Key in your DB. You should modify your sql code to implement its own primary key by using something like the IDENTITY keyword.

CREATE TABLE [DB] (
    [DBId] bigint NOT NULL IDENTITY,
    ...

    CONSTRAINT [DB_PK] PRIMARY KEY ([DB] ASC),

); 

Edit 2014/10: by popular demand I'm maintaining and moving this to GitHub. Please check cprcrack/VideoEnabledWebView for the last version. Will keep this answer only for reference.

Edit 2014/01: improved example usage to include the nonVideoLayout, videoLayout, and videoLoading views, for those users requesting more example code for better understading.

Edit 2013/12: some bug fixes related to Sony Xperia devices compatibility, but which in fact affected all devices.

Edit 2013/11: after the release of Android 4.4 KitKat (API level 19) with its new Chromium webview, I had to work hard again. Several improvements were made. You should update to this new version. I release this source under WTFPL.

Edit 2013/04: after 1 week of hard work, I finally have achieved everything I needed. I think this two generic classes that I have created can solve all you problems.

VideoEnabledWebChromeClient can be used alone if you do not require the functionality that VideoEnabledWebView adds. But VideoEnabledWebView must always rely on a VideoEnabledWebChromeClient. Please read all the comments of the both classes carefully.

VideoEnabledWebChromeClient class

import android.media.MediaPlayer;
import android.media.MediaPlayer.OnCompletionListener;
import android.media.MediaPlayer.OnErrorListener;
import android.media.MediaPlayer.OnPreparedListener;
import android.view.SurfaceView;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.webkit.WebChromeClient;
import android.widget.FrameLayout;

/**
 * This class serves as a WebChromeClient to be set to a WebView, allowing it to play video.
 * Video will play differently depending on target API level (in-line, fullscreen, or both).
 *
 * It has been tested with the following video classes:
 * - android.widget.VideoView (typically API level <11)
 * - android.webkit.HTML5VideoFullScreen$VideoSurfaceView/VideoTextureView (typically API level 11-18)
 * - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView (typically API level 19+)
 * 
 * Important notes:
 * - For API level 11+, android:hardwareAccelerated="true" must be set in the application manifest.
 * - The invoking activity must call VideoEnabledWebChromeClient's onBackPressed() inside of its own onBackPressed().
 * - Tested in Android API levels 8-19. Only tested on http://m.youtube.com.
 *
 * @author Cristian Perez (http://cpr.name)
 *
 */
public class VideoEnabledWebChromeClient extends WebChromeClient implements OnPreparedListener, OnCompletionListener, OnErrorListener
{
    public interface ToggledFullscreenCallback
    {
        public void toggledFullscreen(boolean fullscreen);
    }

    private View activityNonVideoView;
    private ViewGroup activityVideoView;
    private View loadingView;
    private VideoEnabledWebView webView;

    private boolean isVideoFullscreen; // Indicates if the video is being displayed using a custom view (typically full-screen)
    private FrameLayout videoViewContainer;
    private CustomViewCallback videoViewCallback;

    private ToggledFullscreenCallback toggledFullscreenCallback;

    /**
     * Never use this constructor alone.
     * This constructor allows this class to be defined as an inline inner class in which the user can override methods
     */
    @SuppressWarnings("unused")
    public VideoEnabledWebChromeClient()
    {
    }

    /**
     * Builds a video enabled WebChromeClient.
     * @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
     * @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
     */
    @SuppressWarnings("unused")
    public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView)
    {
        this.activityNonVideoView = activityNonVideoView;
        this.activityVideoView = activityVideoView;
        this.loadingView = null;
        this.webView = null;
        this.isVideoFullscreen = false;
    }

    /**
     * Builds a video enabled WebChromeClient.
     * @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
     * @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
     * @param loadingView A View to be shown while the video is loading (typically only used in API level <11). Must be already inflated and without a parent view.
     */
    @SuppressWarnings("unused")
    public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView, View loadingView)
    {
        this.activityNonVideoView = activityNonVideoView;
        this.activityVideoView = activityVideoView;
        this.loadingView = loadingView;
        this.webView = null;
        this.isVideoFullscreen = false;
    }

    /**
     * Builds a video enabled WebChromeClient.
     * @param activityNonVideoView A View in the activity's layout that contains every other view that should be hidden when the video goes full-screen.
     * @param activityVideoView A ViewGroup in the activity's layout that will display the video. Typically you would like this to fill the whole layout.
     * @param loadingView A View to be shown while the video is loading (typically only used in API level <11). Must be already inflated and without a parent view.
     * @param webView The owner VideoEnabledWebView. Passing it will enable the VideoEnabledWebChromeClient to detect the HTML5 video ended event and exit full-screen.
     * Note: The web page must only contain one video tag in order for the HTML5 video ended event to work. This could be improved if needed (see Javascript code).
     */
    public VideoEnabledWebChromeClient(View activityNonVideoView, ViewGroup activityVideoView, View loadingView, VideoEnabledWebView webView)
    {
        this.activityNonVideoView = activityNonVideoView;
        this.activityVideoView = activityVideoView;
        this.loadingView = loadingView;
        this.webView = webView;
        this.isVideoFullscreen = false;
    }

    /**
     * Indicates if the video is being displayed using a custom view (typically full-screen)
     * @return true it the video is being displayed using a custom view (typically full-screen)
     */
    public boolean isVideoFullscreen()
    {
        return isVideoFullscreen;
    }

    /**
     * Set a callback that will be fired when the video starts or finishes displaying using a custom view (typically full-screen)
     * @param callback A VideoEnabledWebChromeClient.ToggledFullscreenCallback callback
     */
    public void setOnToggledFullscreen(ToggledFullscreenCallback callback)
    {
        this.toggledFullscreenCallback = callback;
    }

    @Override
    public void onShowCustomView(View view, CustomViewCallback callback)
    {
        if (view instanceof FrameLayout)
        {
            // A video wants to be shown
            FrameLayout frameLayout = (FrameLayout) view;
            View focusedChild = frameLayout.getFocusedChild();

            // Save video related variables
            this.isVideoFullscreen = true;
            this.videoViewContainer = frameLayout;
            this.videoViewCallback = callback;

            // Hide the non-video view, add the video view, and show it
            activityNonVideoView.setVisibility(View.INVISIBLE);
            activityVideoView.addView(videoViewContainer, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));
            activityVideoView.setVisibility(View.VISIBLE);

            if (focusedChild instanceof android.widget.VideoView)
            {
                // android.widget.VideoView (typically API level <11)
                android.widget.VideoView videoView = (android.widget.VideoView) focusedChild;

                // Handle all the required events
                videoView.setOnPreparedListener(this);
                videoView.setOnCompletionListener(this);
                videoView.setOnErrorListener(this);
            }
            else
            {
                // Other classes, including:
                // - android.webkit.HTML5VideoFullScreen$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 11-18)
                // - android.webkit.HTML5VideoFullScreen$VideoTextureView, which inherits from android.view.TextureView (typically API level 11-18)
                // - com.android.org.chromium.content.browser.ContentVideoView$VideoSurfaceView, which inherits from android.view.SurfaceView (typically API level 19+)

                // Handle HTML5 video ended event only if the class is a SurfaceView
                // Test case: TextureView of Sony Xperia T API level 16 doesn't work fullscreen when loading the javascript below
                if (webView != null && webView.getSettings().getJavaScriptEnabled() && focusedChild instanceof SurfaceView)
                {
                    // Run javascript code that detects the video end and notifies the Javascript interface
                    String js = "javascript:";
                    js += "var _ytrp_html5_video_last;";
                    js += "var _ytrp_html5_video = document.getElementsByTagName('video')[0];";
                    js += "if (_ytrp_html5_video != undefined && _ytrp_html5_video != _ytrp_html5_video_last) {";
                    {
                        js += "_ytrp_html5_video_last = _ytrp_html5_video;";
                        js += "function _ytrp_html5_video_ended() {";
                        {
                            js += "_VideoEnabledWebView.notifyVideoEnd();"; // Must match Javascript interface name and method of VideoEnableWebView
                        }
                        js += "}";
                        js += "_ytrp_html5_video.addEventListener('ended', _ytrp_html5_video_ended);";
                    }
                    js += "}";
                    webView.loadUrl(js);
                }
            }

            // Notify full-screen change
            if (toggledFullscreenCallback != null)
            {
                toggledFullscreenCallback.toggledFullscreen(true);
            }
        }
    }

    @Override @SuppressWarnings("deprecation")
    public void onShowCustomView(View view, int requestedOrientation, CustomViewCallback callback) // Available in API level 14+, deprecated in API level 18+
    {
        onShowCustomView(view, callback);
    }

    @Override
    public void onHideCustomView()
    {
        // This method should be manually called on video end in all cases because it's not always called automatically.
        // This method must be manually called on back key press (from this class' onBackPressed() method).

        if (isVideoFullscreen)
        {
            // Hide the video view, remove it, and show the non-video view
            activityVideoView.setVisibility(View.INVISIBLE);
            activityVideoView.removeView(videoViewContainer);
            activityNonVideoView.setVisibility(View.VISIBLE);

            // Call back (only in API level <19, because in API level 19+ with chromium webview it crashes)
            if (videoViewCallback != null && !videoViewCallback.getClass().getName().contains(".chromium."))
            {
                videoViewCallback.onCustomViewHidden();
            }

            // Reset video related variables
            isVideoFullscreen = false;
            videoViewContainer = null;
            videoViewCallback = null;

            // Notify full-screen change
            if (toggledFullscreenCallback != null)
            {
                toggledFullscreenCallback.toggledFullscreen(false);
            }
        }
    }

    @Override
    public View getVideoLoadingProgressView() // Video will start loading
    {
        if (loadingView != null)
        {
            loadingView.setVisibility(View.VISIBLE);
            return loadingView;
        }
        else
        {
            return super.getVideoLoadingProgressView();
        }
    }

    @Override
    public void onPrepared(MediaPlayer mp) // Video will start playing, only called in the case of android.widget.VideoView (typically API level <11)
    {
        if (loadingView != null)
        {
            loadingView.setVisibility(View.GONE);
        }
    }

    @Override
    public void onCompletion(MediaPlayer mp) // Video finished playing, only called in the case of android.widget.VideoView (typically API level <11)
    {
        onHideCustomView();
    }

    @Override
    public boolean onError(MediaPlayer mp, int what, int extra) // Error while playing video, only called in the case of android.widget.VideoView (typically API level <11)
    {
        return false; // By returning false, onCompletion() will be called
    }

    /**
     * Notifies the class that the back key has been pressed by the user.
     * This must be called from the Activity's onBackPressed(), and if it returns false, the activity itself should handle it. Otherwise don't do anything.
     * @return Returns true if the event was handled, and false if was not (video view is not visible)
     */
    public boolean onBackPressed()
    {
        if (isVideoFullscreen)
        {
            onHideCustomView();
            return true;
        }
        else
        {
            return false;
        }
    }

}

VideoEnabledWebView class

import android.annotation.SuppressLint;
import android.content.Context;
import android.os.Handler;
import android.os.Looper;
import android.util.AttributeSet;
import android.webkit.WebChromeClient;
import android.webkit.WebView;

import java.util.Map;

/**
 * This class serves as a WebView to be used in conjunction with a VideoEnabledWebChromeClient.
 * It makes possible:
 * - To detect the HTML5 video ended event so that the VideoEnabledWebChromeClient can exit full-screen.
 * 
 * Important notes:
 * - Javascript is enabled by default and must not be disabled with getSettings().setJavaScriptEnabled(false).
 * - setWebChromeClient() must be called before any loadData(), loadDataWithBaseURL() or loadUrl() method.
 *
 * @author Cristian Perez (http://cpr.name)
 *
 */
public class VideoEnabledWebView extends WebView
{
    public class JavascriptInterface
    {
        @android.webkit.JavascriptInterface
        public void notifyVideoEnd() // Must match Javascript interface method of VideoEnabledWebChromeClient
        {
            // This code is not executed in the UI thread, so we must force that to happen
            new Handler(Looper.getMainLooper()).post(new Runnable()
            {
                @Override
                public void run()
                {
                    if (videoEnabledWebChromeClient != null)
                    {
                        videoEnabledWebChromeClient.onHideCustomView();
                    }
                }
            });
        }
    }

    private VideoEnabledWebChromeClient videoEnabledWebChromeClient;
    private boolean addedJavascriptInterface;

    public VideoEnabledWebView(Context context)
    {
        super(context);
        addedJavascriptInterface = false;
    }

    @SuppressWarnings("unused")
    public VideoEnabledWebView(Context context, AttributeSet attrs)
    {
        super(context, attrs);
        addedJavascriptInterface = false;
    }

    @SuppressWarnings("unused")
    public VideoEnabledWebView(Context context, AttributeSet attrs, int defStyle)
    {
        super(context, attrs, defStyle);
        addedJavascriptInterface = false;
    }

    /**
     * Indicates if the video is being displayed using a custom view (typically full-screen)
     * @return true it the video is being displayed using a custom view (typically full-screen)
     */
    public boolean isVideoFullscreen()
    {
        return videoEnabledWebChromeClient != null && videoEnabledWebChromeClient.isVideoFullscreen();
    }

    /**
     * Pass only a VideoEnabledWebChromeClient instance.
     */
    @Override @SuppressLint("SetJavaScriptEnabled")
    public void setWebChromeClient(WebChromeClient client)
    {
        getSettings().setJavaScriptEnabled(true);

        if (client instanceof VideoEnabledWebChromeClient)
        {
            this.videoEnabledWebChromeClient = (VideoEnabledWebChromeClient) client;
        }

        super.setWebChromeClient(client);
    }

    @Override
    public void loadData(String data, String mimeType, String encoding)
    {
        addJavascriptInterface();
        super.loadData(data, mimeType, encoding);
    }

    @Override
    public void loadDataWithBaseURL(String baseUrl, String data, String mimeType, String encoding, String historyUrl)
    {
        addJavascriptInterface();
        super.loadDataWithBaseURL(baseUrl, data, mimeType, encoding, historyUrl);
    }

    @Override
    public void loadUrl(String url)
    {
        addJavascriptInterface();
        super.loadUrl(url);
    }

    @Override
    public void loadUrl(String url, Map<String, String> additionalHttpHeaders)
    {
        addJavascriptInterface();
        super.loadUrl(url, additionalHttpHeaders);
    }

    private void addJavascriptInterface()
    {
        if (!addedJavascriptInterface)
        {
            // Add javascript interface to be called when the video ends (must be done before page load)
            addJavascriptInterface(new JavascriptInterface(), "_VideoEnabledWebView"); // Must match Javascript interface name of VideoEnabledWebChromeClient

            addedJavascriptInterface = true;
        }
    }

}

Example usage:

Main layout activity_main.xml in which we put a VideoEnabledWebView and other used views:

<RelativeLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >

    <!-- View that will be hidden when video goes fullscreen -->
    <RelativeLayout
        android:id="@+id/nonVideoLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <your.package.VideoEnabledWebView
            android:id="@+id/webView"
            android:layout_width="match_parent"
            android:layout_height="match_parent" />

    </RelativeLayout>   

    <!-- View where the video will be shown when video goes fullscreen -->
    <RelativeLayout
        android:id="@+id/videoLayout"
        android:layout_width="match_parent"
        android:layout_height="match_parent" >

        <!-- View that will be shown while the fullscreen video loads (maybe include a spinner and a "Loading..." message) -->
        <View
            android:id="@+id/videoLoading"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerInParent="true"
            android:visibility="invisible" />

    </RelativeLayout>

</RelativeLayout>

Activity's onCreate(), in which we initialize it:

private VideoEnabledWebView webView;
private VideoEnabledWebChromeClient webChromeClient;

@Override
protected void onCreate(Bundle savedInstanceState)
{
    super.onCreate(savedInstanceState);

    // Set layout
    setContentView(R.layout.activity_main);

    // Save the web view
    webView = (VideoEnabledWebView) findViewById(R.id.webView);

    // Initialize the VideoEnabledWebChromeClient and set event handlers
    View nonVideoLayout = findViewById(R.id.nonVideoLayout); // Your own view, read class comments
    ViewGroup videoLayout = (ViewGroup) findViewById(R.id.videoLayout); // Your own view, read class comments
    View loadingView = getLayoutInflater().inflate(R.layout.view_loading_video, null); // Your own view, read class comments
    webChromeClient = new VideoEnabledWebChromeClient(nonVideoLayout, videoLayout, loadingView, webView) // See all available constructors...
    {
        // Subscribe to standard events, such as onProgressChanged()...
        @Override
        public void onProgressChanged(WebView view, int progress)
        {
            // Your code...
        }
    };
    webChromeClient.setOnToggledFullscreen(new VideoEnabledWebChromeClient.ToggledFullscreenCallback()
    {
        @Override
        public void toggledFullscreen(boolean fullscreen)
        {
            // Your code to handle the full-screen change, for example showing and hiding the title bar. Example:
            if (fullscreen)
            {
                WindowManager.LayoutParams attrs = getWindow().getAttributes();
                attrs.flags |= WindowManager.LayoutParams.FLAG_FULLSCREEN;
                attrs.flags |= WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
                getWindow().setAttributes(attrs);
                if (android.os.Build.VERSION.SDK_INT >= 14)
                {
                    getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LOW_PROFILE);
                }
            }
            else
            {
                WindowManager.LayoutParams attrs = getWindow().getAttributes();
                attrs.flags &= ~WindowManager.LayoutParams.FLAG_FULLSCREEN;
                attrs.flags &= ~WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON;
                getWindow().setAttributes(attrs);
                if (android.os.Build.VERSION.SDK_INT >= 14)
                {
                    getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
                }
            }

        }
    });
    webView.setWebChromeClient(webChromeClient);

    // Navigate everywhere you want, this classes have only been tested on YouTube's mobile site
    webView.loadUrl("http://m.youtube.com");
}

And don't forget to call onBackPressed():

@Override
public void onBackPressed()
{
    // Notify the VideoEnabledWebChromeClient, and handle it ourselves if it doesn't handle it
    if (!webChromeClient.onBackPressed())
    {
        if (webView.canGoBack())
        {
            webView.goBack();
        }
        else
        {
            // Close app (presumably)
            super.onBackPressed();
        }
    }
}

Yes, you must open php.ini and remove the semicolon to:

;extension=php_openssl.dll

If you don't have that line, check that you have the file (In my PC is on D:\xampp\php\ext) and add this to php.ini in the "Dynamic Extensions" section:

extension=php_openssl.dll

Things have changed for PHP > 7. This is what i had to do for PHP 7.2.

Step: 1: Uncomment extension=openssl

Step: 2: Uncomment extension_dir = "ext"

Step: 3: Restart xampp.

Done.

Explanation: ( From php.ini )

If you wish to have an extension loaded automatically, use the following syntax:

extension=modulename

Note : The syntax used in previous PHP versions (extension=<ext>.so and extension='php_<ext>.dll) is supported for legacy reasons and may be deprecated in a future PHP major version. So, when it is possible, please move to the new (extension=<ext>) syntax.

Special Note: Be sure to appropriately set the extension_dir directive.

This will iterate through all the elements:

array = [1, 2, 3, 4, 5, 6]
array.each { |x| puts x }

Prints:

1
2
3
4
5
6

This will iterate through all the elements giving you the value and the index:

array = ["A", "B", "C"]
array.each_with_index {|val, index| puts "#{val} => #{index}" }

Prints:

A => 0
B => 1
C => 2

I'm not quite sure from your question which one you are looking for.

Old post but as you said "why is it not using the correct certificate" I would like to offer an way to find out which SSL certificate is used for SMTP (see here) which required openssl:

openssl s_client -connect exchange01.int.contoso.com:25 -starttls smtp

This will outline the used SSL certificate for the SMTP service. Based on what you see here you can replace the wrong certificate (like you already did) with a correct one (or trust the certificate manually).

var pathname = window.location.pathname; // Returns path only
var url      = window.location.href;     // Returns full URL

Copied from this answer

Simply use :

"SELECT * FROM `trees` WHERE LOWER(trees.`title`) LIKE  '%elm%'";

Or Use

"SELECT * FROM `trees` WHERE LCASE(trees.`title`) LIKE  '%elm%'";

Both functions works same

It's worth mentioning that

$('a').attr('href'); // gets the actual value
$('a').prop('href'); // gets the full URL always

Use:

clear fileName:lineNum   // Removes all breakpoints at the specified line.
delete breakpoint number // Delete one breakpoint whose number is 'number'

How about this?

puts "ok" if hash_variable["key"] == "X"

You can access hash values with the [] operator

After countless attempts, I found the following quote:

If you are using My KNOX, you cannot enable USB debugging mode while the container is installed. Unfortunately, you have to root your device ... - continue reading

Furthermore make sure:

• your USB-cable works
• your connection type is MTP (or PTP in some cases)
• to enable USB debugging before pluging your device via USB-cable

I switched to another device without KNOX (not rooted as well) to save time. Maybe this quote will save someone some time. It was the only explanation to me in this case.

Cheers!

I just solved this issue myself. You were on the right track.

@media (min-width: 1200px) {
    .container{
        max-width: 970px;
    }
}

Here we say: On viewports 1200px or larger - set container max-width to 970px. This will overwrite the standard class that currently sets max-width to 1170px for that range.

NOTE: Make sure you include this AFTER the bootstrap.css stuff (everyone has made this little mistake in the past).

Hope this helps.. good luck!

You might want to try screenfly. It worked great for me.

Open the workbook as hidden and then set it as "saved" so that users are not prompted when they close out.

Dim w As Workbooks

Private Sub Workbook_Open()
    Application.ScreenUpdating = False
    Set w = Workbooks
    w.Open Filename:="\\server\PriceList.xlsx", UpdateLinks:=False, ReadOnly:=True 'this is the data file were going to be opening
    ActiveWindow.Visible = False
    ThisWorkbook.Activate
    Application.ScreenUpdating = True
End Sub

Private Sub Workbook_BeforeClose(Cancel As Boolean)
    w.Item(2).Saved = True 'this will suppress the safe prompt for the data file only
End Sub

This is somewhat derivative of the answer posted by Ashok.

By doing it this way though you will not get prompted to save changes back to the Excel file your reading from. This is great if the Excel file your reading from is intended as a data source for validation. For example if the workbook contains product names and price data it can be hidden and you can show an Excel file that represents an invoice with drop downs for product that validates from that price list.

You can then store the price list on a shared location on a network somewhere and make it read-only.

This is the btn click event

btnvideo.setOnClickListener(new OnClickListener() {

public void onClick(View v) {

    startActivity(new Intent(Intent.ACTION_VIEW,Uri.parse("http://www.youtube.com/watch?v=Hxy8BZGQ5Jo")));
    Log.i("Video", "Video Playing....");

    }
}); 

this type it opened in another page with the youtube where u can show your video

Another option in case you don't wanna use a plugin:

Ctrl+` or

View -> Show Console

type on the console the following command:

view.encoding()

In case you want to something more intrusive, there's a option to create an shortcut that executes the following command:

sublime.message_dialog(view.encoding())

First you have to create a migration, you can use the migrate:make command on the laravel artisan CLI.Old laravel version like laravel 4 you may use this command for Laravel 4:

php artisan migrate:make add_paid_to_users

And for laravel 5 version

for Laravel 5+:

php artisan make:migration add_paid_to_users_table --table=users

Then you need to use the Schema::table() . And you have to add the column:

public function up()

{

    Schema::table('users', function($table) {

        $table->integer('paid');

    });

}

further you can check this

Try wrapping the spans in an anchor tag and apply the background image to that.

HTML:

<div class="header">
    <a href="/">
        <span class="header-title">My gray sea design</span><br />
        <span class="header-title-two">A beautiful design</span>
    </a>
</div>

CSS:

.header {
    border-bottom:1px solid #eaeaea;
}

.header a {
    display: block;
    background-image: url("./images/embouchure.jpg");
    background-repeat: no-repeat;
    height:160px;
    padding-left:280px;
    padding-top:50px;
    width:470px;
    color: #eaeaea;
}

This can be a somewhat confusing way of defining the size but you are basically specifying the area of the marker. This means, to double the width (or height) of the marker you need to increase s by a factor of 4. [because A = WH => (2W)(2H)=4A]

There is a reason, however, that the size of markers is defined in this way. Because of the scaling of area as the square of width, doubling the width actually appears to increase the size by more than a factor 2 (in fact it increases it by a factor of 4). To see this consider the following two examples and the output they produce.

# doubling the width of markers
x = [0,2,4,6,8,10]
y = [0]*len(x)
s = [20*4**n for n in range(len(x))]
plt.scatter(x,y,s=s)
plt.show()

gives

Notice how the size increases very quickly. If instead we have

# doubling the area of markers
x = [0,2,4,6,8,10]
y = [0]*len(x)
s = [20*2**n for n in range(len(x))]
plt.scatter(x,y,s=s)
plt.show()

gives

Now the apparent size of the markers increases roughly linearly in an intuitive fashion.

As for the exact meaning of what a 'point' is, it is fairly arbitrary for plotting purposes, you can just scale all of your sizes by a constant until they look reasonable.

Hope this helps!

Edit: (In response to comment from @Emma)

It's probably confusing wording on my part. The question asked about doubling the width of a circle so in the first picture for each circle (as we move from left to right) it's width is double the previous one so for the area this is an exponential with base 4. Similarly the second example each circle has area double the last one which gives an exponential with base 2.

However it is the second example (where we are scaling area) that doubling area appears to make the circle twice as big to the eye. Thus if we want a circle to appear a factor of n bigger we would increase the area by a factor n not the radius so the apparent size scales linearly with the area.

Edit to visualize the comment by @TomaszGandor:

This is what it looks like for different functions of the marker size:

x = [0,2,4,6,8,10,12,14,16,18]
s_exp = [20*2**n for n in range(len(x))]
s_square = [20*n**2 for n in range(len(x))]
s_linear = [20*n for n in range(len(x))]
plt.scatter(x,[1]*len(x),s=s_exp, label='$s=2^n$', lw=1)
plt.scatter(x,[0]*len(x),s=s_square, label='$s=n^2$')
plt.scatter(x,[-1]*len(x),s=s_linear, label='$s=n$')
plt.ylim(-1.5,1.5)
plt.legend(loc='center left', bbox_to_anchor=(1.1, 0.5), labelspacing=3)
plt.show()

It also works fine for internal IP addresses:

 function get_client_ip()
 {
      $ipaddress = '';
      if (getenv('HTTP_CLIENT_IP'))
          $ipaddress = getenv('HTTP_CLIENT_IP');
      else if(getenv('HTTP_X_FORWARDED_FOR'))
          $ipaddress = getenv('HTTP_X_FORWARDED_FOR');
      else if(getenv('HTTP_X_FORWARDED'))
          $ipaddress = getenv('HTTP_X_FORWARDED');
      else if(getenv('HTTP_FORWARDED_FOR'))
          $ipaddress = getenv('HTTP_FORWARDED_FOR');
      else if(getenv('HTTP_FORWARDED'))
          $ipaddress = getenv('HTTP_FORWARDED');
      else if(getenv('REMOTE_ADDR'))
          $ipaddress = getenv('REMOTE_ADDR');
      else
          $ipaddress = 'UNKNOWN';

      return $ipaddress;
 }

I use it in a practical sense when we transfer large binary objects (images) via web services. So when I am testing a C# web service using a python script, the binary object can be recreated with a little magic.

[In python]

import base64
imageAsBytes = base64.b64decode( dataFromWS )

I just add a static method to call it like a MessageBox:

<Window xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    x:Class="utils.PromptDialog"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    WindowStartupLocation="CenterScreen" 
    SizeToContent="WidthAndHeight"
    MinWidth="300"
    MinHeight="100"
    WindowStyle="SingleBorderWindow"
    ResizeMode="CanMinimize">
<StackPanel Margin="5">
    <TextBlock Name="txtQuestion" Margin="5"/>
    <TextBox Name="txtResponse" Margin="5"/>
    <PasswordBox Name="txtPasswordResponse" />
    <StackPanel Orientation="Horizontal" Margin="5" HorizontalAlignment="Right">
        <Button Content="_Ok" IsDefault="True" Margin="5" Name="btnOk" Click="btnOk_Click" />
        <Button Content="_Cancel" IsCancel="True" Margin="5" Name="btnCancel" Click="btnCancel_Click" />
    </StackPanel>
</StackPanel>
</Window>

And the code behind:

public partial class PromptDialog : Window
{
    public enum InputType
    {
        Text,
        Password
    }

    private InputType _inputType = InputType.Text;

    public PromptDialog(string question, string title, string defaultValue = "", InputType inputType = InputType.Text)
    {
        InitializeComponent();
        this.Loaded += new RoutedEventHandler(PromptDialog_Loaded);
        txtQuestion.Text = question;
        Title = title;
        txtResponse.Text = defaultValue;
        _inputType = inputType;
        if (_inputType == InputType.Password)
            txtResponse.Visibility = Visibility.Collapsed;
        else
            txtPasswordResponse.Visibility = Visibility.Collapsed;
    }

    void PromptDialog_Loaded(object sender, RoutedEventArgs e)
    {
        if (_inputType == InputType.Password)
            txtPasswordResponse.Focus();
        else
            txtResponse.Focus();
    }

    public static string Prompt(string question, string title, string defaultValue = "", InputType inputType = InputType.Text)
    {
        PromptDialog inst = new PromptDialog(question, title, defaultValue, inputType);
        inst.ShowDialog();
        if (inst.DialogResult == true)
            return inst.ResponseText;
        return null;
    }

    public string ResponseText
    {
        get
        {
            if (_inputType == InputType.Password)
                return txtPasswordResponse.Password;
            else
                return txtResponse.Text;
        }
    }

    private void btnOk_Click(object sender, RoutedEventArgs e)
    {
        DialogResult = true;
        Close();
    }

    private void btnCancel_Click(object sender, RoutedEventArgs e)
    {
        Close();
    }
}

So you can call it like:

string repeatPassword = PromptDialog.Prompt("Repeat password", "Password confirm", inputType: PromptDialog.InputType.Password);

This works on Google Chrome

dropDown = function (elementId) {
    var dropdown = document.getElementById(elementId);
    try {
        showDropdown(dropdown);
    } catch(e) {

    }
    return false;
};

showDropdown = function (element) {
    var event;
    event = document.createEvent('MouseEvents');
    event.initMouseEvent('mousedown', true, true, window);
    element.dispatchEvent(event);
};

It allows for further querying further down the line. If this was beyond a service boundary say, then the user of this IQueryable object would be allowed to do more with it.

For instance if you were using lazy loading with nhibernate this might result in graph being loaded when/if needed.

How do you send the message?

The classes in the System.Net.Mail namespace (which is probably what you should use) has full support for authentication, either specified in Web.config, or using the SmtpClient.Credentials property.

public static string ComputeSHA256Hash(string text)
{
    using (var sha256 = new SHA256Managed())
    {
        return BitConverter.ToString(sha256.ComputeHash(Encoding.UTF8.GetBytes(text))).Replace("-", "");
    }                
}

The reason why you get different results is because you don't use the same string encoding. The link you put for the on-line web site that computes SHA256 uses UTF8 Encoding, while in your example you used Unicode Encoding. They are two different encodings, so you don't get the same result. With the example above you get the same SHA256 hash of the linked web site. You need to use the same encoding also in PHP.

The Absolute Minimum Every Software Developer Absolutely, Positively Must Know About Unicode and Character Sets (No Excuses!)

https://www.joelonsoftware.com/2003/10/08/the-absolute-minimum-every-software-developer-absolutely-positively-must-know-about-unicode-and-character-sets-no-excuses/

There are multiple unlimited ways to refresh a page with JavaScript:

1. location.reload()
2. history.go(0)
3. location.href = location.href
4. location.href = location.pathname
5. location.replace(location.pathname)

6. location.reload(false)

   If we needed to pull the document from the web-server again (such as where the document contents change dynamically) we would pass the argument as true.

You can continue the list being creative:

• window.location = window.location
• window.self.window.self.window.window.location = window.location
• ...and other 534 ways

var methods = [_x000D_
  "location.reload()",_x000D_
  "history.go(0)",_x000D_
  "location.href = location.href",_x000D_
  "location.href = location.pathname",_x000D_
  "location.replace(location.pathname)",_x000D_
  "location.reload(false)"_x000D_
];_x000D_
_x000D_
var $body = $("body");_x000D_
for (var i = 0; i < methods.length; ++i) {_x000D_
  (function(cMethod) {_x000D_
    $body.append($("<button>", {_x000D_
      text: cMethod_x000D_
    }).on("click", function() {_x000D_
      eval(cMethod); // don't blame me for using eval_x000D_
    }));_x000D_
  })(methods[i]);_x000D_
}

button {_x000D_
  background: #2ecc71;_x000D_
  border: 0;_x000D_
  color: white;_x000D_
  font-weight: bold;_x000D_
  font-family: "Monaco", monospace;_x000D_
  padding: 10px;_x000D_
  border-radius: 4px;_x000D_
  cursor: pointer;_x000D_
  transition: background-color 0.5s ease;_x000D_
  margin: 2px;_x000D_
}_x000D_
button:hover {_x000D_
  background: #27ae60;_x000D_
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

You can use the sprintf method, however the arg method is preferred as it supports unicode.

QString str;
str.sprintf("%s %d", "string", 213);

You don't want use PreparedStatment with dynamic queries using IN clause at least your sure you're always under 5 variable or a small value like that but even like that I think it's a bad idea ( not terrible, but bad ). As the number of elements is large, it will be worse ( and terrible ).

Imagine hundred or thousand possibilities in your IN clause :

1. It's counter-productive, you lost performance and memory because you cache every time a new request, and PreparedStatement are not just for SQL injection, it's about performance. In this case, Statement is better.

2. Your pool have a limit of PreparedStatment ( -1 defaut but you must limit it ), and you will reach this limit ! and if you have no limit or very large limit you have some risk of memory leak, and in extreme case OutofMemory errors. So if it's for your small personnal project used by 3 users it's not dramatic, but you don't want that if you're in a big company and that you're app is used by thousand people and million request.

Some reading. IBM : Memory utilization considerations when using prepared statement caching

You can change the class of the entire table and use the cascade in the CSS: http://jsbin.com/oyunuy/1/

Ensure Solution Explorer is visible In MS Studio 2008 Go to view and click Solution explorer

In Solution explorer go to Reference Right click on Reference and select Add Reference.. Select .NET tab Scroll down till you find System.Drawing -> select it -> click on OK button Do the same for System.Windows.Forms

When you run your form this will work

(eddie lives somewhere in time)

Look into WordNet, a large lexical database for the English language:

http://wordnet.princeton.edu/

There are APIs for accessing it in several languages.

For me both keys for sql-mode worked. Whether I used

# dash no quotes
sql-mode=NO_ENGINE_SUBSTITUTION

or

# underscore no quotes
sql_mode=NO_ENGINE_SUBSTITUTION

in the my.ini file made no difference and both were accepted, as far as I could test it.

What actually made a difference was a missing newline at the end of the my.ini file.

So everyone having problems with this or similar problems with my.ini/my.cnf: Make sure there is a blank line at the end of the file!

Tested using MySQL 5.7.27.

What about

import sys
....
....
....
sys.exit("I am getting the heck out of here!")

No traceback and somehow more explicit.

> How RecyclerView is different from Listview?

One difference is that there is LayoutManager class with RecyclerView by which you can manage your RecyclerView like-

Horizontal or Vertical scrolling by LinearLayoutManager

GridLayout by GridLayoutManager

Staggered GridLayout by StaggeredGridLayoutManager

Like for horizontal scrolling for RecyclerView-

LinearLayoutManager llm = new LinearLayoutManager(context);
llm.setOrientation(LinearLayoutManager.HORIZONTAL);
recyclerView.setLayoutManager(llm);

Jeff Richter in CLR via C#:

"With version 2.0 of the CLR, the maximum number of worker threads default to 25 per CPU in the machine and the maximum number of I/O threads defaults to 1000. A limit of 1000 is effectively no limit at all."

Note this is based on .NET 2.0. This may have changed in .NET 3.5.

[Edit] As @Mitch pointed out, this is specific to the CLR ThreadPool. If you're creating threads directly see the @Mitch and others comments.

I forgot to mention. This should also accept whitespace.

You could use:

/^[-@.\/#&+\w\s]*$/

Note how this makes use of the character classes \w and \s.

EDIT:- Added \ to escape /

Use the built-in isinstance() function.

import pandas as pd

def f(var):
    if isinstance(var, pd.DataFrame):
        print("do stuff")

Another option is to rename using a regular expression:

import pandas as pd
import re

df = pd.DataFrame({'$a':[1,2], '$b':[3,4], '$c':[5,6]})

df = df.rename(columns=lambda x: re.sub('\$','',x))
>>> df
   a  b  c
0  1  3  5
1  2  4  6

select * from table order by random() limit 1000;

If you know how many rows you want, check out tsm_system_rows.

tsm_system_rows

module provides the table sampling method SYSTEM_ROWS, which can be used in the TABLESAMPLE clause of a SELECT command.

This table sampling method accepts a single integer argument that is the maximum number of rows to read. The resulting sample will always contain exactly that many rows, unless the table does not contain enough rows, in which case the whole table is selected. Like the built-in SYSTEM sampling method, SYSTEM_ROWS performs block-level sampling, so that the sample is not completely random but may be subject to clustering effects, especially if only a small number of rows are requested.

First install the extension

CREATE EXTENSION tsm_system_rows;

Then your query,

SELECT *
FROM table
TABLESAMPLE SYSTEM_ROWS(1000);

Use this:

SELECT 
    Pieces, Price, 
    Pieces * Price as 'Total' 
FROM myTable

This is a simple way to add to an array in java. I used a second array to store my original array, and then added one more element to it. After that I passed that array back to the original one.

    int [] test = {12,22,33};
    int [] test2= new int[test.length+1];
    int m=5;int mz=0;
    for ( int test3: test)        
    {          
    test2[mz]=test3; mz++;        
    } 
    test2[mz++]=m;
    test=test2;

    for ( int test3: test)

    {
      System.out.println(test3);
    }

Short answer: yes you can. Of course you'll have to make sure that the new value doesn't match any existing value and other constraints are satisfied (duh).

What exactly are you trying to do?

if you have an __init__.py in an upper folder, you can initialize the import as import file/path as alias in that init file. Then you can use it on lower scripts as:

import alias

A trivial one is to ask them to code up a breadth-first search of a tree from scratch. Yeah, if you know what you're doing it is trivial. But a lot of programmers don't know how to tackle it.

One that I find more useful still is as follows. I've given this in a number of languages, here is a Perl version. First I give them the following code sample:

# @a and @b are two arrays which are already populated.
my @int;
OUTER: for my $x (@a) {
  for my $y (@b) {
    if ($x eq $y) {
      push @int, $x;
      next OUTER;
    }
  }
}

Then I ask them the following questions. I ask them slowly, give people time to think, and am willing to give them nudges:

1. What is in @int when this code is done?
2. This code is put into production and there is a performance problem that is tracked back to this code. Explain the potential performance problem. (If they are struggling I'll ask how many comparisons it takes if @a and @b each have 100,000 elements. I am not looking for specific terminology, just a back of the envelope estimate.)
3. Without code, suggest to make this faster. (If they propose a direction that is easy to code, I'll ask them to code it. If they think of a solution that will result in @int being changed in any way (eg commonly order), I'll push to see whether they realize that they shouldn't code the fix before checking whether that matters.)

If they come up with a slightly (or very) wrong solution, the following silly data set will find most mistakes you run across:

@a = qw(
  hello
  world
  hello
  goodbye
  earthlings
);
@b = qw(
  earthlings
  say
  hello
  earthlings
);

I'd guess that about 2/3 of candidates fail this question. I have yet to encounter a competent programmer who had trouble with it. I've found that people with good common sense and very little programming background do better on this than average programmers with a few years of experience.

I would suggest using these questions as filters. Don't hire someone because they can answer these. But if they can't answer these, then don't hire them.

Here's a nice answer from the FAQ on the scipy.org website:

What advantages do NumPy arrays offer over (nested) Python lists?

Python’s lists are efficient general-purpose containers. They support (fairly) efficient insertion, deletion, appending, and concatenation, and Python’s list comprehensions make them easy to construct and manipulate. However, they have certain limitations: they don’t support “vectorized” operations like elementwise addition and multiplication, and the fact that they can contain objects of differing types mean that Python must store type information for every element, and must execute type dispatching code when operating on each element. This also means that very few list operations can be carried out by efficient C loops – each iteration would require type checks and other Python API bookkeeping.

if there is no value inserted, the default value should be null,empty

In the table definition, make this datetime column allows null, be not defining NOT NULL:

...
DateTimeColumn DateTime,
...

I HAVE ALLOWED NULL VARIABLES THOUGH.

Then , just insert NULL in this column:

INSERT INTO Table(name, datetimeColumn, ...)
VALUES('foo bar', NULL, ..);

Or, you can make use of the DEFAULT constaints:

...
DateTimeColumn DateTime DEFAULT NULL,
...

Then you can ignore it completely in the INSERT statement and it will be inserted withe the NULL value:

INSERT INTO Table(name, ...)
VALUES('foo bar', ..);

Is Button1 visible? I mean, from the server side. Make sure Button1.Visible is true.

Controls that aren't Visible won't be rendered in HTML, so although they are assigned a ClientID, they don't actually exist on the client side.

Have a look at this article, it's not an exact match to your problem, but suits it:

• Craig Murphy - Excel – wordwrap row autosize issue

So you can do it like this, but the limitation with the Parcelables is that the payload between activities has to be less than 1MB total. It's usually better to save the Bitmap to a file and pass the URI to the image to the next activity.

 protected void onCreate(Bundle savedInstanceState) {     setContentView(R.layout.my_layout);     Bitmap bitmap = getIntent().getParcelableExtra("image");     ImageView imageView = (ImageView) findViewById(R.id.imageview);     imageView.setImageBitmap(bitmap);  } 

import os

os.system("awk '(NR == 1) || (FNR > 1)' file*.csv > merged.csv")

Where NR and FNR represent the number of the line being processed.

FNR is the current line within each file.

NR == 1 includes the first line of the first file (the header), while (FNR > 1) skips the first line of each subsequent file.

If your goal is to keep a local copy of the repository for easy backup or for sticking onto an external drive or sharing via cloud storage (Dropbox, etc) you may want to use a bare repository. This allows you to create a copy of the repository without a working directory, optimized for sharing.

For example:

$ git init --bare ~/repos/myproject.git
$ cd /path/to/existing/repo
$ git remote add origin ~/repos/myproject.git
$ git push origin master

Similarly you can clone as if this were a remote repo:

$ git clone ~/repos/myproject.git

Please try this ... hope it helps

JSONObject jsonObj1=null;
JSONObject jsonObj2=null;
JSONArray array=new JSONArray();
JSONArray array2=new JSONArray();

jsonObj1=new JSONObject();
jsonObj2=new JSONObject();


array.put(new JSONObject().put("firstName", "John").put("lastName","Doe"))
.put(new JSONObject().put("firstName", "Anna").put("v", "Smith"))
.put(new JSONObject().put("firstName", "Peter").put("v", "Jones"));

array2.put(new JSONObject().put("firstName", "John").put("lastName","Doe"))
.put(new JSONObject().put("firstName", "Anna").put("v", "Smith"))
.put(new JSONObject().put("firstName", "Peter").put("v", "Jones"));

jsonObj1.put("employees", array);
jsonObj1.put("manager", array2);

Response response = null;
response = Response.status(Status.OK).entity(jsonObj1.toString()).build();
return response;

This TypeScript code

class A {
    private a1;
    public a2;
}

compiles to this JavaScript code

class A {
}

That's because properties in JavaScript start extisting only after they have some value. You have to assign the properties some value.

class A {
    private a1 = "";
    public a2 = "";
}

it compiles to

class A {
    constructor() {
        this.a1 = "";
        this.a2 = "";
    }
}

Still, you cannot get the properties from mere class (you can get only methods from prototype). You must create an instance. Then you get the properties by calling Object.getOwnPropertyNames().

let a = new A();
let array = return Object.getOwnPropertyNames(a);

array[0] === "a1";
array[1] === "a2";

Applied to your example

class Describer {
    static describe(instance): Array<string> {
        return Object.getOwnPropertyNames(instance);
    }
}

let a = new A();
let x = Describer.describe(a);

_x000D_
_x000D_
let myArr = [_x000D_
    { name: "john", age: 23 },_x000D_
    { name: "john", age: 43 },_x000D_
    { name: "jim", age: 101 },_x000D_
    { name: "bob", age: 67 },_x000D_
];_x000D_
_x000D_
let list = _.filter(myArr, item => item.name === "john");
_x000D_
_x000D_
_x000D_

If you are running your application just on localhost and it is not yet live, I believe it is very difficult to send mail using this.

Once you put your application online, I believe that this problem should be automatically solved. By the way,ini_set() helps you to change the values in php.ini during run time.

This is the same question as Failed to connect to mailserver at "localhost" port 25

also check this php mail function not working

A simple one would be

\d{4}-\d{2}-\d{2}

Debuggex Demo

but this does not restrict month to 1-12 and days from 1 to 31.

There are more complex checks like in the other answers, by the way pretty clever ones. Nevertheless you have to check for a valid date, because there are no checks for if a month has 28, 30, or 31 days.

One way is to track where each index goes to by sorting the identity [0,1,2,..n]

This works for any number of lists.

Then move each item to its position. Using splices is best.

list1 = [3,2,4,1, 1]
list2 = ['three', 'two', 'four', 'one', 'one2']

index = list(range(len(list1)))
print(index)
'[0, 1, 2, 3, 4]'

index.sort(key = list1.__getitem__)
print(index)
'[3, 4, 1, 0, 2]'

list1[:] = [list1[i] for i in index]
list2[:] = [list2[i] for i in index]

print(list1)
print(list2)
'[1, 1, 2, 3, 4]'
"['one', 'one2', 'two', 'three', 'four']"

Note we could have iterated the lists without even sorting them:

list1_iter = (list1[i] for i in index)

Calling one procedure from another procedure:

One for a normal procedure:

CREATE OR REPLACE SP_1() AS 
BEGIN
/*  BODY */
END SP_1;

Calling procedure SP_1 from SP_2:

CREATE OR REPLACE SP_2() AS
BEGIN
/* CALL PROCEDURE SP_1 */
SP_1();
END SP_2;

Call a procedure with REFCURSOR or output cursor:

CREATE OR REPLACE SP_1
(
oCurSp1 OUT SYS_REFCURSOR
) AS
BEGIN
/*BODY */
END SP_1;

Call the procedure SP_1 which will return the REFCURSOR as an output parameter

CREATE OR REPLACE SP_2 
(
oCurSp2 OUT SYS_REFCURSOR
) AS `enter code here`
BEGIN
/* CALL PROCEDURE SP_1 WITH REF CURSOR AS OUTPUT PARAMETER */
SP_1(oCurSp2);
END SP_2;

If t is a matrix, you need to use the element-wise multiplication or exponentiation. Note the dot.

x = exp( -t.^2 )

or

x = exp( -t.*t )

When you start StreamWriter it's override the text was there before. You can use append property like so:

TextWriter t = new StreamWriter(path, true);

As Christian's answer with assign() shows, there is a way to assign in the global environment. A simpler, shorter (but not better ... stick with assign) way is to use the <<- operator, ie

    a <<- "new" 

inside the function.

There is a Threading extension being activley developed based on PThreads that looks very promising at https://github.com/krakjoe/pthreads

you can also skip creating dictionary altogether. i used below approach to same problem .

 mappedItems: {};
 items.forEach(item => {     
        if (mappedItems[item.key]) {
           mappedItems[item.key].push({productId : item.productId , price : item.price , discount : item.discount});
        } else {
          mappedItems[item.key] = [];
          mappedItems[item.key].push({productId : item.productId , price : item.price , discount : item.discount}));
        }
    });

If you have access to manipulate the code of the site you are loading, the following should provide a comprehensive method to updating the height of the iframe container anytime the height of the framed content changes.

Add the following code to the pages you are loading (perhaps in a header). This code sends a message containing the height of the HTML container any time the DOM is updated (if you're lazy loading) or the window is resized (when the user modifies the browser).

window.addEventListener("load", function(){
    if(window.self === window.top) return; // if w.self === w.top, we are not in an iframe 
    send_height_to_parent_function = function(){
        var height = document.getElementsByTagName("html")[0].clientHeight;
        //console.log("Sending height as " + height + "px");
        parent.postMessage({"height" : height }, "*");
    }
    // send message to parent about height updates
    send_height_to_parent_function(); //whenever the page is loaded
    window.addEventListener("resize", send_height_to_parent_function); // whenever the page is resized
    var observer = new MutationObserver(send_height_to_parent_function);           // whenever DOM changes PT1
    var config = { attributes: true, childList: true, characterData: true, subtree:true}; // PT2
    observer.observe(window.document, config);                                            // PT3 
});

Add the following code to the page that the iframe is stored on. This will update the height of the iframe, given that the message came from the page that that iframe loads.

<script>
window.addEventListener("message", function(e){
    var this_frame = document.getElementById("healthy_behavior_iframe");
    if (this_frame.contentWindow === e.source) {
        this_frame.height = e.data.height + "px";
        this_frame.style.height = e.data.height + "px";
    }
})
</script>

If you're using Kotlin, API 14+, and just wish to show uninstall dialog for your app:

startActivity(Intent(Intent.ACTION_UNINSTALL_PACKAGE).apply {
    data = Uri.parse("package:$packageName")
})

You can change packageName to any other package name if you want to prompt the user to uninstall another app on the device

Sometimes a lot of troubles with it. In attribute value of datapicker data is 28-06-2014, but datepicker is show or today or nothing. I decided it in a such way:

<input type="text" class="form-control datepicker" data-value="<?= date('d-m-Y', (!$event->date ? time() : $event->date)) ?>" value="<?= date('d-m-Y', (!$event->date ? time() : $event->date)) ?>" />

I added to the input of datapicker attribute data-value, because if call jQuery(this).val() OR jQuery(this).attr('value') - nothing works. I decided init in cycle each datapicker and take its value from attribute data-value:

 $("form .datepicker").each(function() {
        var time = jQuery(this).data('value');
        time = time.split('-');
        $(this).datepicker('setDate', new Date(time[2], time[1], time[0], 0, 0, 0));
    });

and it is works fine =)

My current reputation does not yet allow to post this as a comment. Stans solution to enter the debug mode, press twice Ctrl+Break, play on, save did solve my problem, but I have two unexpected twists:

1. My project struture is password protected, so in order to get into the Debug Mode I had to first enter Developer mode, click on the project structure and enter the password.

2. My project is a template file (.xmtl). I opened the file via double click which opens it as .xml with a "1" at the end of the previous file name. I fixed the bug as by Stans instruction and saved it as that ...1.xml file. When I then opened the template again, this time as template, and wanted to apply the same bug fix to that file, the bug was gone! I did not change this file and still no bug at executing the Macro. This means to me that the bug is not actually in the file, but in a (hidden) setting in Excel.

1) JTable knows JCheckbox with built-in Boolean TableCellRenderers and TableCellEditor by default, then there is contraproductive declare something about that,

2) AbstractTableModel should be useful, where is in the JTable required to reduce/restrict/change nested and inherits methods by default implemented in the DefaultTableModel,

3) consider using DefaultTableModel, (if you are not sure about how to works) instead of AbstractTableModel,

could be generated from simple code:

import javax.swing.*;
import javax.swing.table.*;

public class TableCheckBox extends JFrame {

    private static final long serialVersionUID = 1L;
    private JTable table;

    public TableCheckBox() {
        Object[] columnNames = {"Type", "Company", "Shares", "Price", "Boolean"};
        Object[][] data = {
            {"Buy", "IBM", new Integer(1000), new Double(80.50), false},
            {"Sell", "MicroSoft", new Integer(2000), new Double(6.25), true},
            {"Sell", "Apple", new Integer(3000), new Double(7.35), true},
            {"Buy", "Nortel", new Integer(4000), new Double(20.00), false}
        };
        DefaultTableModel model = new DefaultTableModel(data, columnNames);
        table = new JTable(model) {

            private static final long serialVersionUID = 1L;

            /*@Override
            public Class getColumnClass(int column) {
            return getValueAt(0, column).getClass();
            }*/
            @Override
            public Class getColumnClass(int column) {
                switch (column) {
                    case 0:
                        return String.class;
                    case 1:
                        return String.class;
                    case 2:
                        return Integer.class;
                    case 3:
                        return Double.class;
                    default:
                        return Boolean.class;
                }
            }
        };
        table.setPreferredScrollableViewportSize(table.getPreferredSize());
        JScrollPane scrollPane = new JScrollPane(table);
        getContentPane().add(scrollPane);
    }

    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {

            @Override
            public void run() {
                TableCheckBox frame = new TableCheckBox();
                frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
                frame.pack();
                frame.setLocation(150, 150);
                frame.setVisible(true);
            }
        });
    }
}

Below gives me opposite of what you have. (Notice Group column)

SELECT
    *
FROM
    myTable
GROUP BY
    Group_value,
    ID
ORDER BY
    count(Group_value)

Let me know if this is fine with you...

I am trying to get what you want too...

Simple:

delete myObj.test.key1;

"all" option does not work anymore, The new parameter is;

x = pd.merge(df1, df2, how="outer")

1. Html

   $('#save').click(function(event) {        
       var jenis = $('#jenis').val();
       var model = $('#model').val();
       var harga = $('#harga').val();
       var json = { "jenis" : jenis, "model" : model, "harga": harga};
       $.ajax({
           url: 'phone/save',
           data: JSON.stringify(json),
           type: "POST",           
           beforeSend: function(xhr) {
               xhr.setRequestHeader("Accept", "application/json");
               xhr.setRequestHeader("Content-Type", "application/json");
           },
           success: function(data){ 
               alert(data);
           }
       });
   
       event.preventDefault();
   });
   

   2. Controller

      @Controller
      @RequestMapping(value="/phone")
      public class phoneController {
      
          phoneDao pd=new phoneDao();
      
          @RequestMapping(value="/save",method=RequestMethod.POST)
          public @ResponseBody
          int save(@RequestBody Smartphones phone)
          {
              return pd.save(phone);
          }
      

   3. Dao

      public Integer save(Smartphones i) {
          int id = 0;
          Session session=HibernateUtil.getSessionFactory().openSession();
          Transaction trans=session.beginTransaction();
          try {
              session.save(i);   
              id=i.getId();
              trans.commit();
          }
          catch(HibernateException he){}
          return id;
      }
      

The Python 2 syntax works in Python 3 as well:

>>> class MyClass:
...     def __init__(self):
...         self.title = 'Title'
... 
>>> a = MyClass()
>>> print('The title is %(title)s' % a.__dict__)
The title is Title
>>> 
>>> path = '/path/to/a/file'
>>> print('You put your file here: %(path)s' % locals())
You put your file here: /path/to/a/file

This should work:

date +%s

You need to compile ffmpeg with an AAC encoder. You can find one at AudioCoding.

There is many way to do this.

1. Using MediaQuery : Its return fullscreen of your device including appbar,toolbar

 Container(
        width: MediaQuery.of(context).size.width * 0.50,
        height: MediaQuery.of(context).size.height*0.50, 
        color: Colors.blueAccent[400],
 )

2. Using Expanded : You can set width/height in ratio

 Container(
        height: MediaQuery.of(context).size.height * 0.50,
        child: Row(
          children: <Widget>[
            Expanded(
              flex: 70,
              child: Container(
                color: Colors.lightBlue[400],
              ),
            ),
            Expanded(
              flex: 30,
              child: Container(
                color: Colors.deepPurple[800],
              ),
            )
          ],
        ),
    )

3. Others Like Flexible and AspectRatio and FractionallySizedBox