Objects will be cleaned up when they are no longer being used and when the garbage collector sees fit. Sometimes, you may need to set an object to null
in order to make it go out of scope (such as a static field whose value you no longer need), but overall there is usually no need to set to null
.
Regarding disposing objects, I agree with @Andre. If the object is IDisposable
it is a good idea to dispose it when you no longer need it, especially if the object uses unmanaged resources. Not disposing unmanaged resources will lead to memory leaks.
You can use the using
statement to automatically dispose an object once your program leaves the scope of the using
statement.
using (MyIDisposableObject obj = new MyIDisposableObject())
{
// use the object here
} // the object is disposed here
Which is functionally equivalent to:
MyIDisposableObject obj;
try
{
obj = new MyIDisposableObject();
}
finally
{
if (obj != null)
{
((IDisposable)obj).Dispose();
}
}
Create 2 methods which handle the cases. You can instruct the @RequestMapping
annotation to take into account certain parameters whilst mapping the request. That way you can nicely split this into 2 methods.
@RequestMapping (value="/submit/id/{id}", method=RequestMethod.GET,
produces="text/xml", params={"logout"})
public String handleLogout(@PathVariable("id") String id,
@RequestParam("logout") String logout) { ... }
@RequestMapping (value="/submit/id/{id}", method=RequestMethod.GET,
produces="text/xml", params={"name", "password"})
public String handleLogin(@PathVariable("id") String id, @RequestParam("name")
String username, @RequestParam("password") String password,
@ModelAttribute("submitModel") SubmitModel model, BindingResult errors)
throws LoginException {...}
open notepad++, then drag and drop the folder you want to open as tree view.
OR
File ->open folder as workspace , select the file you want.
https://github.com/facebookincubator/create-react-app
npm install -g create-react-app
create-react-app my-app
cd my-app/
npm start
You install the create-react-app package globally.
After that you run it and create a project called my-app
.
Enter your project folder and then run npm start
. If that doesn't work try running npm install
and then npm start
. If that doesn't work as well, try updating your node version and/or npm.
For those wanting an answer without any code behind it (boom-tish) with a story (to help you remember):
Normal Collections - No Notifications
Every now and then I go to NYC and my wife asks me to buy stuff. So I take a shopping list with me. The list has a lot of things on there like:
hahaha well I"m not buying that stuff. So I cross them off and remove them from the list and I add instead:
So I usually come home without the goods and she's never pleased. The thing is that she doesn't know about what i take off the list and what I add onto it; she gets no notifications.
The ObservableCollection - notifications when changes made
Now, whenever I remove something from the list: she get's a notification on her phone (i.e. sms / email etc)!
The observable collection works just the same way. If you add or remove something to or from it: someone is notified. And when they are notified, well then they call you and you'll get a ear-full. Of course the consequences are customisable via the event handler.
That sums it all up!
This is kind of overriding the thing of one page, but... You could use iframes in HTML.
<html>
<body>
<iframe src="page1.html" border="0"></iframe>
</body>
</html>
And page1.html would be your base page. Your still making multiple pages, but your browser just doesn't move. So lets say thats your index.html. You have tabs, you click page 2, your url wont change, but the page will. All in iframes. The only thing different, is that you can view the frame source as well.
In Layout
<EditText
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textCursorDrawable="@drawable/color_cursor"
/>
Then create drawalble xml: color_cursor
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" >
<size android:width="3dp" />
<solid android:color="#FFFFFF" />
</shape>
You have a white color cursor on EditText property.
just type
cordova platform ls
This will list all the platforms installed along with its version and available for installation plus :)
yes, by using css styles white-space: pre-wrap; in the .dropdown class of the bootstrap by overriding it. Earlier it is white-space: nowrap; so it makes the dropdown wrapped into one line. pre-wrap makes it as according to the width.
To get around the html
vs body
issue, I fixed this by not animating the css directly but rather calling window.scrollTo();
on each step:
$({myScrollTop:window.pageYOffset}).animate({myScrollTop:300}, {
duration: 600,
easing: 'swing',
step: function(val) {
window.scrollTo(0, val);
}
});
This works nicely without any refresh gotchas as it's using cross-browser JavaScript.
Have a look at http://james.padolsey.com/javascript/fun-with-jquerys-animate/ for more information on what you can do with jQuery's animate function.
I've been dealing with a very similar problem and have been able to achieve what I was looking for, even though I'm using SQL Server 2000. I know it is an old question, but think its valid to post here the solution since there should be others like me that use old versions and still need help.
Here's the trick: SQL Server won't accept passing a table to a UDF, nor you can pass a T-SQL query so the function creates a temp table or even calls a stored procedure to do that. So, instead, I've created a reserved table, which I called xtList. This will hold the list of values (1 column, as needed) to work with.
CREATE TABLE [dbo].[xtList](
[List] [varchar](1000) NULL
) ON [PRIMARY]
Then, a stored procedure to populate the list. This is not strictly necessary, but I think is very usefull and best practice.
-- =============================================
-- Author: Zark Khullah
-- Create date: 20/06/2014
-- =============================================
CREATE PROCEDURE [dbo].[xpCreateList]
@ListQuery varchar(2000)
AS
BEGIN
SET NOCOUNT ON;
DELETE FROM xtList
INSERT INTO xtList
EXEC(@ListQuery)
END
Now, just deal with the list in any way you want, using the xtList. You can use in a procedure (for executing several T-SQL commands), scalar functions (for retrieving several strings) or multi-statement table-valued functions (retrieves the strings but like it was inside a table, 1 string per row). For any of that, you'll need cursors:
DECLARE @Item varchar(100)
DECLARE cList CURSOR DYNAMIC
FOR (SELECT * FROM xtList WHERE List is not NULL)
OPEN cList
FETCH FIRST FROM cList INTO @Item
WHILE @@FETCH_STATUS = 0 BEGIN
<< desired action with values >>
FETCH NEXT FROM cList INTO @Item
END
CLOSE cList
DEALLOCATE cList
The desired action would be as follows, depending on which type of object created:
Stored procedures
-- =============================================
-- Author: Zark Khullah
-- Create date: 20/06/2014
-- =============================================
CREATE PROCEDURE [dbo].[xpProcreateExec]
(
@Cmd varchar(8000),
@ReplaceWith varchar(1000)
)
AS
BEGIN
DECLARE @Query varchar(8000)
<< cursor start >>
SET @Query = REPLACE(@Cmd,@ReplaceWith,@Item)
EXEC(@Query)
<< cursor end >>
END
/* EXAMPLES
(List A,B,C)
Query = 'SELECT x FROM table'
with EXEC xpProcreateExec(Query,'x') turns into
SELECT A FROM table
SELECT B FROM table
SELECT C FROM table
Cmd = 'EXEC procedure ''arg''' --whatchout for wrong quotes, since it executes as dynamic SQL
with EXEC xpProcreateExec(Cmd,'arg') turns into
EXEC procedure 'A'
EXEC procedure 'B'
EXEC procedure 'C'
*/
Scalar functions
-- =============================================
-- Author: Zark Khullah
-- Create date: 20/06/2014
-- =============================================
CREATE FUNCTION [dbo].[xfProcreateStr]
(
@OriginalText varchar(8000),
@ReplaceWith varchar(1000)
)
RETURNS varchar(8000)
AS
BEGIN
DECLARE @Result varchar(8000)
SET @Result = ''
<< cursor start >>
SET @Result = @Result + REPLACE(@OriginalText,@ReplaceWith,@Item) + char(13) + char(10)
<< cursor end >>
RETURN @Result
END
/* EXAMPLE
(List A,B,C)
Text = 'Access provided for user x'
with "SELECT dbo.xfProcreateStr(Text,'x')" turns into
'Access provided for user A
Access provided for user B
Access provided for user C'
*/
Multi-statement table-valued functions
-- =============================================
-- Author: Zark Khullah
-- Create date: 20/06/2014
-- =============================================
CREATE FUNCTION [dbo].[xfProcreateInRows]
(
@OriginalText varchar(8000),
@ReplaceWith varchar(1000)
)
RETURNS
@Texts TABLE
(
Text varchar(2000)
)
AS
BEGIN
<< cursor start >>
INSERT INTO @Texts VALUES(REPLACE(@OriginalText,@ReplaceWith,@Item))
<< cursor end >>
END
/* EXAMPLE
(List A,B,C)
Text = 'Access provided for user x'
with "SELECT * FROM dbo.xfProcreateInRow(Text,'x')" returns rows
'Access provided for user A'
'Access provided for user B'
'Access provided for user C'
*/
No. The method for appending an entire sequence is list.extend()
.
>>> L = [1, 2]
>>> L.extend((3, 4, 5))
>>> L
[1, 2, 3, 4, 5]
here is your answer
String userName = "xxxx";
String password = "xxxx";
String url = "jdbc:sqlserver:xxx.xxx.xxx.xxx;databaseName=asdfzxcvqwer;integratedSecurity=true";
try {
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
connection = DriverManager.getConnection(url, userName, password);
} catch (Exception e)
{
e.printStackTrace();
}
Momentjs.com has good documentation on how to manipulate the date/time in relation to the current moment. Since Momentjs is required for the Datetimepicker, might as well use it.
var startDefault = moment().startof('day').add(1, 'minutes');
$('#startdatetime-from').datetimepicker({
defaultDate: startDefault,
language: 'en',
format: 'yyyy-MM-dd hh:mm'
});
Open SQL Server as SA account and click on new query past the below queries
then click on execute, it will rollback all owned schema back to SA account
alter authorization on schema::[db_datareader] to [dbo]
alter authorization on schema::[db_datareader] to [db_datareader]
alter authorization on schema::[db_datawriter] to [dbo]
alter authorization on schema::[db_datawriter] to [db_datawriter]
alter authorization on schema::[db_securityadmin] to [dbo]
alter authorization on schema::[db_securityadmin] to [db_securityadmin]
alter authorization on schema::[db_accessadmin] to [dbo]
alter authorization on schema::[db_accessadmin] to [db_accessadmin]
alter authorization on schema::[db_backupoperator] to [dbo]
alter authorization on schema::[db_backupoperator] to [db_backupoperator]
alter authorization on schema::[db_ddladmin] to [dbo]
alter authorization on schema::[db_ddladmin] to [db_ddladmin]
alter authorization on schema::[db_owner] to [dbo]
alter authorization on schema::[db_owner] to [db_owner]
An alternative is to use OFFSET:
Assuming the column value is stored in B1, you can use the following
C1 = OFFSET(A1, 0, B1 - 1)
This works by:
a) taking a base cell (A1)
b) adding 0 to the row (keeping it as A)
c) adding (A5 - 1) to the column
You can also use another value instead of 0 if you want to change the row value too.
You can create a jQuery function to unload Bootstrap CSS files at the size of 768px, and load it back when resized to lower width. This way you can design a mobile website without touching the desktop version, by using col-xs-* only
function resize() {
if ($(window).width() > 767) {
$('link[rel=stylesheet][href~="bootstrap.min.css"]').prop('disabled', true);
$('link[rel=stylesheet][href~="bootstrap-theme.min.css"]').prop('disabled', true);
}
else {
$('link[rel=stylesheet][href~="bootstrap.min.css"]').prop('disabled', false);
$('link[rel=stylesheet][href~="bootstrap-theme.min.css"]').prop('disabled', false);
}
}
and
$(document).ready(function() {
$(window).resize(resize);
resize();
if ($(window).width() > 767) {
$('link[rel=stylesheet][href~="bootstrap.min.css"]').prop('disabled', true);
$('link[rel=stylesheet][href~="bootstrap-theme.min.css"]').prop('disabled', true);
}
});
You probably have to change it for both the client (you are running to do the import) AND the daemon mysqld that is running and accepting the import.
For the client, you can specify it on the command line:
mysql --max_allowed_packet=100M -u root -p database < dump.sql
Also, change the my.cnf or my.ini file under the mysqld section and set:
max_allowed_packet=100M
or you could run these commands in a MySQL console connected to that same server:
set global net_buffer_length=1000000;
set global max_allowed_packet=1000000000;
(Use a very large value for the packet size.)
The code you listed kind of looks like a Lehmer RNG. If this is the case, then 2147483647
is the largest 32-bit signed integer, 2147483647
is the largest 32-bit prime, and 48271
is a full-period multiplier that is used to generate the numbers.
If this is true, you could modify RandomNumberGenerator
to take in an extra parameter seed
, and then set this.seed
to seed
; but you'd have to be careful to make sure the seed would result in a good distribution of random numbers (Lehmer can be weird like that) -- but most seeds will be fine.
Once you are able to parse those strings into a Date object comparing them is easy (Using the <
operator). Parsing the dates will depend on the format. You may take a look at Datejs which might simplify this task.
I think configuring WINHTTP will also work.
Many programs including Windows Updates are having problems behind proxy. By setting up WINHTTP will always fix this kind of problems
for me, the best solution to suggest to people that have problems with the "R" file would be to try the next steps (order doesn't matter) :
update ADT & SDK , Eclipse and Java (both 1.6 and the latest one).
EDIT: now the ADT supports Java 1.7 . link here.
remove gen folder , and create it again .
do a clean-project.
right click the project and choose android-tools -> fix-project-properties .
right click the project and choose properties -> java-build-path -> order-and-export. make sure the order is :
Android 4.4 (always the latest version)
Android private libraries
android dependencies
your library project/s if needed
yourAppProject/gen
yourAppProject/src
make sure all files in the res folder's subfolders have names that are ok : only lowercase letters, digits and underscore ("_") .
always make sure the targetSdk is pointed to the latest API (currently 19) , and set it in the project.properties file
try to run Lint and read its warnings. they might help you out.
make sure your project compiles on 1.6 java and not a different version.
restart eclipse.
Did the following for a spring application running static, rest and websocket content.
The Apache is used as Proxy and SSL Endpoint for the following URIs:
<VirtualHost *:80>
ServerName xxx.xxx.xxx
ProxyRequests Off
ProxyVia Off
ProxyPreserveHost On
<Proxy *>
Require all granted
</Proxy>
RewriteEngine On
# websocket
RewriteCond %{HTTP:Upgrade} =websocket [NC]
RewriteRule ^/api/ws/(.*) ws://localhost:8080/api/ws/$1 [P,L]
# rest
ProxyPass /api http://localhost:8080/api
ProxyPassReverse /api http://localhost:8080/api
# static content
ProxyPass /app http://localhost:8080/app
ProxyPassReverse /app http://localhost:8080/app
</VirtualHost>
I use the same vHost config for the SSL configuration, no need to change anything proxy related.
server.use-forward-headers: true
There is no portable way of doing that. You can execute a native client as an external program to do that though:
import java.io.*;
public class CmdExec {
public static void main(String argv[]) {
try {
String line;
Process p = Runtime.getRuntime().exec
("psql -U username -d dbname -h serverhost -f scripfile.sql");
BufferedReader input =
new BufferedReader
(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
System.out.println(line);
}
input.close();
}
catch (Exception err) {
err.printStackTrace();
}
}
}
I found this post because I was having the same error in Microsoft Visual C++. (Though it seems it's cause was a little different, than the above posted question.)
I had placed the file, I was trying to include, in the same directory, but it still could not be found.
My include looked like this: #include <ftdi.h>
But When I changed it to this: #include "ftdi.h"
then it found it.
Edit: This answer is wrong, even though, strictly speaking, the code works. I'm only leaving it here because the discussion under it is too useful. This other answer is the best answer given at the time I last edited this: How do I pass a unique_ptr argument to a constructor or a function?
The basic idea of ::std::move
is that people who are passing you the unique_ptr
should be using it to express the knowledge that they know the unique_ptr
they're passing in will lose ownership.
This means you should be using an rvalue reference to a unique_ptr
in your methods, not a unique_ptr
itself. This won't work anyway because passing in a plain old unique_ptr
would require making a copy, and that's explicitly forbidden in the interface for unique_ptr
. Interestingly enough, using a named rvalue reference turns it back into an lvalue again, so you need to use ::std::move
inside your methods as well.
This means your two methods should look like this:
Base(Base::UPtr &&n) : next(::std::move(n)) {} // Spaces for readability
void setNext(Base::UPtr &&n) { next = ::std::move(n); }
Then people using the methods would do this:
Base::UPtr objptr{ new Base; }
Base::UPtr objptr2{ new Base; }
Base fred(::std::move(objptr)); // objptr now loses ownership
fred.setNext(::std::move(objptr2)); // objptr2 now loses ownership
As you see, the ::std::move
expresses that the pointer is going to lose ownership at the point where it's most relevant and helpful to know. If this happened invisibly, it would be very confusing for people using your class to have objptr
suddenly lose ownership for no readily apparent reason.
I had a similar kind of scenario, but in my case string is not a 1st level attribute. It is inside an object. In here I couldn't find a suitable answer for it. So I thought to share my solution with you all(Hope this will help anyone with a similar kind of problem).
Parent Collection
{
"Child":
{
"name":"Random Name",
"Age:"09"
}
}
Ex: If we need to get only collections that having child's name's length is higher than 10 characters.
db.getCollection('Parent').find({$where: function() {
for (var field in this.Child.name) {
if (this.Child.name.length > 10)
return true;
}
}})
NSDictionary *dict = [NSDictionary dictionaryWithObject: @"String" forKey: @"Test"];
NSMutableDictionary *anotherDict = [NSMutableDictionary dictionary];
[anotherDict setObject: dict forKey: "sub-dictionary-key"];
[anotherDict setObject: @"Another String" forKey: @"another test"];
NSLog(@"Dictionary: %@, Mutable Dictionary: %@", dict, anotherDict);
// now we can save these to a file
NSString *savePath = [@"~/Documents/Saved.data" stringByExpandingTildeInPath];
[anotherDict writeToFile: savePath atomically: YES];
//and restore them
NSMutableDictionary *restored = [NSDictionary dictionaryWithContentsOfFile: savePath];
First, if you have already run the migrations generated by the scaffold
command, you have to perform a rollback first.
rake db:rollback
You can create scaffolding using:
rails generate scaffold MyFoo
(or similar), and you can destroy/undo it using
rails destroy scaffold MyFoo
That will delete all the files created by generate
, but not any additional changes you may have made manually.
Normally yes, .gitignore
is useful for everyone who wants to work with the repository. On occasion you'll want to ignore more private things (maybe you often create LOG
or something. In those cases you probably don't want to force that on anyone else.
There is a wonderful library with good reviews on CodeProject: http://www.codeproject.com/Articles/168662/Time-Period-Library-for-NET
That library does a lot of work concerning overlap, intersecting them, etc. It's too big to copy/paste all of it, but I'll see which specific parts which can be useful to you.
Just to answer my own question now after so much time (since CommonsWare commented on the most popular answer telling we should NOT do this):
When I want to quit the app:
FLAG_ACTIVITY_CLEAR_TOP
(which will quit all the other activities started after it, which means - all of them). Just make to have this activity in the activity stack (not finish it for some reason in advance).finish()
on this activityThis is it, works quite well for me.
for standard make you can pass arguments by defining macros like this
make run arg1=asdf
then use them like this
run: ./prog $(arg1)
etc
I wrote the following function. It replaces the following:
Single quote ['] with a slash and a single quote [\'].
Backslash [\] with two backslashes [\\]
function escapePhpString($target) {
$replacements = array(
"'" => '\\\'',
"\\" => '\\\\'
);
return strtr($target, $replacements);
}
You can modify it to add or remove character replacements in the $replacements array. For example, to replace \r\n, it becomes "\r\n" => "\r\n" and "\n" => "\n".
/**
* With new line replacements too
*/
function escapePhpString($target) {
$replacements = array(
"'" => '\\\'',
"\\" => '\\\\',
"\r\n" => "\\r\\n",
"\n" => "\\n"
);
return strtr($target, $replacements);
}
The neat feature about strtr is that it will prefer long replacements.
Example, "Cool\r\nFeature" will escape \r\n rather than escaping \n along.
You want the argument unpacking operator *.
You shouldn't call viewDidLoad method manually, Instead if you want to reload any data or any UI, you can use this:
override func viewDidLoad() {
super.viewDidLoad();
let myButton = UIButton()
// When user touch myButton, we're going to call loadData method
myButton.addTarget(self, action: #selector(self.loadData), forControlEvents: .TouchUpInside)
// Load the data
self.loadData();
}
func loadData() {
// code to load data from network, and refresh the interface
tableView.reloadData()
}
Whenever you want to reload the data and refresh the interface, you can call self.loadData()
Posting a string:
curl -d "String to post" "http://www.example.com/target"
Posting the contents of a file:
curl -d @soap.xml "http://www.example.com/target"
The solution compliant with the v4 of the framework is to set the proper breakpoint. Rather than using .table-responsive, you should be able to use .table-responsive-sm (to be just responsive on small devices)
You can use any of the available endpoints: table-responsive{-sm|-md|-lg|-xl}
Changing a variable doesn't magically execute code within the if
-block. Place the common code in a function, then bind the event, and call the function:
$(document).ready(function() {
// Optimalisation: Store the references outside the event handler:
var $window = $(window);
var $pane = $('#pane1');
function checkWidth() {
var windowsize = $window.width();
if (windowsize > 440) {
//if the window is greater than 440px wide then turn on jScrollPane..
$pane.jScrollPane({
scrollbarWidth:15,
scrollbarMargin:52
});
}
}
// Execute on load
checkWidth();
// Bind event listener
$(window).resize(checkWidth);
});
How about:
>>> string_1 = "(555).555-5555"
>>> string_2 = "(555) 555 - 5555 ext. 5555"
>>> any(c.isalpha() for c in string_1)
False
>>> any(c.isalpha() for c in string_2)
True
if you don't need variable, you can define text in
translations/messages.en.yaml :
CiteExampleHtmlCode: "<b> my static text </b>"
then use it with twig:
templates/about/index.html.twig
… {{ 'CiteExampleHtmlCode' }}
or if you need multilangages like me:
… {{ 'CiteExampleHtmlCode' | trans }}
Let's have a look of https://symfony.com/doc/current/translation.html for more information about translations use.
MySQL lacks support for FULL OUTER JOIN.
So if you want to emulate a Full join on MySQL take a look here .
A commonly suggested workaround looks like this:
SELECT t_13.value AS val13, t_17.value AS val17
FROM t_13
LEFT JOIN
t_17
ON t_13.value = t_17.value
UNION ALL
SELECT t_13.value AS val13, t_17.value AS val17
FROM t_13
RIGHT JOIN
t_17
ON t_13.value = t_17.value
WHERE t_13.value IS NULL
ORDER BY
COALESCE(val13, val17)
LIMIT 30
There is certainly a shorter notation, but that was my approach:
gulp.task('check_env', function () {
return new Promise(function (resolve, reject) {
// gulp --dev
var env = process.argv[3], isDev;
if (env) {
if (env == "--dev") {
log.info("Dev Mode on");
isDev = true;
} else {
log.info("Dev Mode off");
isDev = false;
}
} else {
if (variables.settings.isDev == true) {
isDev = true;
} else {
isDev = false;
}
}
resolve();
});
});
If you want to set the env based to the actual Git branch (master/develop):
gulp.task('set_env', function (cb) {
exec('git rev-parse --abbrev-ref HEAD', function (err, stdout, stderr) {
git__branch = stdout.replace(/(\r\n|\n|\r)/gm, "");
if (git__branch == "develop") {
log.info("?Develop Branch");
isCompressing = false;
} else if (git__branch == "master") {
log.info("Master Branch");
isCompressing = true;
} else {
//TODO: check for feature-* branch
log.warn("Unknown " + git__branch + ", maybe feat?");
//isCompressing = variables.settings.isCompressing;
}
log.info(stderr);
cb(err);
});
return;
})
P.s. For the log I added the following:
var log = require('fancy-log');
In Case you need it, thats my default Task:
gulp.task('default',
gulp.series('set_env', gulp.parallel('build_scss', 'minify_js', 'minify_ts', 'minify_html', 'browser_sync_func', 'watch'),
function () {
}));
Suggestions for optimization are welcome.
Here's a branching-friendly implementation:
inline int signum(const double x) {
if(x == 0) return 0;
return (1 - (static_cast<int>((*reinterpret_cast<const uint64_t*>(&x)) >> 63) << 1));
}
Unless your data has zeros as half of the numbers, here the branch predictor will choose one of the branches as the most common. Both branches only involve simple operations.
Alternatively, on some compilers and CPU architectures a completely branchless version may be faster:
inline int signum(const double x) {
return (x != 0) *
(1 - (static_cast<int>((*reinterpret_cast<const uint64_t*>(&x)) >> 63) << 1));
}
This works for IEEE 754 double-precision binary floating-point format: binary64 .
You can override drawPlaceholderInRect:(CGRect)rect
as such to manually render the placeholder text:
- (void) drawPlaceholderInRect:(CGRect)rect {
[[UIColor blueColor] setFill];
[[self placeholder] drawInRect:rect withFont:[UIFont systemFontOfSize:16]];
}
I was having the same issue. I tried with the compatibility option, but in Windows 10 it doesn't show the compatibility option. The following steps solved the problem for me:
taskschd.msc
as administratorSo somehow setting up the task in taskschd.msc
as a regular user wasn't working, even though my account is an admin one.
Hope this helps anyone having the same issue
In case you need to set Gravity for a View use the following
Button b=new Button(Context);
b.setGravity(Gravity.CENTER);
For setting layout_gravity for the Button use gravity field for the layoutparams as
LayoutParams lp=new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);
lp.gravity=Gravity.CENTER;
try this hope this clears thanks
You should code like this.
var num = $('#Number').val();
$('#Number').focus().val('').val(num);
I think you can also call Refresh()
.
If you're doing this in the context of a asp.Net Core API action, the conversion to Json is done implicitly.
[HttpGet]
public ActionResult Get()
{
return Ok(TheList);
}
To quote the help page (try ?integer
), bolded portion mine:
Integer vectors exist so that data can be passed to C or Fortran code which expects them, and so that (small) integer data can be represented exactly and compactly.
Note that current implementations of R use 32-bit integers for integer vectors, so the range of representable integers is restricted to about +/-2*10^9: doubles can hold much larger integers exactly.
Like the help page says, R's integer
s are signed 32-bit numbers so can hold between -2147483648 and +2147483647 and take up 4 bytes.
R's numeric
is identical to an 64-bit double
conforming to the IEEE 754 standard. R has no single precision data type. (source: help pages of numeric
and double
). A double can store all integers between -2^53 and 2^53 exactly without losing precision.
We can see the data type sizes, including the overhead of a vector (source):
> object.size(1:1000)
4040 bytes
> object.size(as.numeric(1:1000))
8040 bytes
First, you have to write in XML layout:
android:visibility="invisible" <!--or set VISIBLE-->
then use this to show it using Java:
myimage.setVisibility(SHOW); //HIDE
1 line solution in Java 8:
public Date getCurrentUtcTime() {
return Date.from(Instant.now());
}
As seeing here answered by Chen Houwu, it's possible to use string package:
import string
string.capwords("they're bill's friends from the UK")
>>>"They're Bill's Friends From The Uk"
var yourfield = $('fieldname').val();
if($.isNumeric(yourfield)) {
console.log('IM A NUMBER');
} else {
console.log('not a number');
}
JQUERY DOCS:
Hmmm I bet that in some previous lines you have something like:
list = set(something)
Am I wrong ?
There is a ternary operator, like this:
var c = (a < b) ? "a is less than b" : "a is not less than b";
WIth the Help of @excray's comment, I manage to figure it out the answer, What we need to do is actually write a simple for loop to iterate over the two arrays that represent the train data and test data.
First implement a simple lambda function to hold formula for the cosine calculation:
cosine_function = lambda a, b : round(np.inner(a, b)/(LA.norm(a)*LA.norm(b)), 3)
And then just write a simple for loop to iterate over the to vector, logic is for every "For each vector in trainVectorizerArray, you have to find the cosine similarity with the vector in testVectorizerArray."
from sklearn.feature_extraction.text import CountVectorizer
from sklearn.feature_extraction.text import TfidfTransformer
from nltk.corpus import stopwords
import numpy as np
import numpy.linalg as LA
train_set = ["The sky is blue.", "The sun is bright."] #Documents
test_set = ["The sun in the sky is bright."] #Query
stopWords = stopwords.words('english')
vectorizer = CountVectorizer(stop_words = stopWords)
#print vectorizer
transformer = TfidfTransformer()
#print transformer
trainVectorizerArray = vectorizer.fit_transform(train_set).toarray()
testVectorizerArray = vectorizer.transform(test_set).toarray()
print 'Fit Vectorizer to train set', trainVectorizerArray
print 'Transform Vectorizer to test set', testVectorizerArray
cx = lambda a, b : round(np.inner(a, b)/(LA.norm(a)*LA.norm(b)), 3)
for vector in trainVectorizerArray:
print vector
for testV in testVectorizerArray:
print testV
cosine = cx(vector, testV)
print cosine
transformer.fit(trainVectorizerArray)
print
print transformer.transform(trainVectorizerArray).toarray()
transformer.fit(testVectorizerArray)
print
tfidf = transformer.transform(testVectorizerArray)
print tfidf.todense()
Here is the output:
Fit Vectorizer to train set [[1 0 1 0]
[0 1 0 1]]
Transform Vectorizer to test set [[0 1 1 1]]
[1 0 1 0]
[0 1 1 1]
0.408
[0 1 0 1]
[0 1 1 1]
0.816
[[ 0.70710678 0. 0.70710678 0. ]
[ 0. 0.70710678 0. 0.70710678]]
[[ 0. 0.57735027 0.57735027 0.57735027]]
I will side with nategood's answer as it is complete and it seemed to have please your needs. Though, I would like to add a comment on identifying multiple (1 or more) resource that way:
http://our.api.com/Product/101404,7267261
In doing so, you:
Complexify the clients
by forcing them to interpret your response as an array, which to me is counter intuitive if I make the following request: http://our.api.com/Product/101404
Create redundant APIs with one API for getting all products and the one above for getting 1 or many. Since you shouldn't show more than 1 page of details to a user for the sake of UX, I believe having more than 1 ID would be useless and purely used for filtering the products.
It might not be that problematic, but you will either have to handle this yourself server side by returning a single entity (by verifying if your response contains one or more) or let clients manage it.
Example
I want to order a book from Amazing. I know exactly which book it is and I see it in the listing when navigating for Horror books:
After selecting the second book, I am redirected to a page detailing the book part of a list:
--------------------------------------------
Book #1
--------------------------------------------
Title: The return of the amazing monster
Summary:
Pages:
Publisher:
--------------------------------------------
Or in a page giving me the full details of that book only?
---------------------------------
The return of the amazing monster
---------------------------------
Summary:
Pages:
Publisher:
---------------------------------
My Opinion
I would suggest using the ID in the path variable when unicity is guarantied when getting this resource's details. For example, the APIs below suggest multiple ways to get the details for a specific resource (assuming a product has a unique ID and a spec for that product has a unique name and you can navigate top down):
/products/{id}
/products/{id}/specs/{name}
The moment you need more than 1 resource, I would suggest filtering from a larger collection. For the same example:
/products?ids=
Of course, this is my opinion as it is not imposed.
The error means the OS of the listening socket recognized the inbound connection request but chose to intentionally reject it.
Assuming an intermediate firewall is not getting in the way, there are only two reasons (that I know of) for the OS to reject an inbound connection request. One reason has already been mentioned several times - the listening port being connected to is not open.
There is another reason that has not been mentioned yet - the listening port is actually open and actively being used, but its backlog of queued inbound connection requests has reached its maximum so there is no room available for the inbound connection request to be queued at that moment. The server code has not called accept() enough times yet to finish clearing out available slots for new queue items.
Wait a moment or so and try the connection again. Unfortunately, there is no way to differentiate between "the port is not open at all" and "the port is open but too busy right now". They both use the same generic error code.
Adding my localhost on Valid OAuth redirect URIs at https://developers.facebook.com/apps/YOUR_APP_ID/fb-login/ solved the problem!
And pay attention for one detail here:
In this case http://localhost:3000 is not the same of http://0.0.0.0:3000 or http://127.0.0.1:3000
Make sure you are using exactly the running url of you sandbox server. I spend some time to discover that...
In your first example, you are correct. The batch will hit the commit transaction, regardless of whether the try block fires.
In your second example, I agree with other commenters. Using the success flag is unnecessary.
I consider the following approach to be, essentially, a light weight best practice approach.
If you want to see how it handles an exception, change the value on the second insert from 255 to 256.
CREATE TABLE #TEMP ( ID TINYINT NOT NULL );
INSERT INTO #TEMP( ID ) VALUES ( 1 )
BEGIN TRY
BEGIN TRANSACTION
INSERT INTO #TEMP( ID ) VALUES ( 2 )
INSERT INTO #TEMP( ID ) VALUES ( 255 )
COMMIT TRANSACTION
END TRY
BEGIN CATCH
DECLARE
@ErrorMessage NVARCHAR(4000),
@ErrorSeverity INT,
@ErrorState INT;
SELECT
@ErrorMessage = ERROR_MESSAGE(),
@ErrorSeverity = ERROR_SEVERITY(),
@ErrorState = ERROR_STATE();
RAISERROR (
@ErrorMessage,
@ErrorSeverity,
@ErrorState
);
ROLLBACK TRANSACTION
END CATCH
SET NOCOUNT ON
SELECT ID
FROM #TEMP
DROP TABLE #TEMP
The right way is to use SwingFXUtils.toFXImage(bufferedImage,null)
to convert a BufferedImage to a JavaFX Image instance and SwingFXUtils.fromFXImage(image,null)
for the inverse operation.
Optionally the second parameter can be a WritableImage to avoid further object allocation.
If you mean using an attribute selector, sure, why not:
[data-role="page"] {
/* Styles */
}
There are a variety of attribute selectors you can use for various scenarios which are all covered in the document I link to. Note that, despite custom data attributes being a "new HTML5 feature",
browsers typically don't have any problems supporting non-standard attributes, so you should be able to filter them with attribute selectors; and
you don't have to worry about CSS validation either, as CSS doesn't care about non-namespaced attribute names as long as they don't break the selector syntax.
I have this same requirement - we want to put logs in a specific root directory that should exist within the environment.
public static readonly string DefaultLogFilePath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
If I want to combine this with a sub-directory, I should be able to use Path.Combine( ... )
.
The GetFolderPath
method has an overload for special folder options which allows you to control whether the specified path be created or simply verified.
you can check by putting these code in php file.
<?php
if(in_array ('curl', get_loaded_extensions())) {
echo "CURL is available on your web server";
}
else{
echo "CURL is not available on your web server";
}
OR
var_dump(extension_loaded('curl'));
This is what I used in a project, parses a single line of data.
private string[] csvParser(string csv, char separator = ',')
{
List <string> = new <string>();
string[] temp = csv.Split(separator);
int counter = 0;
string data = string.Empty;
while (counter < temp.Length)
{
data = temp[counter].Trim();
if (data.Trim().StartsWith("\""))
{
bool isLast = false;
while (!isLast && counter < temp.Length)
{
data += separator.ToString() + temp[counter + 1];
counter++;
isLast = (temp[counter].Trim().EndsWith("\""));
}
}
parsed.Add(data);
counter++;
}
return parsed.ToArray();
}
http://zamirsblog.blogspot.com/2013/09/c-csv-parser-csvparser.html
With SASS, the clearfix is:
@mixin clearfix {
&:before, &:after {
content: '';
display: table;
}
&:after {
clear: both;
}
*zoom: 1;
}
and it's used like:
.container {
@include clearfix;
}
if you want the new clearfix:
@mixin newclearfix {
&:after {
content:"";
display:table;
clear:both;
}
}
An immutable object is the one you cannot modify after you create it. A typical example are string literals.
A D programming language, which becomes increasingly popular, has a notion of "immutability" through "invariant" keyword. Check this Dr.Dobb's article about it - http://dobbscodetalk.com/index.php?option=com_myblog&show=Invariant-Strings.html&Itemid=29 . It explains the problem perfectly.
I ran into a same problem. I was running portable version of android studio so downloaded a package from https://developer.android.com/studio/#downloads and installed it, and like that, done!
You will want to set the MdiParent
property of your new form to the name of the MDI parent form, as follows:
dim form as new yourform
form.show()
form.MdiParent = nameParent
Welcome to the future!
Right now we have a "responseURL" property from xhr object. YAY!
See How to get response url in XMLHttpRequest?
However, jQuery (at least 1.7.1) doesn't give an access to XMLHttpRequest object directly. You can use something like this:
var xhr;
var _orgAjax = jQuery.ajaxSettings.xhr;
jQuery.ajaxSettings.xhr = function () {
xhr = _orgAjax();
return xhr;
};
jQuery.ajax('http://test.com', {
success: function(responseText) {
console.log('responseURL:', xhr.responseURL, 'responseText:', responseText);
}
});
It's not a clean solution and i suppose jQuery team will make something for responseURL in the future releases.
TIP: just compare original URL with responseUrl. If it's equal then no redirect was given. If it's "undefined" then responseUrl is probably not supported. However as Nick Garvey said, AJAX request never has the opportunity to NOT follow the redirect but you may resolve a number of tasks by using responseUrl property.
Provide the directory on the command line:
svn checkout file:///home/landonwinters/svn/waterproject/trunk public_html
Or you can do
public class Person
{
public Person(int id)
{
this.Id=id;
}
public string Name { get; set; }
public int Id { get; private set; }
public int Age { get; set; }
}
Although GitHub removed the private messaging feature, there's still an alternative.
GitHub host git repositories. If the user you're willing to communicate with has ever committed some code, there are good chances you may reach your goal. Indeed, within each commit is stored some information about the author of the change or the one who accepted it.
Provided you're really dying to exchange with user user_test
git clone https://github.com/..../repository.git
git checkout [branch]
git log -50
As a committer/author, an email should be displayed along with the commit data.
Note: Every warning related to unsolicited email should apply there. Do not spam.
For me, I had to remove the intellij internal sdk and started to use my local sdk. When I started to use the internal, the error was gone.
Not sure if anyone else will find this helpful, but I encountered the same error and searched all over for any anonymous users...and there weren't any. The problem ended up being that the user account was set to "Require SSL" - which I found in PHPMyAdmin by going to User Accounts and clicking on Edit Privileges for the user. As soon as I unchecked this option, everything worked as expected!
To update @Sunil answer: Under Windows, Miniconda has a regular uninstaller. Go to the menu "Settings/Apps/Apps&Features", or click the Start button, type "uninstall", then click on "Add or Remove Programs" and finally on the Miniconda uninstaller.
I had this same issue now and found that my sub-projects 'Public Header Folder Path' was set to an incorrect path (when compared with what my main project was using as its 'Header Search Path' and 'User Header Search Path').
e.g.
My main project had the following:
And the same for the User Header Search Paths
Whereas my sub-project (dependency) had the following:
Changing the 'Public Header Folder Path' to "../../Headers/BoxSDK" fixed the problem since the main project was already searching that folder ('../../Headers').
PS: I took some good screenshots, but I am not allowed to post an answer with images until I hit reputation 10 :(
In Android Studio 3.0 and later do this:
View > Tool Windows > Device File Explorer
Simple socket server app example
I've already posted a client example at: https://stackoverflow.com/a/35971718/895245 , so here goes a server example.
This example app runs a server that returns a ROT-1 cypher of the input.
You would then need to add an Exit
button + some sleep delays, but this should get you started.
To play with it:
netcat $PHONE_IP 12345
Android sockets are the same as Java's, except we have to deal with some permission issues.
src/com/cirosantilli/android_cheat/socket/Main.java
package com.cirosantilli.android_cheat.socket;
import android.app.Activity;
import android.app.IntentService;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintStream;
import java.net.ServerSocket;
import java.net.Socket;
public class Main extends Activity {
static final String TAG = "AndroidCheatSocket";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
Log.d(Main.TAG, "onCreate");
Main.this.startService(new Intent(Main.this, MyService.class));
}
public static class MyService extends IntentService {
public MyService() {
super("MyService");
}
@Override
protected void onHandleIntent(Intent intent) {
Log.d(Main.TAG, "onHandleIntent");
final int port = 12345;
ServerSocket listener = null;
try {
listener = new ServerSocket(port);
Log.d(Main.TAG, String.format("listening on port = %d", port));
while (true) {
Log.d(Main.TAG, "waiting for client");
Socket socket = listener.accept();
Log.d(Main.TAG, String.format("client connected from: %s", socket.getRemoteSocketAddress().toString()));
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
PrintStream out = new PrintStream(socket.getOutputStream());
for (String inputLine; (inputLine = in.readLine()) != null;) {
Log.d(Main.TAG, "received");
Log.d(Main.TAG, inputLine);
StringBuilder outputStringBuilder = new StringBuilder("");
char inputLineChars[] = inputLine.toCharArray();
for (char c : inputLineChars)
outputStringBuilder.append(Character.toChars(c + 1));
out.println(outputStringBuilder);
}
}
} catch(IOException e) {
Log.d(Main.TAG, e.toString());
}
}
}
}
We need a Service
or other background method or else: How do I fix android.os.NetworkOnMainThreadException?
AndroidManifest.xml
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.cirosantilli.android_cheat.socket"
android:versionCode="1"
android:versionName="1.0">
<uses-sdk android:minSdkVersion="22" />
<uses-permission android:name="android.permission.INTERNET" />
<application android:label="AndroidCheatsocket">
<activity android:name="Main">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name=".Main$MyService" />
</application>
</manifest>
We must add: <uses-permission android:name="android.permission.INTERNET" />
or else: Java socket IOException - permission denied
On GitHub with a build.xml
: https://github.com/cirosantilli/android-cheat/tree/92de020d0b708549a444ebd9f881de7b240b3fbc/socket
You can do the whole static initializer thing as detailed above, but it can be a real bummer when your array size changes (when your array embiggens, if you don't add the appropriate extra initializers you get garbage).
memset gives you a runtime hit for doing the work, but no code size hit done right is immune to array size changes. I would use this solution in nearly all cases when the array was larger than, say, a few dozen elements.
If it was really important that the array was statically declared, I'd write a program to write the program for me and make it part of the build process.
var = False
if not var: print 'learnt stuff'
Here you go:
<?php
$html = '<p style="border: 1px solid red;">Test</p>';
echo preg_replace('/<p style="(.+?)">(.+?)<\/p>/i', "<p>$2</p>", $html);
?>
By the way, as pointed out by others, regex are not suggested for this.
At least with Miniconda (I assume it's the same for Anaconda), within the environment folder, the packages are installed in a folder called \conda-meta.
i.e.
C:\Users\username\Miniconda3\envs\environmentname\conda-meta
If you install on the base environment, the location is:
C:\Users\username\Miniconda3\pkgs
Use
$route.reload();
remember to inject $route
to your controller.
Most basic possible copy/paste complete runnable example of using a custom class as the key for an unordered_map
(basic implementation of a sparse matrix):
// UnorderedMapObjectAsKey.cpp
#include <iostream>
#include <vector>
#include <unordered_map>
struct Pos
{
int row;
int col;
Pos() { }
Pos(int row, int col)
{
this->row = row;
this->col = col;
}
bool operator==(const Pos& otherPos) const
{
if (this->row == otherPos.row && this->col == otherPos.col) return true;
else return false;
}
struct HashFunction
{
size_t operator()(const Pos& pos) const
{
size_t rowHash = std::hash<int>()(pos.row);
size_t colHash = std::hash<int>()(pos.col) << 1;
return rowHash ^ colHash;
}
};
};
int main(void)
{
std::unordered_map<Pos, int, Pos::HashFunction> umap;
// at row 1, col 2, set value to 5
umap[Pos(1, 2)] = 5;
// at row 3, col 4, set value to 10
umap[Pos(3, 4)] = 10;
// print the umap
std::cout << "\n";
for (auto& element : umap)
{
std::cout << "( " << element.first.row << ", " << element.first.col << " ) = " << element.second << "\n";
}
std::cout << "\n";
return 0;
}
According to the below scenario ,
Let's say that someone makes a request to your server with data that is in the correct format, but is simply not "good" data. So for example, imagine that someone posted a String value to an API endpoint that expected a String value; but, the value of the string contained data that was blacklisted (ex. preventing people from using "password" as their password). then the status code could be either 400 or 422 ?
Until now, I would have returned a "400 Bad Request", which, according to the w3.org, means:
The request could not be understood by the server due to malformed syntax. The client SHOULD NOT repeat the request without modifications.
This description doesn't quite fit the circumstance; but, if you go by the list of core HTTP status codes defined in the HTTP/1.1 protocol, it's probably your best bet.
Recently, however, Someone from my Dev team pointed out [to me] that popular APIs are starting to use HTTP extensions to get more granular with their error reporting. Specifically, many APIs, like Twitter and Recurly, are using the status code "422 Unprocessable Entity" as defined in the HTTP extension for WebDAV. HTTP status code 422 states:
The 422 (Unprocessable Entity) status code means the server understands the content type of the request entity (hence a 415 (Unsupported Media Type) status code is inappropriate), and the syntax of the request entity is correct (thus a 400 (Bad Request) status code is inappropriate) but was unable to process the contained instructions. For example, this error condition may occur if an XML request body contains well-formed (i.e., syntactically correct), but semantically erroneous, XML instructions.
Going back to our password example from above, this 422 status code feels much more appropriate. The server understands what you're trying to do; and it understands the data that you're submitting; it simply won't let that data be processed.
In theory, there's nothing preventing you from sending a request body in a GET
request. The HTTP protocol allows it, but have no defined semantics, so it's up to you to document what exactly is going to happen when a client sends a GET
payload. For instance, you have to define if parameters in a JSON body are equivalent to querystring parameters or something else entirely.
However, since there are no clearly defined semantics, you have no guarantee that implementations between your application and the client will respect it. A server or proxy might reject the whole request, or ignore the body, or anything else. The REST way to deal with broken implementations is to circumvent it in a way that's decoupled from your application, so I'd say you have two options that can be considered best practices.
The simple option is to use POST
instead of GET
as recommended by other answers. Since POST
is not standardized by HTTP, you'll have to document how exactly that's supposed to work.
Another option, which I prefer, is to implement your application assuming the GET
payload is never tampered with. Then, in case something has a broken implementation, you allow clients to override the HTTP method with the X-HTTP-Method-Override
, which is a popular convention for clients to emulate HTTP methods with POST
. So, if a client has a broken implementation, it can write the GET
request as a POST
, sending the X-HTTP-Method-Override: GET
method, and you can have a middleware that's decoupled from your application implementation and rewrites the method accordingly. This is the best option if you're a purist.
For me, it helped after I changed the theme to 'mac' since I am running on a MacOSX.
Eclipse: >Preferences > General > Appearance > Choose 'Mac' from the menu.
http://www.mrexcel.com/td0097.html
Dim WS as Worksheet
Set WS = Sheets.Add
You don't have to know where it's located, or what it's name is, you just refer to it as WS.
If you still want to do this the "old fashioned" way, try this:
Sheets.Add.Name = "Test"
This method opens already created excel file, Autofit all columns of all sheets based on 3rd Row. As you can see Range is selected From "A3 to K3" in excel.
public static void AutoFitExcelSheets()
{
Microsoft.Office.Interop.Excel.Application _excel = null;
Microsoft.Office.Interop.Excel.Workbook excelWorkbook = null;
try
{
string ExcelPath = ApplicationData.PATH_EXCEL_FILE;
_excel = new Microsoft.Office.Interop.Excel.Application();
_excel.Visible = false;
object readOnly = false;
object isVisible = true;
object missing = System.Reflection.Missing.Value;
excelWorkbook = _excel.Workbooks.Open(ExcelPath,
0, false, 5, "", "", false, Microsoft.Office.Interop.Excel.XlPlatform.xlWindows, "",
true, false, 0, true, false, false);
Microsoft.Office.Interop.Excel.Sheets excelSheets = excelWorkbook.Worksheets;
foreach (Microsoft.Office.Interop.Excel.Worksheet currentSheet in excelSheets)
{
string Name = currentSheet.Name;
Microsoft.Office.Interop.Excel.Worksheet excelWorksheet = (Microsoft.Office.Interop.Excel.Worksheet)excelSheets.get_Item(Name);
Microsoft.Office.Interop.Excel.Range excelCells =
(Microsoft.Office.Interop.Excel.Range)excelWorksheet.get_Range("A3", "K3");
excelCells.Columns.AutoFit();
}
}
catch (Exception ex)
{
ProjectLog.AddError("EXCEL ERROR: Can not AutoFit: " + ex.Message);
}
finally
{
excelWorkbook.Close(true, Type.Missing, Type.Missing);
GC.Collect();
GC.WaitForPendingFinalizers();
releaseObject(excelWorkbook);
releaseObject(_excel);
}
}
if you have properties in your class this line of code is OK !!
PropertyDescriptorCollection props =
TypeDescriptor.GetProperties(typeof(T));
but if you have all public fields then use this:
public static DataTable ToDataTable<T>( IList<T> data)
{
FieldInfo[] myFieldInfo;
Type myType = typeof(T);
// Get the type and fields of FieldInfoClass.
myFieldInfo = myType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance
| BindingFlags.Public);
DataTable dt = new DataTable();
for (int i = 0; i < myFieldInfo.Length; i++)
{
FieldInfo property = myFieldInfo[i];
dt.Columns.Add(property.Name, property.FieldType);
}
object[] values = new object[myFieldInfo.Length];
foreach (T item in data)
{
for (int i = 0; i < values.Length; i++)
{
values[i] = myFieldInfo[i].GetValue(item);
}
dt.Rows.Add(values);
}
return dt;
}
the original answer is from above , I just edited to use fields instead of properties
and to use it do this
DataTable dt = new DataTable();
dt = ToDataTable(myBriefs);
gridData.DataSource = dt;
gridData.DataBind();
From Python version 2.6 on you can use multiple arguments to set.intersection()
, like
u = set.intersection(s1, s2, s3)
If the sets are in a list, this translates to:
u = set.intersection(*setlist)
where *a_list
is list expansion
Note that set.intersection
is not a static method, but this uses the functional notation to apply intersection of the first set with the rest of the list. So if the argument list is empty this will fail.
What about using an extension method?
public static bool AnyOrNotNull<T>(this IEnumerable<T> source)
{
if (source != null && source.Any())
return true;
else
return false;
}
This is my c++11 style solution. parameter 'base' is for base class of all sub-classes. creators, are std::function objects to create sub-class instances, might be a binding to your sub-class' static member function 'create(some args)'. This maybe not perfect but works for me. And it is kinda 'general' solution.
template <class base, class... params> class factory {
public:
factory() {}
factory(const factory &) = delete;
factory &operator=(const factory &) = delete;
auto create(const std::string name, params... args) {
auto key = your_hash_func(name.c_str(), name.size());
return std::move(create(key, args...));
}
auto create(key_t key, params... args) {
std::unique_ptr<base> obj{creators_[key](args...)};
return obj;
}
void register_creator(const std::string name,
std::function<base *(params...)> &&creator) {
auto key = your_hash_func(name.c_str(), name.size());
creators_[key] = std::move(creator);
}
protected:
std::unordered_map<key_t, std::function<base *(params...)>> creators_;
};
An example on usage.
class base {
public:
base(int val) : val_(val) {}
virtual ~base() { std::cout << "base destroyed\n"; }
protected:
int val_ = 0;
};
class foo : public base {
public:
foo(int val) : base(val) { std::cout << "foo " << val << " \n"; }
static foo *create(int val) { return new foo(val); }
virtual ~foo() { std::cout << "foo destroyed\n"; }
};
class bar : public base {
public:
bar(int val) : base(val) { std::cout << "bar " << val << "\n"; }
static bar *create(int val) { return new bar(val); }
virtual ~bar() { std::cout << "bar destroyed\n"; }
};
int main() {
common::factory<base, int> factory;
auto foo_creator = std::bind(&foo::create, std::placeholders::_1);
auto bar_creator = std::bind(&bar::create, std::placeholders::_1);
factory.register_creator("foo", foo_creator);
factory.register_creator("bar", bar_creator);
{
auto foo_obj = std::move(factory.create("foo", 80));
foo_obj.reset();
}
{
auto bar_obj = std::move(factory.create("bar", 90));
bar_obj.reset();
}
}
That's how I achieved it, which is not visible (HORRIBLE SOUND....)
<!-- horrible is your mp3 file name any other supported format.-->
<audio controls autoplay hidden="" src="horrible.mp3" type ="audio/mp3"">your browser does not support Html5</audio>
None of the above worked for me. Here's what I ended up using:
/^(?:((?:https?|s?ftp):)\/\/)([^:\/\s]+)(?::(\d*))?(?:\/([^\s?#]+)?([?][^?#]*)?(#.*)?)?/
.split method will work, but it uses regular expressions. In this example it would be (to steal from Cristian):
String[] separated = CurrentString.split("\\:");
separated[0]; // this will contain "Fruit"
separated[1]; // this will contain " they taste good"
Also, this came from: Android split not working correctly
The more simple solution is provided in Eric Isaacs's answer. However, it will find constraints on any table. If you want to target a foreign key constraint on a specific table, use this:
IF EXISTS (SELECT *
FROM sys.foreign_keys
WHERE object_id = OBJECT_ID(N'dbo.FK_TableName_TableName2')
AND parent_object_id = OBJECT_ID(N'dbo.TableName')
)
ALTER TABLE [dbo.TableName] DROP CONSTRAINT [FK_TableName_TableName2]
For me this did the trick at port 80 in the end:
You have to disable the http.sys service manually via the registry:
You should now find that Apache will start on port 80!
If you are using xampp you can find php.ini
file by going into xampp control panel and and clicking config
button in front of Apache.
You can use codecs.
import codecs
with open("test.txt",'r') as filehandle:
content = filehandle.read()
if content[:3] == codecs.BOM_UTF8:
content = content[3:]
print content.decode("utf-8")
For those people using Python, you might consider Selenium Wire, a library for inspecting requests made by the browser during a test.
You get access to requests via the driver.requests
attribute:
from seleniumwire import webdriver # Import from seleniumwire
# Create a new instance of the Firefox driver
driver = webdriver.Firefox()
# Go to the Google home page
driver.get('https://www.google.com')
# Access requests via the `requests` attribute
for request in driver.requests:
if request.response:
print(
request.url,
request.response.status_code,
request.response.headers['Content-Type']
)
Prints:
https://www.google.com/ 200 text/html; charset=UTF-8
https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_120x44dp.png 200 image/png
https://consent.google.com/status?continue=https://www.google.com&pc=s×tamp=1531511954&gl=GB 204 text/html; charset=utf-8
https://www.google.com/images/branding/googlelogo/2x/googlelogo_color_272x92dp.png 200 image/png
https://ssl.gstatic.com/gb/images/i2_2ec824b0.png 200 image/png
https://www.google.com/gen_204?s=webaft&t=aft&atyp=csi&ei=kgRJW7DBONKTlwTK77wQ&rt=wsrt.366,aft.58,prt.58 204 text/html; charset=UTF-8
...
The library gives you the ability to access headers, status code, body content, as well as the ability to modify headers and rewrite URLs.
Another way of displaying objects within the console is with JSON.stringify
. Checkout the below example:
var gandalf = {
"real name": "Gandalf",
"age (est)": 11000,
"race": "Maia",
"haveRetirementPlan": true,
"aliases": [
"Greyhame",
"Stormcrow",
"Mithrandir",
"Gandalf the Grey",
"Gandalf the White"
]
};
//to console log object, we cannot use console.log("Object gandalf: " + gandalf);
console.log("Object gandalf: ");
//this will show object gandalf ONLY in Google Chrome NOT in IE
console.log(gandalf);
//this will show object gandalf IN ALL BROWSERS!
console.log(JSON.stringify(gandalf));
//this will show object gandalf IN ALL BROWSERS! with beautiful indent
console.log(JSON.stringify(gandalf, null, 4));
You can use the ansible.cfg file, it should look like this (There are other parameters which you might want to include):
[defaults]
inventory = <PATH TO INVENTORY FILE>
remote_user = <YOUR USER>
private_key_file = <PATH TO KEY_FILE>
Hope this saves you some typing
Surround what you want to be bold with:
<span style="font-weight:bold">Your bold text</span>
This would go inside your <td>
tag.
for XML android
android:src="@drawable/foto1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
It's pretty easy.
At the first there is a deprecated arguments.callee
— a reference to called function.
At the second if you have a reference to your function you can easily get their textual representation.
At the third if you calling your function as constructor you can also have a link via yourObject.constructor.
NB: The first solution deprecated so if you can't to not use it you must also think about your app architecture.
If you don't need exact variable names just use inside a function internal variable arguments
without any magic.
All of them going to call toString and replace with re so we can create a helper:
// getting names of declared parameters
var getFunctionParams = function (func) {
return String(func).replace(/[^\(]+\(([^\)]*)\).*/m, '$1');
}
Some examples:
// Solution 1. deprecated! don't use it!
var myPrivateFunction = function SomeFuncName (foo, bar, buz) {
console.log(getFunctionParams(arguments.callee));
};
myPrivateFunction (1, 2);
// Solution 2.
var myFunction = function someFunc (foo, bar, buz) {
// some code
};
var params = getFunctionParams(myFunction);
console.log(params);
// Solution 3.
var cls = function SuperKewlClass (foo, bar, buz) {
// some code
};
var inst = new cls();
var params = getFunctionParams(inst.constructor);
console.log(params);
Enjoy with JS!
UPD: Jack Allan was provided a little bit better solution actually. GJ Jack!
What I've done on my side:
Went to the /usr/local/lib/node_modules
, and deleted the yarn
folder inside it.
You can find all database names with this:-
select name from sys.sysdatabases
Check to see if the key-value pair is actually showing up in the request:
In Chrome, found somewhere like: F12: Developer Tools > Network Tab > Whatever request you have sent > "view source" under Response Headers
Depending on your testing workflow, if whatever pair you added isn't there, you may just need to clear your browser cache. To verify that your browser is using your most up-to-date code, you can check the page's sources, in Chrome this is found somewhere like:
F12: Developer Tools > Sources Tab > YourJavascriptSrc.js
and check your code.
But as other answers have said:
xhttp.setRequestHeader(key, value);
should add a key-value pair to your request header, just make sure to place it after your open()
and before your send()
Without the new
keyword you're storing that on call stack. Storing excessively large variables on stack will lead to stack overflow.
I suggest using Vladimir Keleshev's pep257 Python program to check your docstrings against PEP-257 and the Numpy Docstring Standard for describing parameters, returns, etc.
pep257 will report divergence you make from the standard and is called like pylint and pep8.
Based on Guillaume Bodi's answer I did this:
$('.fileinputbar-button').on('click', function() {
$('article.project_files > header, article.upload').show();
$('article.project_files > header, article.upload header').addClass('active');
$('.file_content, article.upload .content').show();
$('.fileinput-button input').focus().click();
$('.fileinput-button').hide();
});
which means it's hidden to start with and then displayed for the trigger, then hidden again immediately.
It doesn't matter. In terms of REST, you can't do a GET, because it's not cacheable, but it doesn't matter if you use POST or PATCH or PUT or whatever, and it doesn't matter what the URL looks like. If you're doing REST, what matters is that when you get a representation of your resource from the server, that representation is able give the client state transition options.
If your GET response had state transitions, the client just needs to know how to read them, and the server can change them if needed. Here an update is done using POST, but if it was changed to PATCH, or if the URL changes, the client still knows how to make an update:
{
"customer" :
{
},
"operations":
[
"update" :
{
"method": "POST",
"href": "https://server/customer/123/"
}]
}
You could go as far as to list required/optional parameters for the client to give back to you. It depends on the application.
As far as business operations, that might be a different resource linked to from the customer resource. If you want to send an email to the customer, maybe that service is it's own resource that you can POST to, so you might include the following operation in the customer resource:
"email":
{
"method": "POST",
"href": "http://server/emailservice/send?customer=1234"
}
Some good videos, and example of the presenter's REST architecture are these. Stormpath only uses GET/POST/DELETE, which is fine since REST has nothing to do with what operations you use or how URLs should look (except GETs should be cacheable):
https://www.youtube.com/watch?v=pspy1H6A3FM,
https://www.youtube.com/watch?v=5WXYw4J4QOU,
http://docs.stormpath.com/rest/quickstart/
Firstly, PHP doesn't have multi-dimensional arrays, it has arrays of arrays.
Secondly, you can write a function that will do it:
function declare($m, $n, $value = 0) {
return array_fill(0, $m, array_fill(0, $n, $value));
}
There is one more stacktrace feature offered by Throwable family - the possibility to manipulate stack trace information.
Standard behavior:
package test.stack.trace;
public class SomeClass {
public void methodA() {
methodB();
}
public void methodB() {
methodC();
}
public void methodC() {
throw new RuntimeException();
}
public static void main(String[] args) {
new SomeClass().methodA();
}
}
Stack trace:
Exception in thread "main" java.lang.RuntimeException
at test.stack.trace.SomeClass.methodC(SomeClass.java:18)
at test.stack.trace.SomeClass.methodB(SomeClass.java:13)
at test.stack.trace.SomeClass.methodA(SomeClass.java:9)
at test.stack.trace.SomeClass.main(SomeClass.java:27)
Manipulated stack trace:
package test.stack.trace;
public class SomeClass {
...
public void methodC() {
RuntimeException e = new RuntimeException();
e.setStackTrace(new StackTraceElement[]{
new StackTraceElement("OtherClass", "methodX", "String.java", 99),
new StackTraceElement("OtherClass", "methodY", "String.java", 55)
});
throw e;
}
public static void main(String[] args) {
new SomeClass().methodA();
}
}
Stack trace:
Exception in thread "main" java.lang.RuntimeException
at OtherClass.methodX(String.java:99)
at OtherClass.methodY(String.java:55)
You can do like follow:
String date = DateTime.Now.Date.ToString();
String Month = DateTime.Now.Month.ToString();
String Year = DateTime.Now.Year.ToString();
On the place of datetime you can use your column..
this happens because the compiler or the interpreter is finding more than one package of the file, delete all the number of same package you have and then keep only one and then try to install. It serves
You can also reference a local gem with git if you happen to be working on it.
gem 'foo',
:git => '/Path/to/local/git/repo',
:branch => 'my-feature-branch'
Then, if it changes I run
bundle exec gem uninstall foo
bundle update foo
But I am not sure everyone needs to run these two steps.
Netscantools Pro Ping can do ICMP, UDP, and TCP.
That's correct, your response is an object with fields:
{
"page": 1,
"results": [ ... ]
}
So you in fact want to iterate the results
field only:
this.data = res.json()['results'];
... or even easier:
this.data = res.json().results;
Actually both methods are valid but it depends upon your requirement. Passing values by reference often makes your script slow. So it's better to pass variables by value considering time of execution. Also the code flow is more consistent when you pass variables by value.
You can use below code for your solution:-
public void Linq94()
{
int[] numbersA = { 0, 2, 4, 5, 6, 8, 9 };
int[] numbersB = { 1, 3, 5, 7, 8 };
var allNumbers = numbersA.Concat(numbersB);
Console.WriteLine("All numbers from both arrays:");
foreach (var n in allNumbers)
{
Console.WriteLine(n);
}
}
This error you are receiving :
SQLSTATE[HY093]: Invalid parameter number: parameter was not defined
is because the number of elements in $values
& $matches
is not the same or $matches
contains more than 1 element.
If $matches
contains more than 1 element, than the insert will fail, because there is only 1 column name referenced in the query(hash
)
If $values
& $matches
do not contain the same number of elements then the insert will also fail, due to the query expecting x params but it is receiving y data $matches
.
I believe you will also need to ensure the column hash has a unique index on it as well.
Try the code here:
<?php
/*** mysql hostname ***/
$hostname = 'localhost';
/*** mysql username ***/
$username = 'root';
/*** mysql password ***/
$password = '';
try {
$dbh = new PDO("mysql:host=$hostname;dbname=test", $username, $password);
/*** echo a message saying we have connected ***/
echo 'Connected to database';
}
catch(PDOException $e)
{
echo $e->getMessage();
}
$matches = array('1');
$count = count($matches);
for($i = 0; $i < $count; ++$i) {
$values[] = '?';
}
// INSERT INTO DATABASE
$sql = "INSERT INTO hashes (hash) VALUES (" . implode(', ', $values) . ") ON DUPLICATE KEY UPDATE hash='hash'";
$stmt = $dbh->prepare($sql);
$data = $stmt->execute($matches);
//Error reporting if something went wrong...
var_dump($dbh->errorInfo());
?>
You will need to adapt it a little.
Table structure I used is here:
CREATE TABLE IF NOT EXISTS `hashes` (
`hashid` int(11) NOT NULL AUTO_INCREMENT,
`hash` varchar(250) NOT NULL,
PRIMARY KEY (`hashid`),
UNIQUE KEY `hash1` (`hash`)
) ENGINE=InnoDB DEFAULT CHARSET=latin1 AUTO_INCREMENT=1 ;
Code was run on my XAMPP Server which is using PHP 5.3.8 with MySQL 5.5.16.
I hope this helps.
For Bootstrap 4
<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet"/>_x000D_
_x000D_
<div class="input-group">_x000D_
<input type="text" class="form-control" placeholder="Start"/>_x000D_
<div class="input-group-prepend">_x000D_
<span class="input-group-text" id="">-</span>_x000D_
</div>_x000D_
<input type="text" class="form-control" placeholder="End"/>_x000D_
</div>
_x000D_
You might like the function GetInfoFromClosedFile()
Edit: Since the above link does not seem to work anymore, I am adding alternate link 1 and alternate link 2 + code:
Private Function GetInfoFromClosedFile(ByVal wbPath As String, _
wbName As String, wsName As String, cellRef As String) As Variant
Dim arg As String
GetInfoFromClosedFile = ""
If Right(wbPath, 1) <> "" Then wbPath = wbPath & ""
If Dir(wbPath & "" & wbName) = "" Then Exit Function
arg = "'" & wbPath & "[" & wbName & "]" & _
wsName & "'!" & Range(cellRef).Address(True, True, xlR1C1)
On Error Resume Next
GetInfoFromClosedFile = ExecuteExcel4Macro(arg)
End Function
For some databases, you can just explicitly insert a NULL
into the auto_increment
column:
INSERT INTO table_name VALUES (NULL, 'my name', 'my group')
HTML
<div id="container">
<div id="element">
some text
</div>
</div>
CSS
#container {
width: 50%; /* desired width */
}
#element {
height: 0;
padding-bottom: 100%;
}
Here is a function that I use (slightly redacted). It allows input and output parameters. I only have uniqueidentifier and varchar types implemented, but any other types are easy to add. If you use parameterized stored procedures (or just parameterized sql...this code is easily adapted to that), this will make your life a lot easier.
To call the function, you need a connection to the SQL server (say $conn),
$res=exec-storedprocedure -storedProcName 'stp_myProc' -parameters @{Param1="Hello";Param2=50} -outparams @{ID="uniqueidentifier"} $conn
retrieve proc output from returned object
$res.data #dataset containing the datatables returned by selects
$res.outputparams.ID #output parameter ID (uniqueidentifier)
The function:
function exec-storedprocedure($storedProcName,
[hashtable] $parameters=@{},
[hashtable] $outparams=@{},
$conn,[switch]$help){
function put-outputparameters($cmd, $outparams){
foreach($outp in $outparams.Keys){
$cmd.Parameters.Add("@$outp", (get-paramtype $outparams[$outp])).Direction=[System.Data.ParameterDirection]::Output
}
}
function get-outputparameters($cmd,$outparams){
foreach($p in $cmd.Parameters){
if ($p.Direction -eq [System.Data.ParameterDirection]::Output){
$outparams[$p.ParameterName.Replace("@","")]=$p.Value
}
}
}
function get-paramtype($typename,[switch]$help){
switch ($typename){
'uniqueidentifier' {[System.Data.SqlDbType]::UniqueIdentifier}
'int' {[System.Data.SqlDbType]::Int}
'xml' {[System.Data.SqlDbType]::Xml}
'nvarchar' {[System.Data.SqlDbType]::NVarchar}
default {[System.Data.SqlDbType]::Varchar}
}
}
if ($help){
$msg = @"
Execute a sql statement. Parameters are allowed.
Input parameters should be a dictionary of parameter names and values.
Output parameters should be a dictionary of parameter names and types.
Return value will usually be a list of datarows.
Usage: exec-query sql [inputparameters] [outputparameters] [conn] [-help]
"@
Write-Host $msg
return
}
$close=($conn.State -eq [System.Data.ConnectionState]'Closed')
if ($close) {
$conn.Open()
}
$cmd=new-object system.Data.SqlClient.SqlCommand($sql,$conn)
$cmd.CommandType=[System.Data.CommandType]'StoredProcedure'
$cmd.CommandText=$storedProcName
foreach($p in $parameters.Keys){
$cmd.Parameters.AddWithValue("@$p",[string]$parameters[$p]).Direction=
[System.Data.ParameterDirection]::Input
}
put-outputparameters $cmd $outparams
$ds=New-Object system.Data.DataSet
$da=New-Object system.Data.SqlClient.SqlDataAdapter($cmd)
[Void]$da.fill($ds)
if ($close) {
$conn.Close()
}
get-outputparameters $cmd $outparams
return @{data=$ds;outputparams=$outparams}
}
Since version 1.2, Django has QuerySet.exists() method which is the most efficient:
if orgs.exists():
# Do this...
else:
# Do that...
But if you are going to evaluate QuerySet anyway it's better to use:
if orgs:
...
For more information read QuerySet.exists() documentation.
You could use String.rstrip
.
result = string.rstrip('/')
I also had this problem, my solution was to have an element above the element i dont want a hover effect on:
.no-hover {_x000D_
position: relative;_x000D_
opacity: 0.65 !important;_x000D_
display: inline-block;_x000D_
}_x000D_
_x000D_
.no-hover::before {_x000D_
content: '';_x000D_
background-color: transparent;_x000D_
position: absolute;_x000D_
top: 0;_x000D_
left: 0;_x000D_
width: 100%;_x000D_
height: 100%;_x000D_
z-index: 60;_x000D_
}
_x000D_
<link href="https://stackpath.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" rel="stylesheet" />_x000D_
_x000D_
<button class="btn btn-primary">hover</button>_x000D_
<span class="no-hover">_x000D_
<button class="btn btn-primary ">no hover</button>_x000D_
</span>
_x000D_
String str = "1,2,3,4,5,6,7,8,9,0";
String items[] = str.split(",");
int ent[] = new int[items.length];
for(i=0;i<items.length;i++){
try{
ent[i] = Integer.parseInt(items[i]);
System.out.println("#"+i+": "+ent[i]);//Para probar
}catch(NumberFormatException e){
//Error
}
}
Here is another helpful solution for manually adding custom HTTP Headers to your client WCF request using the ChannelFactory
as a proxy. This would have to be done for each request, but suffices as a simple demo if you just need to unit test your proxy in preparation for non-.NET platforms.
// create channel factory / proxy ...
using (OperationContextScope scope = new OperationContextScope(proxy))
{
OperationContext.Current.OutgoingMessageProperties[HttpRequestMessageProperty.Name] = new HttpRequestMessageProperty()
{
Headers =
{
{ "MyCustomHeader", Environment.UserName },
{ HttpRequestHeader.UserAgent, "My Custom Agent"}
}
};
// perform proxy operations...
}
I received the same error message. To resolve this I just replaced the Oracle.ManagedDataAccess
assembly with the older Oracle.DataAccess
assembly. This solution may not work if you require new features found in the new assembly. In my case I have many more higher priority issues then trying to configure the new Oracle
assembly.
Another alternative but also inline solution using Enumerable
and LINQ
is:
int number = 25;
string binary = Enumerable.Range(0, (int) Math.Log(number, 2) + 1).Aggregate(string.Empty, (collected, bitshifts) => ((number >> bitshifts) & 1 )+ collected);
To extract the year from current date
SELECT YEAR(CURRENT_DATE())
IBM Netezza
extract(year from now())
HIVE
SELECT YEAR(CURRENT_DATE())
I am taking the one from DShook and providing a dedupe example where you would keep only the record with the highest date.
In this example say I have 3 records all with the same app_id, and I only want to keep the one with the highest date:
DELETE t
FROM @USER_OUTBOX_APPS t
INNER JOIN
(
SELECT
app_id
,max(processed_date) as max_processed_date
FROM @USER_OUTBOX_APPS
GROUP BY app_id
HAVING count(*) > 1
) t2 on
t.app_id = t2.app_id
WHERE
t.processed_date < t2.max_processed_date
It is valid.
However, standard practice is to use href="#"
or sometimes href="javascript:;"
.
You can only close windows/tabs that you create yourself. That is, you cannot programmatically close a window/tab that the user creates.
For example, if you create a window with window.open()
you can close it with window.close()
.
I have what i think is a better solution, since it is scalable to more levels, as many as wanted, not only two or three.
I use borders, but it can also be done with whateever style wanted, like background-color.
With the border, the idea is to:
You can test it at: http://jsbin.com/ubiyo3/13
And here is the code:
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Hierarchie Borders MarkUp</title>
<style>
.parent { display: block; position: relative; z-index: 0;
height: auto; width: auto; padding: 25px;
}
.parent-bg { display: block; height: 100%; width: 100%;
position: absolute; top: 0px; left: 0px;
border: 1px solid white; z-index: 0;
}
.parent-bg:hover { border: 1px solid red; }
.child { display: block; position: relative; z-index: 1;
height: auto; width: auto; padding: 25px;
}
.child-bg { display: block; height: 100%; width: 100%;
position: absolute; top: 0px; left: 0px;
border: 1px solid white; z-index: 0;
}
.child-bg:hover { border: 1px solid red; }
.grandson { display: block; position: relative; z-index: 2;
height: auto; width: auto; padding: 25px;
}
.grandson-bg { display: block; height: 100%; width: 100%;
position: absolute; top: 0px; left: 0px;
border: 1px solid white; z-index: 0;
}
.grandson-bg:hover { border: 1px solid red; }
</style>
</head>
<body>
<div class="parent">
Parent
<div class="child">
Child
<div class="grandson">
Grandson
<div class="grandson-bg"></div>
</div>
<div class="child-bg"></div>
</div>
<div class="parent-bg"></div>
</div>
</body>
</html>
The agg
function will do this for you. Pass the columns and function as a dict with column, output:
df.groupby(['Country', 'Item_Code']).agg({'Y1961': np.sum, 'Y1962': [np.sum, np.mean]}) # Added example for two output columns from a single input column
This will display only the group by columns, and the specified aggregate columns. In this example I included two agg functions applied to 'Y1962'.
To get exactly what you hoped to see, included the other columns in the group by, and apply sums to the Y variables in the frame:
df.groupby(['Code', 'Country', 'Item_Code', 'Item', 'Ele_Code', 'Unit']).agg({'Y1961': np.sum, 'Y1962': np.sum, 'Y1963': np.sum})
Your use case, seems perfect for CardLayout.
In card layout you can add multiple panels in the same place, but then show or hide, one panel at a time.
This can be an efficient way of performing different tests on a single statement
select
case colour_txt
when 'red' then 5
when 'green' then 4
when 'orange' then 3
else 0
end as Pass_Flag
this only works on equality comparisons!
You can have a regular Python module, say config.py, like this:
truck = dict(
color = 'blue',
brand = 'ford',
)
city = 'new york'
cabriolet = dict(
color = 'black',
engine = dict(
cylinders = 8,
placement = 'mid',
),
doors = 2,
)
and use it like this:
import config
print(config.truck['color'])
I am joining the choir recommending that you skip the now long outdated classes Date
, Calendar
, SimpleDateFormat
and friends. In particular I would warn against using the deprecated methods and constructors of the Date
class, like the Date(String)
constructor you used. They were deprecated because they don’t work reliably across time zones, so don’t use them. And yes, most of the constructors and methods of that class are deprecated.
While at the time you asked the question, Joda-Time was (from all I know) a clearly better alternative, time has moved on again. Today Joda-Time is a largely finished project, and its developers recommend you use java.time
, the modern Java date and time API, instead. I will show you how.
ZonedDateTime localTime = ZonedDateTime.now(ZoneId.systemDefault());
// Convert Local Time to UTC
OffsetDateTime gmtTime
= localTime.toOffsetDateTime().withOffsetSameInstant(ZoneOffset.UTC);
System.out.println("Local:" + localTime.toString()
+ " --> UTC time:" + gmtTime.toString());
// Reverse Convert UTC Time to Local time
localTime = gmtTime.atZoneSameInstant(ZoneId.systemDefault());
System.out.println("Local Time " + localTime.toString());
For starters, note that not only is the code only half as long as yours, it is also clearer to read.
On my computer the code prints:
Local:2017-09-02T07:25:46.211+02:00[Europe/Berlin] --> UTC time:2017-09-02T05:25:46.211Z
Local Time 2017-09-02T07:25:46.211+02:00[Europe/Berlin]
I left out the milliseconds from the epoch. You can always get them from System.currentTimeMillis();
as in your question, and they are independent of time zone, so I didn’t find them intersting here.
I hesitatingly kept your variable name localTime
. I think it’s a good name. The modern API has a class called LocalTime
, so using that name, only not capitalized, for an object that hasn’t got type LocalTime
might confuse some (a LocalTime
doesn’t hold time zone information, which we need to keep here to be able to make the right conversion; it also only holds the time-of-day, not the date).
Your conversion from local time to UTC was incorrect and impossible
The outdated Date
class doesn’t hold any time zone information (you may say that internally it always uses UTC), so there is no such thing as converting a Date
from one time zone to another. When I just ran your code on my computer, the first line it printed, was:
Local:Sat Sep 02 07:25:45 CEST 2017,1504329945967 --> UTC time:Sat Sep 02 05:25:45 CEST 2017-1504322745000
07:25:45 CEST
is correct, of course. The correct UTC time would have been 05:25:45 UTC
, but it says CEST
again, which is incorrect.
Now you will never need the Date
class again, :-) but if you were ever going to, the must-read would be All about java.util.Date on Jon Skeet’s coding blog.
Question: Can I use the modern API with my Java version?
If using at least Java 6, you can.
Add a Node class.
Then add a LinkedList class to implement the linked list
Add a test class to execute the linked list
namespace LinkedListProject
{
public class Node
{
public Node next;
public object data;
}
public class MyLinkedList
{
Node head;
public Node AddNodes(Object data)
{
Node node = new Node();
if (node.next == null)
{
node.data = data;
node.next = head;
head = node;
}
else
{
while (node.next != null)
node = node.next;
node.data = data;
node.next = null;
}
return node;
}
public void printnodes()
{
Node current = head;
while (current.next != null)
{
Console.WriteLine(current.data);
current = current.next;
}
Console.WriteLine(current.data);
}
}
[TestClass]
public class LinkedListExample
{
MyLinkedList linkedlist = new MyLinkedList();
[TestMethod]
public void linkedlisttest()
{
linkedlist.AddNodes("hello");
linkedlist.AddNodes("world");
linkedlist.AddNodes("now");
linkedlist.printnodes();
}
}
}
You can use this easiest method.
<form action="validator.php" method="post" id="form1">_x000D_
<input type="text" name="user">_x000D_
<input type="password" name="password">_x000D_
<input type="submit" value="submit" form="form1">_x000D_
</form>_x000D_
_x000D_
<br />_x000D_
_x000D_
<form action="validator.php" method="post" id="form2">_x000D_
<input type="text" name="user">_x000D_
<input type="password" name="password">_x000D_
<input type="submit" value="submit" form="form2">_x000D_
</form>
_x000D_
if you didnot set your activity style it shows you black background .if you want to make changes such as white background, black text of listview then it is difficult process.
ADD android:theme="@style/AppTheme" in Android Manifest.
Update: In an effort to answer my own question, here is what I've been able to uncover so far. If anyone else out there has something, I'd still be interested to find out more.
Based on JSON Schema
Commercial (No endorsement intended or implied, may or may not meet requirement)
jQuery
YAML
See Also
Go to
Keychain Access
-> Right-click on login
-> Lock & unlock again
Xcode
-> Clean Xcode project
->Make build again
In the Oracle RDBMS, it is possible to use a multi-row subquery in the select clause as long as the (sub-)output is encapsulated as a collection. In particular, a multi-row select clause subquery can output each of its rows as an xmlelement that is encapsulated in an xmlforest.
Also you can use default()
filter. Or just a shortcut d()
- name: Generating a new SSH key for the current user it's not exists already
local_action:
module: user
name: "{{ login_user.stdout }}"
generate_ssh_key: yes
ssh_key_bits: 2048
when:
- sshkey_result.rc == 1
- github_username | d('none') | lower == 'none'
Based on generality of this question, I think, that you'll need to setup your own HTTPS proxy on some server online. Do the following steps:
If you simply download remote site content via file_get_contents or similiar, you can still have insecure links to content. You'll have to find them with regex and also replace. Images are hard to solve, but Ï found workaround here: http://foundationphp.com/tutorials/image_proxy.php
Note: While this solution may have worked in some browsers when it was written in 2014, it no longer works. Navigating or redirecting to an HTTP URL in an
iframe
embedded in an HTTPS page is not permitted by modern browsers, even if the frame started out with an HTTPS URL.
The best solution I created is to simply use google as the ssl proxy...
https://www.google.com/search?q=%http://yourhttpsite.com&btnI=Im+Feeling+Lucky
Tested and works in firefox.
Other Methods:
Use a Third party such as embed.ly (but it it really only good for well known http APIs).
Create your own redirect script on an https page you control (a simple javascript redirect on a relative linked page should do the trick. Something like: (you can use any langauge/method)
https://example.com
That has a iframe linking to...
https://example.com/utilities/redirect.html
Which has a simple js redirect script like...
document.location.href ="http://thenonsslsite.com";
Alternatively, you could add an RSS feed or write some reader/parser to read the http site and display it within your https site.
You could/should also recommend to the http site owner that they create an ssl connection. If for no other reason than it increases seo.
Unless you can get the http site owner to create an ssl certificate, the most secure and permanent solution would be to create an RSS feed grabing the content you need (presumably you are not actually 'doing' anything on the http site -that is to say not logging in to any system).
The real issue is that having http elements inside a https site represents a security issue. There are no completely kosher ways around this security risk so the above are just current work arounds.
Note, that you can disable this security measure in most browsers (yourself, not for others). Also note that these 'hacks' may become obsolete over time.
Simplest solution seems to be specifying the ylim
range. Here is some code to do this automatically (left default, right - adjusted):
# default y-axis
barplot(dat, beside=TRUE)
# automatically adjusted y-axis
barplot(dat, beside=TRUE, ylim=range(pretty(c(0, dat))))
The trick is to use pretty()
which returns a list of interval breaks covering all values of the provided data. It guarantees that the maximum returned value is 1) a round number 2) greater than maximum value in the data.
In the example 0 was also added pretty(c(0, dat))
which makes sure that axis starts from 0.
For anyone else with this issue that arrives here via Google, please check that the host element of the *ngFor
directive is accurate. By this, I mean that I encountered this error and spent a long time researching fixes before realizing that I had put the *ngFor
on an ng-template
element instead of on my component I wanted to repeat.
Incorrect
<ng-template *ngFor=let group of groups$ | async" ...>
<my-component [prop1]="group.key" ... </my-component>
<\ng-template>
Correct
<my-component *ngFor=let group of groups$ | async" [prop1]="group.key" ... </my-component>
I know this is an obvious mistake in hindsight, but I hope an answer here will save someone the headache I now have.
In the spirit of functional programming, let's make our components a bit easier to work with by using abstractions.
// converts components into mappable functions
var mappable = function(component){
return function(x, i){
return component({key: i}, x);
}
}
// maps on 2-dimensional arrays
var map2d = function(m1, m2, xss){
return xss.map(function(xs, i, arr){
return m1(xs.map(m2), i, arr);
});
}
var td = mappable(React.DOM.td);
var tr = mappable(React.DOM.tr);
var th = mappable(React.DOM.th);
Now we can define our render like this:
render: function(){
return (
<table>
<thead>{this.props.titles.map(th)}</thead>
<tbody>{map2d(tr, td, this.props.rows)}</tbody>
</table>
);
}
An alternative to our map2d would be a curried map function, but people tend to shy away from currying.
-O
is the option to specify the path of the file you want to download to:
wget <uri> -O /path/to/file.ext
-P
is prefix where it will download the file in the directory:
wget <uri> -P /path/to/folder
Oracle has a different syntax for parameters than Sql-Server. So use :
instead of @
using(var con=new OracleConnection(connectionString))
{
con.open();
var sql = "insert into users values (:id,:name,:surname,:username)";
using(var cmd = new OracleCommand(sql,con)
{
OracleParameter[] parameters = new OracleParameter[] {
new OracleParameter("id",1234),
new OracleParameter("name","John"),
new OracleParameter("surname","Doe"),
new OracleParameter("username","johnd")
};
cmd.Parameters.AddRange(parameters);
cmd.ExecuteNonQuery();
}
}
When using named parameters in an OracleCommand you must precede the parameter name with a colon (:).
http://msdn.microsoft.com/en-us/library/system.data.oracleclient.oraclecommand.parameters.aspx
For security reasons, it is not possible to get the real, full path of a file, referred through an <input type="file" />
element.
This question already mentions, and links to other Stack Overflow questions regarding this topic.
string = string.split("\\");
In JavaScript, the backslash is used to escape special characters, such as newlines (\n
). If you want to use a literal backslash, a double backslash has to be used.
So, if you want to match two backslashes, four backslashes has to be used. For example,alert("\\\\")
will show a dialog containing two backslashes.
You can use <LinearLayout>
to group elements horizontaly. Also you should use style to set margins, background and other properties. This will allow you not to repeat code for every label you use.
Here is an example:
<LinearLayout
style="@style/FormItem"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal">
<TextView
style="@style/FormLabel"
android:layout_width="wrap_content"
android:layout_height="@dimen/default_element_height"
android:text="@string/name_label"
/>
<EditText
style="@style/FormText.Editable"
android:id="@+id/cardholderName"
android:layout_width="wrap_content"
android:layout_height="@dimen/default_element_height"
android:layout_weight="1"
android:gravity="right|center_vertical"
android:hint="@string/card_name_hint"
android:imeOptions="actionNext"
android:singleLine="true"
/>
</LinearLayout>
Also you can create a custom view base on the layout above. Have you looked at Creating custom view ?
There are two basic kinds of recursions: head recursion and tail recursion.
In head recursion, a function makes its recursive call and then performs some more calculations, maybe using the result of the recursive call, for example.
In a tail recursive function, all calculations happen first and the recursive call is the last thing that happens.
Taken from this super awesome post. Please consider reading it.
unicode
is meant to handle text. Text is a sequence of code points which may be bigger than a single byte. Text can be encoded in a specific encoding to represent the text as raw bytes(e.g. utf-8
, latin-1
...).
Note that unicode
is not encoded! The internal representation used by python is an implementation detail, and you shouldn't care about it as long as it is able to represent the code points you want.
On the contrary str
in Python 2 is a plain sequence of bytes. It does not represent text!
You can think of unicode
as a general representation of some text, which can be encoded in many different ways into a sequence of binary data represented via str
.
Note: In Python 3, unicode
was renamed to str
and there is a new bytes
type for a plain sequence of bytes.
Some differences that you can see:
>>> len(u'à') # a single code point
1
>>> len('à') # by default utf-8 -> takes two bytes
2
>>> len(u'à'.encode('utf-8'))
2
>>> len(u'à'.encode('latin1')) # in latin1 it takes one byte
1
>>> print u'à'.encode('utf-8') # terminal encoding is utf-8
à
>>> print u'à'.encode('latin1') # it cannot understand the latin1 byte
?
Note that using str
you have a lower-level control on the single bytes of a specific encoding representation, while using unicode
you can only control at the code-point level. For example you can do:
>>> 'àèìòù'
'\xc3\xa0\xc3\xa8\xc3\xac\xc3\xb2\xc3\xb9'
>>> print 'àèìòù'.replace('\xa8', '')
à?ìòù
What before was valid UTF-8, isn't anymore. Using a unicode string you cannot operate in such a way that the resulting string isn't valid unicode text. You can remove a code point, replace a code point with a different code point etc. but you cannot mess with the internal representation.
For curves with not too much noise, I recommend the following small code snippet:
from numpy import *
# example data with some peaks:
x = linspace(0,4,1e3)
data = .2*sin(10*x)+ exp(-abs(2-x)**2)
# that's the line, you need:
a = diff(sign(diff(data))).nonzero()[0] + 1 # local min+max
b = (diff(sign(diff(data))) > 0).nonzero()[0] + 1 # local min
c = (diff(sign(diff(data))) < 0).nonzero()[0] + 1 # local max
# graphical output...
from pylab import *
plot(x,data)
plot(x[b], data[b], "o", label="min")
plot(x[c], data[c], "o", label="max")
legend()
show()
The +1
is important, because diff
reduces the original index number.
You should NOT quote your Environment.NewLine man. Try "Your Text" & Environment.NewLine
.
The correct answer IMO is git clone --mirror. This will fully backup your repo.
Git clone mirror will clone the entire repository, notes, heads, refs, etc. and is typically used to copy an entire repository to a new git server. This will pull down an all branches and everything, the entire repository.
git clone --mirror [email protected]/your-repo.git
Normally cloning a repo does not include all branches, only Master.
Copying the repo folder will only "copy" the branches that have been pulled in...so by default that is Master branch only or other branches you have checked-out previously.
The Git bundle command is also not what you want: "The bundle command will package up everything that would normally be pushed over the wire with a git push command into a binary file that you can email to someone or put on a flash drive, then unbundle into another repository." (From What's the difference between git clone --mirror and git clone --bare)
Use versions:set
from the versions-maven plugin:
mvn versions:set -DnewVersion=2.50.1-SNAPSHOT
It will adjust all pom versions, parent versions and dependency versions in a multi-module project.
If you made a mistake, do
mvn versions:revert
afterwards, or
mvn versions:commit
if you're happy with the results.
Note: this solution assumes that all modules use the aggregate pom as parent pom also, a scenario that was considered standard at the time of this answer. If that is not the case, go for Garret Wilson's answer.
Any answer that uses window.Focus()
is wrong.
window.Focus()
will grab the focus away from whatever the user is typing at the time. This is insanely frustrating for end users, especially if the popups occur quite frequently.Any answer that uses window.Activate()
is wrong.
window.ShowActivated = false
is wrong.
Visibility.Visible
to hide/show the window is wrong.
window.Show()
and window.Hide()
.Essentially:
This code is 100% compatible with Citrix (no blank areas of the screen). It is tested with both normal WPF and DevExpress.
This answer is intended for any use case where we want a small notification window that is always in front of other windows (if the user selects this in the preferences).
If this answer seems more complex than the others, it's because it is robust, enterprise level code. Some of the other answers on this page are simple, but do not actually work.
Add this attached property to any UserControl
within the window. The attached property will:
Loaded
event is fired (otherwise it cannot look up the visual tree to find the parent window).At any point, you can set the window to be in front or not, by flipping the value of the attached property.
<UserControl x:Class="..."
...
attachedProperties:EnsureWindowInForeground.EnsureWindowInForeground=
"{Binding EnsureWindowInForeground, Mode=OneWay}">
public static class HideAndShowWindowHelper
{
/// <summary>
/// Intent: Ensure that small notification window is on top of other windows.
/// </summary>
/// <param name="window"></param>
public static void ShiftWindowIntoForeground(Window window)
{
try
{
// Prevent the window from grabbing focus away from other windows the first time is created.
window.ShowActivated = false;
// Do not use .Show() and .Hide() - not compatible with Citrix!
if (window.Visibility != Visibility.Visible)
{
window.Visibility = Visibility.Visible;
}
// We can't allow the window to be maximized, as there is no de-maximize button!
if (window.WindowState == WindowState.Maximized)
{
window.WindowState = WindowState.Normal;
}
window.Topmost = true;
}
catch (Exception)
{
// Gulp. Avoids "Cannot set visibility while window is closing".
}
}
/// <summary>
/// Intent: Ensure that small notification window can be hidden by other windows.
/// </summary>
/// <param name="window"></param>
public static void ShiftWindowIntoBackground(Window window)
{
try
{
// Prevent the window from grabbing focus away from other windows the first time is created.
window.ShowActivated = false;
// Do not use .Show() and .Hide() - not compatible with Citrix!
if (window.Visibility != Visibility.Collapsed)
{
window.Visibility = Visibility.Collapsed;
}
// We can't allow the window to be maximized, as there is no de-maximize button!
if (window.WindowState == WindowState.Maximized)
{
window.WindowState = WindowState.Normal;
}
window.Topmost = false;
}
catch (Exception)
{
// Gulp. Avoids "Cannot set visibility while window is closing".
}
}
}
In order to use this, you need to create the window in your ViewModel:
private ToastView _toastViewWindow;
private void ShowWindow()
{
if (_toastViewWindow == null)
{
_toastViewWindow = new ToastView();
_dialogService.Show<ToastView>(this, this, _toastViewWindow, true);
}
ShiftWindowOntoScreenHelper.ShiftWindowOntoScreen(_toastViewWindow);
HideAndShowWindowHelper.ShiftWindowIntoForeground(_toastViewWindow);
}
private void HideWindow()
{
if (_toastViewWindow != null)
{
HideAndShowWindowHelper.ShiftWindowIntoBackground(_toastViewWindow);
}
}
For tips on how ensure that a notification window always shifts back onto the visible screen, see my answer: In WPF, how to shift a window onto the screen if it is off the screen?.
You can add the model error on any property of your model, I suggest if there is nothing related to create a new property.
As an exemple we check if the email is already in use in DB and add the error to the Email property in the action so when I return the view, they know that there's an error and how to show it up by using
<%: Html.ValidationSummary(true)%>
<%: Html.ValidationMessageFor(model => model.Email) %>
and
ModelState.AddModelError("Email", Resources.EmailInUse);
I had the same problem, so I wrote this. It works rather well. Looks great if you mix it with some CSS transitions.
function toggle_visibility(id) {
var e = document.getElementById("mjwelcome");
if(e.style.height == '')
e.style.height = '0px';
else
e.style.height = '';
}
From what I learned after several days of research, Here is the Guide for ASP .Net Core MVC 2.x Custom User Authentication
In Startup.cs
:
Add below lines to ConfigureServices
method :
public void ConfigureServices(IServiceCollection services)
{
services.AddAuthentication(
CookieAuthenticationDefaults.AuthenticationScheme
).AddCookie(CookieAuthenticationDefaults.AuthenticationScheme,
options =>
{
options.LoginPath = "/Account/Login";
options.LogoutPath = "/Account/Logout";
});
services.AddMvc();
// authentication
services.AddAuthentication(options =>
{
options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme;
});
services.AddTransient(
m => new UserManager(
Configuration
.GetValue<string>(
DEFAULT_CONNECTIONSTRING //this is a string constant
)
)
);
services.AddDistributedMemoryCache();
}
keep in mind that in above code we said that if any unauthenticated user requests an action which is annotated with [Authorize]
, they well force redirect to /Account/Login
url.
Add below lines to Configure
method :
public void Configure(IApplicationBuilder app, IHostingEnvironment env)
{
if (env.IsDevelopment())
{
app.UseDeveloperExceptionPage();
app.UseBrowserLink();
app.UseDatabaseErrorPage();
}
else
{
app.UseExceptionHandler(ERROR_URL);
}
app.UseStaticFiles();
app.UseAuthentication();
app.UseMvc(routes =>
{
routes.MapRoute(
name: "default",
template: DEFAULT_ROUTING);
});
}
Create your UserManager
class that will also manage login and logout. it should look like below snippet (note that i'm using dapper):
public class UserManager
{
string _connectionString;
public UserManager(string connectionString)
{
_connectionString = connectionString;
}
public async void SignIn(HttpContext httpContext, UserDbModel user, bool isPersistent = false)
{
using (var con = new SqlConnection(_connectionString))
{
var queryString = "sp_user_login";
var dbUserData = con.Query<UserDbModel>(
queryString,
new
{
UserEmail = user.UserEmail,
UserPassword = user.UserPassword,
UserCellphone = user.UserCellphone
},
commandType: CommandType.StoredProcedure
).FirstOrDefault();
ClaimsIdentity identity = new ClaimsIdentity(this.GetUserClaims(dbUserData), CookieAuthenticationDefaults.AuthenticationScheme);
ClaimsPrincipal principal = new ClaimsPrincipal(identity);
await httpContext.SignInAsync(CookieAuthenticationDefaults.AuthenticationScheme, principal);
}
}
public async void SignOut(HttpContext httpContext)
{
await httpContext.SignOutAsync();
}
private IEnumerable<Claim> GetUserClaims(UserDbModel user)
{
List<Claim> claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.NameIdentifier, user.Id().ToString()));
claims.Add(new Claim(ClaimTypes.Name, user.UserFirstName));
claims.Add(new Claim(ClaimTypes.Email, user.UserEmail));
claims.AddRange(this.GetUserRoleClaims(user));
return claims;
}
private IEnumerable<Claim> GetUserRoleClaims(UserDbModel user)
{
List<Claim> claims = new List<Claim>();
claims.Add(new Claim(ClaimTypes.NameIdentifier, user.Id().ToString()));
claims.Add(new Claim(ClaimTypes.Role, user.UserPermissionType.ToString()));
return claims;
}
}
Then maybe you have an AccountController
which has a Login
Action that should look like below :
public class AccountController : Controller
{
UserManager _userManager;
public AccountController(UserManager userManager)
{
_userManager = userManager;
}
[HttpPost]
public IActionResult LogIn(LogInViewModel form)
{
if (!ModelState.IsValid)
return View(form);
try
{
//authenticate
var user = new UserDbModel()
{
UserEmail = form.Email,
UserCellphone = form.Cellphone,
UserPassword = form.Password
};
_userManager.SignIn(this.HttpContext, user);
return RedirectToAction("Search", "Home", null);
}
catch (Exception ex)
{
ModelState.AddModelError("summary", ex.Message);
return View(form);
}
}
}
Now you are able to use [Authorize]
annotation on any Action
or Controller
.
Feel free to comment any questions or bug's.
For Indian Mobile Numbers
Regular Expression to validate 11 or 12 (starting with 0 or 91) digit number
String regx = "(0/91)?[7-9][0-9]{9}";
String mobileNumber = "09756432848";
check
if(mobileNumber.matches(regx)){
"VALID MOBILE NUMBER"
}else{
"INVALID MOBILE NUMBER"
}
You can check for 10 digit mobile number by removing "(0/91)?"
from the regular expression i.e. regx
String url_open ="http://javadl.sun.com/webapps/download/AutoDL?BundleId=76860";
java.awt.Desktop.getDesktop().browse(java.net.URI.create(url_open));
As for me, it's a bad and quick solution for your problem :
android {
lintOptions {
abortOnError false
}
}
Better solution is solving problem in your code, because lint tool checks your Android project source files for potential bugs and optimization improvements for correctness, security, performance, usability, accessibility, and internationalization.
This problem most frequently occurring when:
Find your bugs by Inspect Code
in Android Studio: Improve Your Code with Lint
Right click on the folder where you put your main class then click on Build Path
--> Use as Source Folder
.
Finally run your main file as java application. Hope this problem will be solved.
It's simple with open source 7zip SFX-Packager - easy way to just "Drag & drop" folders onto it, and it creates a portable/self-extracting package.
The .selectedIndex
of the select
object has an index; you can use that to index into the .options
array.
Your call to DropDownListFor
needs a few more parameters to flesh it out. You need a SelectList as in the following SO question:
MVC3 DropDownListFor - a simple example?
With what you have there, you've only told it where to store the data, not where to load the list from.
In addition to @ericgol's answer: In the French version of Visual Studio Community 2017, type "Concepteur de classes" in the search bar.
Sorry, afaik, you cannot do that. To update attributes in two different tables, you will need to execute two separate statements. But they can be in a batch ( a set of SQL sent to the server in one round trip)
String[] mString = new String[] {"B", "D", "F"};
for (int j = 0; j < mString.length-1; j++) {
List_Of_Array.remove(mString[j]);
}
in this site console.developers.google.com
this console board select your project input the oath url. the oauth callback url will redirect when the oauth success
I find the check-and-invoke code which needs to be littered within all methods related to forms to be way too verbose and unneeded. Here's a simple extension method which lets you do away with it completely:
public static class Extensions
{
public static void Invoke<TControlType>(this TControlType control, Action<TControlType> del)
where TControlType : Control
{
if (control.InvokeRequired)
control.Invoke(new Action(() => del(control)));
else
del(control);
}
}
And then you can simply do this:
textbox1.Invoke(t => t.Text = "A");
No more messing around - simple.
MAC: Navigate to :/Library/Java/JavaVirtualMachines Make sure you are having only jdk1.8.0_201.jdk If you have many then remove other JDK
You can also override the deployment repository on the command line:
-Darguments=-DaltDeploymentRepository=myreposid::default::http://my/url/releases
Simply declare your variable to final
I tried the procedures of your posts but with no success.
This is what I get from debugger:
Original string that I save into sqlite database was b\r\na
.. when I read them, I get b\\r\\na
(length in debugger is 6: "b" "\" "\r" "\" "\n" "a"
) then I try replace this string and I get string with length 6 again (you can see in picture above).
I run this short script in my test form with only one text box:
private void Form_Load(object sender, EventArgs e)
{
string x = "b\\r\\na";
string y = x.Replace(@"\\", @"\");
this.textBox.Text = y + "\r\n\r\nLength: " + y.Length.ToString();
}
and I get this in text box (so, no new line characters between "b" and "a":
b\r\na
Length: 6
What can I do with this string to unescape backslash? (I expect new line between "b" and "a".)
Solution:
OK, this is not possible to do with standard replace, because of \r
and \n
is one character. Is possible to replace part of string character by character but not possible to replace "half part" of one character. So, I must replace any special character separatelly, like this:
private void Form_Load(object sender, EventArgs e) {
...
string z = x.Replace(@"\r\n", Environment.NewLine);
...
This produce correct result for me:
b
a
I've used Emacs for 20 years. It's great and it works everywhere. I also have TextMate, which I use for some things on the Mac (HTML mode is great). If you want to do Ruby development, Netbeans supports Ruby and it also runs on all platforms.
http://www.netbeans.org/features/ruby/index.html
I've seen some blogs, etc claiming that it's the best Ruby environment available.
Was able to get everything in my private registry back by searching just for 'library':
docker search [my.registry.host]:[port]/library
Returns (e.g.):
NAME DESCRIPTION STARS OFFICIAL AUTOMATED
library/custom-image 0
library/another-image 0
library/hello-world 0
The easiest way to check is
"key" in object
for example:
var obj = {
a: 1,
b: 2,
}
"a" in obj // true
"c" in obj // false
Return value as true implies that key exists in the object.
A CodeIgniter helper is a PHP file with multiple functions. It is not a class
Create a file and put the following code into it.
<?php if ( ! defined('BASEPATH')) exit('No direct script access allowed');
if ( ! function_exists('test_method'))
{
function test_method($var = '')
{
return $var;
}
}
Save this to application/helpers/ . We shall call it "new_helper.php"
The first line exists to make sure the file cannot be included and ran from outside the CodeIgniter scope. Everything after this is self explanatory.
This can be in your controller, model or view (not preferable)
$this->load->helper('new_helper');
echo test_method('Hello World');
If you use this helper in a lot of locations you can have it load automatically by adding it to the autoload configuration file i.e. <your-web-app>\application\config\autoload.php
.
$autoload['helper'] = array('new_helper');
-Mathew
If it is just viewing in tree view,One workaround is to use the Explorer in Notepad++ or any other tools.
Yes, it does deserialize to List<>. No need to keep it in an array and wrap/encapsulate it in a list.
public class UserHolder
{
private List<User> users = null;
public UserHolder()
{
}
[XmlElement("user")]
public List<User> Users
{
get { return users; }
set { users = value; }
}
}
Deserializing code,
XmlSerializer xs = new XmlSerializer(typeof(UserHolder));
UserHolder uh = (UserHolder)xs.Deserialize(new StringReader(str));
here are few differences between Comparator and Comparable I found on web :
If you see then logical difference between these two is Comparator in Java compare two objects provided to him, while Comparable interface compares "this" reference with the object specified.
Comparable in Java is used to implement natural ordering of object. In Java API String, Date and wrapper classes implement Comparable interface.
If any class implement Comparable interface in Java then collection of that object either List or Array can be sorted automatically by using Collections.sort() or Array.sort() method and object will be sorted based on there natural order defined by CompareTo method.
Objects which implement Comparable in Java can be used as keys in a sorted map or elements in a sorted set for example TreeSet, without specifying any Comparator.
site:How to use Comparator and Comparable in Java? With example
Read more: How to use Comparator and Comparable in Java? With example
IE is even worse with 2 connection per domain limit. But I wouldn't rely on fixing client browsers. Even if you have control over them, browsers like chrome will auto update and a future release might behave differently than you expect. I'd focus on solving the problem within your system design.
Your choices are to:
Load the images in sequence so that only 1 or 2 XHR calls are active at a time (use the success event from the previous image to check if there are more images to download and start the next request).
Use sub-domains like serverA.myphotoserver.com and serverB.myphotoserver.com. Each sub domain will have its own pool for connection limits. This means you could have 2 requests going to 5 different sub-domains if you wanted to. The downfall is that the photos will be cached according to these sub-domains. BTW, these don't need to be "mirror" domains, you can just make additional DNS pointers to the exact same website/server. This means you don't have the headache of administrating many servers, just one server with many DNS records.