SOLVED: That's it!!!! For me was compiling with JDK6 but running Tomcat with JDK7, WST uses the system properties and not the eclipse settings. I also configure the same JDK Version in eclipse and in System (check it with java -version in cmd line)
Details: I try to configure eclipse like describe here, but it didn´t solve the problem, then I notice in eclipse´s error log that tomcat was started with jre 1.7. in spite of my configurations.
I also try, in cmd line, 'java -version' and obtained '1.7' instead of expected '1.6'.
I also decide to configure java 1.6 (like in eclipse) in system panel but it didn´t solve the problem. I also desinstall jre 1.7 restart eclipse AND IT SUCCESS!.. It was a very usefull clue, thank you.
Macros should generally be avoided; prefer inline functions to them at all times. Any compiler worth its salt should be capable of inlining a small function as if it were a macro, and an inline function will respect namespaces and other scopes, as well as evaluating all the arguments once.
If it must be a macro, a while loop (already suggested) will work, or you can try the comma operator:
#define MACRO(X,Y) \
( \
(cout << "1st arg is:" << (X) << endl), \
(cout << "2nd arg is:" << (Y) << endl), \
(cout << "3rd arg is:" << ((X) + (Y)) << endl), \
(void)0 \
)
The (void)0
causes the statement to evaluate to one of void
type, and the use of commas rather than semicolons allows it to be used inside a statement, rather than only as a standalone. I would still recommend an inline function for a host of reasons, the least of which being scope and the fact that MACRO(a++, b++)
will increment a
and b
twice.
It is possible using Combine
without using NSObject
or Objective-C
Availability: iOS 13.0+
, macOS 10.15+
, tvOS 13.0+
, watchOS 6.0+
, Mac Catalyst 13.0+
, Xcode 11.0+
Note: Needs to be used only with classes not with value types.
Swift Version: 5.1.2
import Combine //Combine Framework
//Needs to be a class doesn't work with struct and other value types
class Car {
@Published var price : Int = 10
}
let car = Car()
//Option 1: Automatically Subscribes to the publisher
let cancellable1 = car.$price.sink {
print("Option 1: value changed to \($0)")
}
//Option 2: Manually Subscribe to the publisher
//Using this option multiple subscribers can subscribe to the same publisher
let publisher = car.$price
let subscriber2 : Subscribers.Sink<Int, Never>
subscriber2 = Subscribers.Sink(receiveCompletion: { print("completion \($0)")}) {
print("Option 2: value changed to \($0)")
}
publisher.subscribe(subscriber2)
//Assign a new value
car.price = 20
Option 1: value changed to 10
Option 2: value changed to 10
Option 1: value changed to 20
Option 2: value changed to 20
I might be late to the party but here is my simple solution and it works like a charm with every application I have:
try
{
//run the program again and close this one
Process.Start(Application.StartupPath + "\\blabla.exe");
//or you can use Application.ExecutablePath
//close this one
Process.GetCurrentProcess().Kill();
}
catch
{ }
here's my 2 cents worth:
forpromise()
function forpromise(lo, hi, st, res, fn) {_x000D_
if (typeof res === 'function') {_x000D_
fn = res;_x000D_
res = undefined;_x000D_
}_x000D_
if (typeof hi === 'function') {_x000D_
fn = hi;_x000D_
hi = lo;_x000D_
lo = 0;_x000D_
st = 1;_x000D_
}_x000D_
if (typeof st === 'function') {_x000D_
fn = st;_x000D_
st = 1;_x000D_
}_x000D_
return new Promise(function(resolve, reject) {_x000D_
_x000D_
(function loop(i) {_x000D_
if (i >= hi) return resolve(res);_x000D_
const promise = new Promise(function(nxt, brk) {_x000D_
try {_x000D_
fn(i, nxt, brk);_x000D_
} catch (ouch) {_x000D_
return reject(ouch);_x000D_
}_x000D_
});_x000D_
promise._x000D_
catch (function(brkres) {_x000D_
hi = lo - st;_x000D_
resolve(brkres)_x000D_
}).then(function(el) {_x000D_
if (res) res.push(el);_x000D_
loop(i + st)_x000D_
});_x000D_
})(lo);_x000D_
_x000D_
});_x000D_
}_x000D_
_x000D_
_x000D_
//no result returned, just loop from 0 thru 9_x000D_
forpromise(0, 10, function(i, next) {_x000D_
console.log("iterating:", i);_x000D_
next();_x000D_
}).then(function() {_x000D_
_x000D_
_x000D_
console.log("test result 1", arguments);_x000D_
_x000D_
//shortform:no result returned, just loop from 0 thru 4_x000D_
forpromise(5, function(i, next) {_x000D_
console.log("counting:", i);_x000D_
next();_x000D_
}).then(function() {_x000D_
_x000D_
console.log("test result 2", arguments);_x000D_
_x000D_
_x000D_
_x000D_
//collect result array, even numbers only_x000D_
forpromise(0, 10, 2, [], function(i, collect) {_x000D_
console.log("adding item:", i);_x000D_
collect("result-" + i);_x000D_
}).then(function() {_x000D_
_x000D_
console.log("test result 3", arguments);_x000D_
_x000D_
//collect results, even numbers, break loop early with different result_x000D_
forpromise(0, 10, 2, [], function(i, collect, break_) {_x000D_
console.log("adding item:", i);_x000D_
if (i === 8) return break_("ending early");_x000D_
collect("result-" + i);_x000D_
}).then(function() {_x000D_
_x000D_
console.log("test result 4", arguments);_x000D_
_x000D_
// collect results, but break loop on exception thrown, which we catch_x000D_
forpromise(0, 10, 2, [], function(i, collect, break_) {_x000D_
console.log("adding item:", i);_x000D_
if (i === 4) throw new Error("failure inside loop");_x000D_
collect("result-" + i);_x000D_
}).then(function() {_x000D_
_x000D_
console.log("test result 5", arguments);_x000D_
_x000D_
})._x000D_
catch (function(err) {_x000D_
_x000D_
console.log("caught in test 5:[Error ", err.message, "]");_x000D_
_x000D_
});_x000D_
_x000D_
});_x000D_
_x000D_
});_x000D_
_x000D_
_x000D_
});_x000D_
_x000D_
_x000D_
_x000D_
});
_x000D_
Since Spring 2.5 there's a very easy (and elegant) way to achieve that.
You can just change the params proxyMode
and value
of the @Scope
annotation.
With this trick you can avoid to write extra code or to inject the ApplicationContext every time that you need a prototype inside a singleton bean.
Example:
@Service
@Scope(value="prototype", proxyMode=ScopedProxyMode.TARGET_CLASS)
public class LoginAction {}
With the config above LoginAction
(inside HomeController
) is always a prototype even though the controller is a singleton.
I'm most definitely hitting this issue with attribute routing. The issue was fixed as of 5.0.0-rtm-130905. But still, you can try out the nightly builds which will most certainly have the fix.
To add nightlies to your NuGet package source, go to Tools -> Library Package Manager -> Package Manager Settings
and add the following URL under Package Sources
: http://myget.org/F/aspnetwebstacknightly
Just a single line to be added...
Add android:windowSoftInputMode="stateHidden|adjustPan"
in required activity of your manifest file
.
I just got solved :) :)
this fails:
DECLARE @vPortalUID NVARCHAR(32)
SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
DECLARE @nPortalUID AS UNIQUEIDENTIFIER
SET @nPortalUID = CAST(@vPortalUID AS uniqueidentifier)
PRINT @nPortalUID
this works
DECLARE @vPortalUID NVARCHAR(36)
SET @vPortalUID='2A66057D-F4E5-4E2B-B2F1-38C51A96D385'
DECLARE @nPortalUID AS UNIQUEIDENTIFIER
SET @nPortalUID = CAST(@vPortalUID AS UNIQUEIDENTIFIER)
PRINT @nPortalUID
the difference is NVARCHAR(36)
, your input parameter is too small!
Also try thistr:hover td {color: aqua;}
`
The element that triggered the event can be different than the one you bound the handler to because events bubble up the DOM tree.
So if you want to get the ID of the element the event handler is bound to, you can do this easily with this.id
(this
refers to the element).
But if you want to get the element where the event originated, then you have to access it with event.target
in W3C compatible browsers and event.srcElement
in IE 8 and below.
I would avoid writing a lot of JavaScript in the onXXXX
HTML attributes. I would only pass the event
object and put the code to extract the element in the handler (or in an extra function):
<div onlick="doWithThisElement(event)">
Then the handler would look like this:
function doWithThisElement(event) {
event = event || window.event; // IE
var target = event.target || event.srcElement; // IE
var id = target.id;
//...
}
I suggest to read the excellent articles about event handling at quirksmode.org.
Btw
<link onclick="doWithThisElement(id_of_this_element)" />
does hardly make sense (<link>
is an element that can only appear in the <head>
, binding an event handler (if even possible) will have no effect).
What would you think of this for 3D ArrayList - can be used similarly to arrays - see the comments in the code:
import java.util.ArrayList;
import java.util.List;
/**
* ArrayList3D simulates a 3 dimensional array,<br>
* e.g: myValue = arrayList3D.get(x, y, z) is the same as: <br>
* myValue = array[x][y][z] <br>
* and<br>
* arrayList3D.set(x, y, z, myValue) is the same as:<br>
* array[x][y][z] = myValue; <br>
* but keeps its full ArrayList functionality, thus its
* benefits of ArrayLists over arrays.<br>
* <br>
* @param <T> data type
*/
public class ArrayList3D <T> {
private final List<List<List<T>>> arrayList3D;
public ArrayList3D() {
arrayList3D = newArrayDim1();
}
/**
* Get value of the given array element.<br>
* E.g: get(2, 5, 3);<br>
* For 3 dim array this would equal to:<br>
* nyValue = array[2][5][3];<br>
* <br>
* Throws: IndexOutOfBoundsException
* - if any index is out of range
* (index < 0 || index >= size())<br>
* <br>
* @param dim1 index of the first dimension of the array list
* @param dim2 index of the second dimension of the array list
* @param dim3 index of the third dimension of the array list
* @return value of the given array element (of type T)
*/
public T get(int dim1, int dim2, int dim3) {
List<List<T>> ar2 = arrayList3D.get(dim1);
List<T> ar3 = ar2.get(dim2);
return ar3.get(dim3);
}
/**
* Set value of the given array.<br>
* E.g: set(2, 5, 3, "my value");<br>
* For 3 dim array this would equal to:<br>
* array[2][5][3]="my value";<br>
* <br>
* Throws: IndexOutOfBoundsException
* - if any index is out of range
* (index < 0 || index >= size())<br>
* <br>
* @param dim1 index of the first dimension of the array list
* @param dim2 index of the second dimension of the array list
* @param dim3 index of the third dimension of the array list
* @param value value to assign to the given array
* <br>
*/
public void set(int dim1, int dim2, int dim3, T value) {
arrayList3D.get(dim1).get(dim2).set(dim3, value);
}
/**
* Set value of the given array element.<br>
* E.g: set(2, 5, 3, "my value");<br>
* For 3 dim array this would equal to:<br>
* array[2][5][3]="my value";<br>
* <br>
* Throws: IndexOutOfBoundsException
* - if any index is less then 0
* (index < 0)<br>
* <br>
* @param indexDim1 index of the first dimension of the array list
* @param indexDim2 index of the second dimension of the array list
* If you set indexDim1 or indexDim2 to value higher
* then the current max index,
* the method will add entries for the
* difference. The added lists will be empty.
* @param indexDim3 index of the third dimension of the array list
* If you set indexDim3 to value higher
* then the current max index,
* the method will add entries for the
* difference and fill in the values
* of param. 'value'.
* @param value value to assign to the given array index
*/
public void setOrAddValue(int indexDim1,
int indexDim2,
int indexDim3,
T value) {
List<T> ar3 = setOrAddDim3(indexDim1, indexDim2);
int max = ar3.size();
if (indexDim3 < 0)
indexDim3 = 0;
if (indexDim3 < max)
ar3.set(indexDim3, value);
for (int ix = max-1; ix < indexDim3; ix++ ) {
ar3.add(value);
}
}
private List<List<List<T>>> newArrayDim1() {
List<T> ar3 = new ArrayList<>();
List<List<T>> ar2 = new ArrayList<>();
List<List<List<T>>> ar1 = new ArrayList<>();
ar2.add(ar3);
ar1.add(ar2);
return ar1;
}
private List<List<T>> newArrayDim2() {
List<T> ar3 = new ArrayList<>();
List<List<T>> ar2 = new ArrayList<>();
ar2.add(ar3);
return ar2;
}
private List<T> newArrayDim3() {
List<T> ar3 = new ArrayList<>();
return ar3;
}
private List<List<T>> setOrAddDim2(int indexDim1) {
List<List<T>> ar2 = null;
int max = arrayList3D.size();
if (indexDim1 < 0)
indexDim1 = 0;
if (indexDim1 < max)
return arrayList3D.get(indexDim1);
for (int ix = max-1; ix < indexDim1; ix++ ) {
ar2 = newArrayDim2();
arrayList3D.add(ar2);
}
return ar2;
}
private List<T> setOrAddDim3(int indexDim1, int indexDim2) {
List<List<T>> ar2 = setOrAddDim2(indexDim1);
List<T> ar3 = null;
int max = ar2.size();
if (indexDim2 < 0)
indexDim2 = 0;
if (indexDim2 < max)
return ar2.get(indexDim2);
for (int ix = max-1; ix < indexDim2; ix++ ) {
ar3 = newArrayDim3();
ar2.add(ar3);
}
return ar3;
}
public List<List<List<T>>> getArrayList3D() {
return arrayList3D;
}
}
And here is a test code:
ArrayList3D<Integer> ar = new ArrayList3D<>();
int max = 3;
for (int i1 = 0; i1 < max; i1++) {
for (int i2 = 0; i2 < max; i2++) {
for (int i3 = 0; i3 < max; i3++) {
ar.setOrAddValue(i1, i2, i3, (i3 + 1) + (i2*max) + (i1*max*max));
int x = ar.get(i1, i2, i3);
System.out.println(" - " + i1 + ", " + i2 + ", " + i3 + " = " + x);
}
}
}
Result output:
Could this be a typo? (two Ps in ppasscode, intended?)
$_POST['ppasscode'];
I would make sure and do:
print_r($_POST);
and make sure the data is accurate there, and then echo out what it should look like:
echo hash('sha256', $_POST['ppasscode']);
Compare this output to what you have in the database (manually). By doing this you're exploring your possible points of failure:
I have a dialog that I wrote called an OpenFileOrFolder dialog that allows you to open either a folder or a file.
If you set its AcceptFiles value to false, then it operates in only accept folder mode.
In the Controller , one could use the below syntax
public ViewResult EditEmployee() {
return View();
}
public ActionResult EditEmployee() {
return View();
}
In the above example , only the return type varies . one returns ViewResult
whereas the other one returns ActionResult
.
ActionResult is an abstract class . It can accept:
ViewResult , PartialViewResult, EmptyResult , RedirectResult , RedirectToRouteResult , JsonResult , JavaScriptResult , ContentResult, FileContentResult , FileStreamResult , FilePathResult etc.
The ViewResult
is a subclass of ActionResult
.
if you are using extracted tomcat then,
startup.sh
and shutdown.sh
are two script located in TOMCAT/bin/ to start and shutdown tomcat, You could use that
if tomcat is installed then
/etc/init.d/tomcat5.5 start
/etc/init.d/tomcat5.5 stop
/etc/init.d/tomcat5.5 restart
Instead of doing all these.. cant you use a simpler approach as shown below.
Response.ClearContent();
Response.AddHeader("content-disposition", "attachment; filename=" + strFileName);
Response.ContentType = "application/excel";
System.IO.StringWriter sw = new System.IO.StringWriter();
HtmlTextWriter htw = new HtmlTextWriter(sw);
gv.RenderControl(htw);
Response.Write(sw.ToString());
Response.End();
You can get the entire walkthrough here
MySQL makes a difference between "localhost" and "127.0.0.1".
It might be possible that 'root'@'localhost' is not allowed because there is an entry in the user table that will only allow root login from 127.0.0.1.
This could also explain why some application on your server can connect to the database and some not because there are different ways of connecting to the database. And you currently do not allow it through "localhost".
Firstly uninstall Android Studio from control panel using program and features. Later you also need to enable displaying of hidden files and folders and delete the following:
users/${yourUserName}/appData/Local/Android
If You have jar file then create bat file with:
java -jar NameOfJar.jar
You didn't close the file after creating it, so when you write to it, it's in use by yourself. The Create method opens the file and returns a FileStream object. You either write to the file using the FileStream or close it before writing to it. I would suggest that you use the CreateText method instead in this case, as it returns a StreamWriter.
You also forgot to close the StreamWriter in the case where the file didn't exist, so it would most likely still be locked when you would try to write to it the next time. And you forgot to write the error message to the file if it didn't exist.
Dim strFile As String = "C:\ErrorLog_" & DateTime.Today.ToString("dd-MMM-yyyy") & ".txt"
Dim sw As StreamWriter
Try
If (Not File.Exists(strFile)) Then
sw = File.CreateText(strFile)
sw.WriteLine("Start Error Log for today")
Else
sw = File.AppendText(strFile)
End If
sw.WriteLine("Error Message in Occured at-- " & DateTime.Now)
sw.Close()
Catch ex As IOException
MsgBox("Error writing to log file.")
End Try
Note: When you catch exceptions, don't catch the base class Exception, catch only the ones that are releveant. In this case it would be the ones inheriting from IOException.
In IFrames I usually solve this problem by putting a small script to the very end of the block:
<body>
The content of your IFrame
<script type="text/javascript">
//<![CDATA[
fireOnReadyEvent();
parent.IFrameLoaded();
//]]>
</script>
</body>
This work most of the time for me. Sometimes the simplest and most naive solution is the most appropriate.
Another option (If you are using ASP.Net razor view) is, On your view you can do
<div>@String.Format("{0:C}", Model.total)</div>
This would format it correctly. note (item.total is double/decimal)
if in jQuery you can also use Regex
$(".totalSum").text('$' + parseFloat(total, 10).toFixed(2).replace(/(\d)(?=(\d{3})+\.)/g, "$1,").toString());
Assuming these were datetime columns (if they're not apply to_datetime
) you can just subtract them:
df['A'] = pd.to_datetime(df['A'])
df['B'] = pd.to_datetime(df['B'])
In [11]: df.dtypes # if already datetime64 you don't need to use to_datetime
Out[11]:
A datetime64[ns]
B datetime64[ns]
dtype: object
In [12]: df['A'] - df['B']
Out[12]:
one -58 days
two -26 days
dtype: timedelta64[ns]
In [13]: df['C'] = df['A'] - df['B']
In [14]: df
Out[14]:
A B C
one 2014-01-01 2014-02-28 -58 days
two 2014-02-03 2014-03-01 -26 days
Note: ensure you're using a new of pandas (e.g. 0.13.1), this may not work in older versions.
flup's answer is the best but it did not work for me completely. I had to do the following as well to get it working:
export JAVA_HOME=/usr/lib/jvm/java-7-oracle/jre/
chmod 777
on the folder./gradlew build
- Building HibernateAn abstract data type, sometimes abbreviated ADT, is a logical description of how we view the data and the operations that are allowed without regard to how they will be implemented. This means that we are concerned only with what the data is representing and not with how it will eventually be constructed.
This to me sounds like a reasonably common problem that junior to intermediate developers tend to face at some point: they either don't know or don't trust the contracts they are participating in and defensively overcheck for nulls. Additionally, when writing their own code, they tend to rely on returning nulls to indicate something thus requiring the caller to check for nulls.
To put this another way, there are two instances where null checking comes up:
Where null is a valid response in terms of the contract; and
Where it isn't a valid response.
(2) is easy. Either use assert
statements (assertions) or allow failure (for example, NullPointerException). Assertions are a highly-underused Java feature that was added in 1.4. The syntax is:
assert <condition>
or
assert <condition> : <object>
where <condition>
is a boolean expression and <object>
is an object whose toString()
method's output will be included in the error.
An assert
statement throws an Error
(AssertionError
) if the condition is not true. By default, Java ignores assertions. You can enable assertions by passing the option -ea
to the JVM. You can enable and disable assertions for individual classes and packages. This means that you can validate code with the assertions while developing and testing, and disable them in a production environment, although my testing has shown next to no performance impact from assertions.
Not using assertions in this case is OK because the code will just fail, which is what will happen if you use assertions. The only difference is that with assertions it might happen sooner, in a more-meaningful way and possibly with extra information, which may help you to figure out why it happened if you weren't expecting it.
(1) is a little harder. If you have no control over the code you're calling then you're stuck. If null is a valid response, you have to check for it.
If it's code that you do control, however (and this is often the case), then it's a different story. Avoid using nulls as a response. With methods that return collections, it's easy: return empty collections (or arrays) instead of nulls pretty much all the time.
With non-collections it might be harder. Consider this as an example: if you have these interfaces:
public interface Action {
void doSomething();
}
public interface Parser {
Action findAction(String userInput);
}
where Parser takes raw user input and finds something to do, perhaps if you're implementing a command line interface for something. Now you might make the contract that it returns null if there's no appropriate action. That leads the null checking you're talking about.
An alternative solution is to never return null and instead use the Null Object pattern:
public class MyParser implements Parser {
private static Action DO_NOTHING = new Action() {
public void doSomething() { /* do nothing */ }
};
public Action findAction(String userInput) {
// ...
if ( /* we can't find any actions */ ) {
return DO_NOTHING;
}
}
}
Compare:
Parser parser = ParserFactory.getParser();
if (parser == null) {
// now what?
// this would be an example of where null isn't (or shouldn't be) a valid response
}
Action action = parser.findAction(someInput);
if (action == null) {
// do nothing
} else {
action.doSomething();
}
to
ParserFactory.getParser().findAction(someInput).doSomething();
which is a much better design because it leads to more concise code.
That said, perhaps it is entirely appropriate for the findAction() method to throw an Exception with a meaningful error message -- especially in this case where you are relying on user input. It would be much better for the findAction method to throw an Exception than for the calling method to blow up with a simple NullPointerException with no explanation.
try {
ParserFactory.getParser().findAction(someInput).doSomething();
} catch(ActionNotFoundException anfe) {
userConsole.err(anfe.getMessage());
}
Or if you think the try/catch mechanism is too ugly, rather than Do Nothing your default action should provide feedback to the user.
public Action findAction(final String userInput) {
/* Code to return requested Action if found */
return new Action() {
public void doSomething() {
userConsole.err("Action not found: " + userInput);
}
}
}
In my opinion, the easiest way to do is adding padding to your tag.
td {
padding: 10px 0
}
Hope this will help you! Cheer!
A neato trick with groupby is to run length encoding in one line:
[(c,len(list(cgen))) for c,cgen in groupby(some_string)]
will give you a list of 2-tuples where the first element is the char and the 2nd is the number of repetitions.
Edit: Note that this is what separates itertools.groupby
from the SQL GROUP BY
semantics: itertools doesn't (and in general can't) sort the iterator in advance, so groups with the same "key" aren't merged.
If, like me, you actually wanted to load .properties files from your filesystem instead of the classpath, but otherwise keep all the smarts related to lookup, then do the following:
java.util.ResourceBundle.Control
newBundle()
methodIn this silly example, I assume you have a folder at C:\temp
which contains a flat list of ".properties" files:
public class MyControl extends Control {
@Override
public ResourceBundle newBundle(String baseName, Locale locale, String format, ClassLoader loader, boolean reload)
throws IllegalAccessException, InstantiationException, IOException {
if (!format.equals("java.properties")) {
return null;
}
String bundleName = toBundleName(baseName, locale);
ResourceBundle bundle = null;
// A simple loading approach which ditches the package
// NOTE! This will require all your resource bundles to be uniquely named!
int lastPeriod = bundleName.lastIndexOf('.');
if (lastPeriod != -1) {
bundleName = bundleName.substring(lastPeriod + 1);
}
InputStreamReader reader = null;
FileInputStream fis = null;
try {
File file = new File("C:\\temp\\mybundles", bundleName);
if (file.isFile()) { // Also checks for existance
fis = new FileInputStream(file);
reader = new InputStreamReader(fis, Charset.forName("UTF-8"));
bundle = new PropertyResourceBundle(reader);
}
} finally {
IOUtils.closeQuietly(reader);
IOUtils.closeQuietly(fis);
}
return bundle;
}
}
Note also that this supports UTF-8, which I believe isn't supported by default otherwise.
Using Git from the command line with Bash you can do the following:
git commit -m "this is
> a line
> with new lines
> maybe"
Simply type and press Enter when you want a new line, the ">" symbol means that you have pressed Enter, and there is a new line. Other answers work also.
Here is Bjarne Stroustrup's wordings,
In C++, the definition of NULL is 0, so there is only an aesthetic difference. I prefer to avoid macros, so I use 0. Another problem with NULL is that people sometimes mistakenly believe that it is different from 0 and/or not an integer. In pre-standard code, NULL was/is sometimes defined to something unsuitable and therefore had/has to be avoided. That's less common these days.
If you have to name the null pointer, call it nullptr; that's what it's called in C++11. Then, "nullptr" will be a keyword.
you declare your function as returning boolean, but it never returns anything.
That's not possible using the built-in Array.prototype.map
. However, you could use a simple for
-loop instead, if you do not intend to map
any values:
var hasValueLessThanTen = false;
for (var i = 0; i < myArray.length; i++) {
if (myArray[i] < 10) {
hasValueLessThanTen = true;
break;
}
}
Or, as suggested by @RobW
, use Array.prototype.some
to test if there exists at least one element that is less than 10. It will stop looping when some element that matches your function is found:
var hasValueLessThanTen = myArray.some(function (val) {
return val < 10;
});
We can use drush command also to check logs
drush watchdog-show
it will show recent 10 messages.
or if we want to continue showing logs with more information we can user
drush watchdog-show --tail --full.
In short "redirect://yahoo.com"
will lend you to yahoo.com
.
where as "redirect:yahoo.com"
will lend you your-context/yahoo.com
ie for ex- localhost:8080/yahoo.com
For a bandpass filter, ws is a tuple containing the lower and upper corner frequencies. These represent the digital frequency where the filter response is 3 dB less than the passband.
wp is a tuple containing the stop band digital frequencies. They represent the location where the maximum attenuation begins.
gpass is the maximum attenutation in the passband in dB while gstop is the attentuation in the stopbands.
Say, for example, you wanted to design a filter for a sampling rate of 8000 samples/sec having corner frequencies of 300 and 3100 Hz. The Nyquist frequency is the sample rate divided by two, or in this example, 4000 Hz. The equivalent digital frequency is 1.0. The two corner frequencies are then 300/4000 and 3100/4000.
Now lets say you wanted the stopbands to be down 30 dB +/- 100 Hz from the corner frequencies. Thus, your stopbands would start at 200 and 3200 Hz resulting in the digital frequencies of 200/4000 and 3200/4000.
To create your filter, you'd call buttord as
fs = 8000.0
fso2 = fs/2
N,wn = scipy.signal.buttord(ws=[300/fso2,3100/fso2], wp=[200/fs02,3200/fs02],
gpass=0.0, gstop=30.0)
The length of the resulting filter will be dependent upon the depth of the stop bands and the steepness of the response curve which is determined by the difference between the corner frequency and stopband frequency.
found one more way to do it using the boto:
from boto.s3.connection import S3Connection, Bucket, Key
conn = S3Connection(AWS_ACCESS_KEY, AWS_SECERET_KEY)
b = Bucket(conn, S3_BUCKET_NAME)
k = Key(b)
k.key = 'images/my-images/'+filename
b.delete_key(k)
Personally, I loathe the preprocessor, so I'd always go with const
.
The main advantage to a #define
is that it requires no memory to store in your program, as it is really just replacing some text with a literal value. It also has the advantage that it has no type, so it can be used for any integer value without generating warnings.
Advantages of "const
"s are that they can be scoped, and they can be used in situations where a pointer to an object needs to be passed.
I don't know exactly what you are getting at with the "static
" part though. If you are declaring globally, I'd put it in an anonymous namespace instead of using static
. For example
namespace {
unsigned const seconds_per_minute = 60;
};
int main (int argc; char *argv[]) {
...
}
Swift 3 / Swift 4 Update:
let screenSize: CGRect = UIScreen.main.bounds
let myView = UIView(frame: CGRect(x: 0, y: 0, width: screenSize.width - 10, height: 10))
self.view.addSubview(myView)
Microsoft has provided for you on their MSDN blogs: MVC 5 for VS2012. From that blog:
We have released ASP.NET and Web Tools 2013.1 for Visual Studio 2012. This release brings a ton of great improvements, and include some fantastic enhancements to ASP.NET MVC 5, Web API 2, Scaffolding and Entity Framework to users of Visual Studio 2012 and Visual Studio 2012 Express for Web.
You can download and start using these features now.
The download link is to a Web Platform Installer that will allow you to start a new MVC5 project from VS2012.
Another way to totally override the cart.php is to copy:
woocommerce/templates/cart/cart.php to
yourtheme/woocommerce/cart/cart.php
Then do whatever you need at the yourtheme/woocommerce/cart/cart.php
I faced problem some times so that in this case always avoid FragmentPagerAdapter and use FragmentStatePagerAdapter.
It work for me. I hope it will work for you also.
How do I check if a particular key exists in a JavaScript object or array? If a key doesn't exist and I try to access it, will it return false? Or throw an error?
Accessing directly a missing property using (associative) array style or object style will return an undefined constant.
As people have already mentioned here, you could have an object with a property associated with an "undefined" constant.
var bizzareObj = {valid_key: undefined};
In that case, you will have to use hasOwnProperty or in operator to know if the key is really there. But, but at what price?
so, I tell you...
in operator and hasOwnProperty are "methods" that use the Property Descriptor mechanism in Javascript (similar to Java reflection in the Java language).
http://www.ecma-international.org/ecma-262/5.1/#sec-8.10
The Property Descriptor type is used to explain the manipulation and reification of named property attributes. Values of the Property Descriptor type are records composed of named fields where each field’s name is an attribute name and its value is a corresponding attribute value as specified in 8.6.1. In addition, any field may be present or absent.
On the other hand, calling an object method or key will use Javascript [[Get]] mechanism. That is a far way faster!
http://jsperf.com/checking-if-a-key-exists-in-a-javascript-array
.
Using in operatorvar result = "Impression" in array;
The result was
12,931,832 ±0.21% ops/sec 92% slower
Using hasOwnProperty
var result = array.hasOwnProperty("Impression")
The result was
16,021,758 ±0.45% ops/sec 91% slower
Accessing elements directly (brackets style)
var result = array["Impression"] === undefined
The result was
168,270,439 ±0.13 ops/sec 0.02% slower
Accessing elements directly (object style)
var result = array.Impression === undefined;
The result was
168,303,172 ±0.20% fastest
undefined
value?That question puzzles me. In Javascript, there are at least two references for absent objects to avoid problems like this: null
and undefined
.
null
is the primitive value that represents the intentional absence of any object value, or in short terms, the confirmed lack of value. On the other hand, undefined
is an unknown value (not defined). If there is a property that will be used later with a proper value consider use null
reference instead of undefined
because in the initial moment the property is confirmed to lack value.
Compare:
var a = {1: null};
console.log(a[1] === undefined); // output: false. I know the value at position 1 of a[] is absent and this was by design, i.e.: the value is defined.
console.log(a[0] === undefined); // output: true. I cannot say anything about a[0] value. In this case, the key 0 was not in a[].
Avoid objects with undefined
values. Check directly whenever possible and use null
to initialize property values. Otherwise, use the slow in
operator or hasOwnProperty()
method.
As people have commented, modern versions of the Javascript engines (with firefox exception) have changed the approach for access properties. The current implementation is slower than the previous one for this particular case but the difference between access key and object is neglectable.
A basic implementation which you'll need to adapt would look something like this:
function insertParam(key, value) {
key = encodeURIComponent(key);
value = encodeURIComponent(value);
// kvp looks like ['key1=value1', 'key2=value2', ...]
var kvp = document.location.search.substr(1).split('&');
let i=0;
for(; i<kvp.length; i++){
if (kvp[i].startsWith(key + '=')) {
let pair = kvp[i].split('=');
pair[1] = value;
kvp[i] = pair.join('=');
break;
}
}
if(i >= kvp.length){
kvp[kvp.length] = [key,value].join('=');
}
// can return this or...
let params = kvp.join('&');
// reload page with new params
document.location.search = params;
}
This is approximately twice as fast as a regex or search based solution, but that depends completely on the length of the querystring and the index of any match
the slow regex method I benchmarked against for completions sake (approx +150% slower)
function insertParam2(key,value)
{
key = encodeURIComponent(key); value = encodeURIComponent(value);
var s = document.location.search;
var kvp = key+"="+value;
var r = new RegExp("(&|\\?)"+key+"=[^\&]*");
s = s.replace(r,"$1"+kvp);
if(!RegExp.$1) {s += (s.length>0 ? '&' : '?') + kvp;};
//again, do what you will here
document.location.search = s;
}
Change this.foo()
to module.exports.foo()
This simply means that either tree
, tree[otu]
, or tree[otu][0]
evaluates to None
, and as such is not subscriptable. Most likely tree[otu]
or tree[otu][0]
. Track it down with some simple debugging like this:
def Ancestors (otu,tree):
try:
tree[otu][0][0]
except TypeError:
print otu, tre[otu]
raise
#etc...
or pdb
Parsing dates is a pain in JavaScript as there's no extensive native support. However you could do something like the following by relying on the Date(year, month, day [, hour, minute, second, millisecond])
constructor signature of the Date
object.
var dateString = '17-09-2013 10:08',
dateTimeParts = dateString.split(' '),
timeParts = dateTimeParts[1].split(':'),
dateParts = dateTimeParts[0].split('-'),
date;
date = new Date(dateParts[2], parseInt(dateParts[1], 10) - 1, dateParts[0], timeParts[0], timeParts[1]);
console.log(date.getTime()); //1379426880000
console.log(date); //Tue Sep 17 2013 10:08:00 GMT-0400
You could also use a regular expression with capturing groups to parse the date string in one line.
var dateParts = '17-09-2013 10:08'.match(/(\d+)-(\d+)-(\d+) (\d+):(\d+)/);
console.log(dateParts); // ["17-09-2013 10:08", "17", "09", "2013", "10", "08"]
dt.Rows[1].ItemArray
gives you a copy of item arrays. When you modify it, you're not modifying the original.
You can simply do this:
dt.Rows[1][3] = "Value";
ItemArray property is used when you want to modify all row values.
ex.:
dt.Rows[1].ItemArray = newItemArray;
Answering this question in the content that the questioners intent was to use the solution for software licensing, the requirements are:
A Digital Signature will solve this issue as the raw data that makes the key can be signed with a private key which makes it not human readable but could be decoded if reverse engineered. But the private key is safe which means no one will be able to make licenses for your software (which is the point).
Remember you can not prevent a skilled person from removing the software locks on your product. So if they have to hack each version that is released. But you really don't want them to be able to generate new keys for your product that can be shared for all versions.
Python The PyNaCl documentation has an example of 'Digital Signature' which will suite the purpose. http://pynacl.readthedocs.org/en/latest/signing/
and of cause NaCl project to C examples
With Java 7 and later version, you can specify a byte literal in this way:
byte aByte = (byte)0b00100001;
Reference: http://docs.oracle.com/javase/8/docs/technotes/guides/language/binary-literals.html
You'll need some sort of uniquely identifying column in your table, like an auto-filling primary key or a datetime column (preferably the primary key). Then you can do this:
SELECT * FROM table_name ORDER BY unique_column DESC LIMIT 1
The ORDER BY column
tells it to rearange the results according to that column's data, and the DESC
tells it to reverse the results (thus putting the last one first). After that, the LIMIT 1
tells it to only pass back one row.
You can also use update ... from
syntax and use a mapping table. If you want to update more than one column, it's much more generalizable:
update test as t set
column_a = c.column_a
from (values
('123', 1),
('345', 2)
) as c(column_b, column_a)
where c.column_b = t.column_b;
You can add as many columns as you like:
update test as t set
column_a = c.column_a,
column_c = c.column_c
from (values
('123', 1, '---'),
('345', 2, '+++')
) as c(column_b, column_a, column_c)
where c.column_b = t.column_b;
This is what you're looking for.
I had this problem too. And like you, the answer is very hard to find. But there IS an easy way to get the ViewHolder from a specific position (something you'll probably do a lot in the Adapter).
myRecyclerView.findViewHolderForAdapterPosition(pos);
NOTE: If the View has been recycled, this will return null
. Thanks to Michael for quickly catching my important omission.
Use a testing framework
This might be helpful - http://seleniumhq.org/ - Selenium is a web application automated testing system.
You can create tests using the Firefox plugin Selenium IDE
Manual firing of events
To manually fire events the correct way you will need to use different methods for different browsers - either el.dispatchEvent
or el.fireEvent
where el
will be your Anchor element. I believe both of these will require constructing an Event object to pass in.
The alternative, not entirely correct, quick-and-dirty way would be this:
var el = document.getElementById('anchorelementid');
el.onclick(); // Not entirely correct because your event handler will be called
// without an Event object parameter.
One important point that is alluded to but not directly addressed is the difference between "precision" and "scale" and how they are used in the two statements. "precision" is the total number of significant digits in a number. "scale" is the number of digits to the right of the decimal point.
The MathContext constructor only accepts precision and RoundingMode as arguments, and therefore scale is never specified in the first statement.
setScale()
obviously accepts scale as an argument, as well as RoundingMode, however precision is never specified in the second statement.
If you move the decimal point one place to the right, the difference will become clear:
// 1.
new BigDecimal("35.3456").round(new MathContext(4, RoundingMode.HALF_UP));
//result = 35.35
// 2.
new BigDecimal("35.3456").setScale(4, RoundingMode.HALF_UP);
// result = 35.3456
We are running Linux, a mostly POSIX-compliant OS. POSIX standards it should be: Utility Argument Syntax.
-o
. -o argument
or
-oargument
. -lst
is equivalent to -t -l -s
.-lst
is equivalent to -tls
.-lst
nonoption.--
argument terminates options.-
option is typically used to represent one of the standard input
streams.The confusion stems from your thinking \b
matches spaces (probably because "b" suggests "blank").
\b
matches the empty string at the beginning or end of a word. \B
matches the empty string not at the beginning or end of a word. The key here is that "-" is not a part of a word. So <left>-<right>
matches \b-\b
because there are word boundaries on either side of the -
. On the other hand for <left> - <right>
(note the spaces), there are not word boundaries on either side of the dash. The word boundaries are one space further left and right.
On the other hand, when searching for \bcat\b
word boundaries behave more intuitively, and it matches " cat " as expected.
You have the wrong mental model for using NumPy efficiently. NumPy arrays are stored in contiguous blocks of memory. If you want to add rows or columns to an existing array, the entire array needs to be copied to a new block of memory, creating gaps for the new elements to be stored. This is very inefficient if done repeatedly to build an array.
In the case of adding rows, your best bet is to create an array that is as big as your data set will eventually be, and then assign data to it row-by-row:
>>> import numpy
>>> a = numpy.zeros(shape=(5,2))
>>> a
array([[ 0., 0.],
[ 0., 0.],
[ 0., 0.],
[ 0., 0.],
[ 0., 0.]])
>>> a[0] = [1,2]
>>> a[1] = [2,3]
>>> a
array([[ 1., 2.],
[ 2., 3.],
[ 0., 0.],
[ 0., 0.],
[ 0., 0.]])
The real question is why does it generate a 500 error. If it is related to any input parameters, then I would argue that it should be handled internally and returned as a 400 series error. Generally a 400, 404 or 406 would be appropriate to reflect bad input since the general convention is that a RESTful resource is uniquely identified by the URL and a URL that cannot generate a valid response is a bad request (400) or similar.
If the error is caused by anything other than the inputs explicitly or implicitly supplied by the request, then I would say a 500 error is likely appropriate. So a failed database connection or other unpredictable error is accurately represented by a 500 series error.
Ok, SO Basically I think I have a simple and effective solution.
package AnotherPopUpMessage;
import javax.swing.JOptionPane;
public class AnotherPopUp {
public static void main(String[] args) {
// TODO Auto-generated method stub
JOptionPane.showMessageDialog(null, "Again? Where do all these come from?",
"PopUp4", JOptionPane.CLOSED_OPTION);
}
}
I just copied an older release of elasticsearch into the /usr/local/Cellar/elasticsearch
directory.
$ mkdir /usr/local/Cellar/elasticsearch/5.4.3/bin
$ cp elasticsearch /usr/local/Cellar/elasticsearch/5.4.3/bin
$ brew switch elasticsearch 5.4.3
That's it. Maybe it's useful for anyone.
date +%s
This works fine for me on OS X Lion.
In iOS10 instead of your code, you should request an authorization for notification with the following: (Don't forget to add the UserNotifications
Framework)
if #available(iOS 10.0, *) {
UNUserNotificationCenter.current().requestAuthorization([.alert, .sound, .badge]) { (granted: Bool, error: NSError?) in
// Do something here
}
}
Also, the correct code for you is (use in the else
of the previous condition, for example):
let setting = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
UIApplication.shared().registerUserNotificationSettings(setting)
UIApplication.shared().registerForRemoteNotifications()
Finally, make sure Push Notification
is activated under target
-> Capabilities
-> Push notification
. (set it on On
)
I don't like to use setTimeout in or even have strange temporary inputs. So I came up with this.
Simply change your password field type to text
<input name="password" type="text" value="">
And when the user focus that input change it again to password
$('input[name=password]').on('focus', function (e) {
$(e.target).attr('type', 'password');
});
Its working using latest Chrome (Version 54.0.2840.71 (64-bit))
a way not seen in others
function str_split(str, sep)
if sep == nil then
sep = '%s'
end
local res = {}
local func = function(w)
table.insert(res, w)
end
string.gsub(str, '[^'..sep..']+', func)
return res
end
If the problem domain has some kind of string header concept, this could be modelled as an enum.
switch(GetStringHeader(s))
{
case StringHeader.ABC: ...
case StringHeader.QWERTY: ...
...
}
StringHeader GetStringHeader(string s)
{
if (s.StartsWith("ABC")) return StringHeader.ABC;
...
}
enum StringHeader { ABC, QWERTY, ... }
I would do it like this:
SELECT top(100)* into #tmpFerdeen
FROM Customers
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerEurope
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerAsia
Insert into #tmpFerdeen
SELECT top(100)*
FROM CustomerAmericas
exp(x) = e^x where e= 2.718281(approx)
import numpy as np
ar=np.array([1,2,3])
ar=np.exp(ar)
print ar
outputs:
[ 2.71828183 7.3890561 20.08553692]
For me work, first review
php -m
php -version
Later install the extension
apt-get update
apt-get install php7.2-zip
systemctl restart apache2
I think this is most suited:
Do the merging backward, for instance, if the committed code contains the revision from rev 5612 to 5616, just merge it backwards. It works in my end.
For instance:
svn merge -r 5616:5612 https://<your_svn_repository>/
It would contain a merged code back to former revision, then you could commit it.
In C++, you define your strings as
std::string MyString;
instead of
char MyString[20];
.
While writing C++ code, you encounter some C functions which require C string as parameter.
Like below:
void IAmACFunction(int abc, float bcd, const char * cstring);
Now there is a problem. You are working with C++ and you are using std::string
string variables. But this C function is asking for a C string. How do you convert your std::string
to a standard C string?
Like this:
std::string MyString;
// ...
MyString = "Hello world!";
// ...
IAmACFunction(5, 2.45f, MyString.c_str());
This is what c_str()
is for.
Note that, for std::wstring
strings, c_str()
returns a const w_char *
.
I posted this answer too over on superuser.
To do this you will need to set up a custom event filter in Task Scheduler.
Triggers > New > Custom > Edit Event > XML
and paste the following:
<QueryList>
<Query Id="0" Path="System">
<Select Path="System">
*[System[Provider[@Name='User32'] and (Level=4 or Level=0) and (EventID=1074)]]
and
*[EventData[Data[@Name='param5'] and (Data='power off')]]
</Select>
</Query>
</QueryList>
This will filter out the power off event only.
If you look in the event viewer you can see under Windows Logs > System under Details tab>XML View that there's this.
- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="User32" Guid="{xxxxx-xxxxxxxxxxx-xxxxxxxxxxxxxx-x-x}" EventSourceName="User32" />
<EventID Qualifiers="32768">1074</EventID>
<Version>0</Version>
<Level>4</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x8080000000000000</Keywords>
<TimeCreated SystemTime="2021-01-19T18:23:32.6133523Z" />
<EventRecordID>26696</EventRecordID>
<Correlation />
<Execution ProcessID="1056" ThreadID="11288" />
<Channel>System</Channel>
<Computer>DESKTOP-REDACTED</Computer>
<Security UserID="x-x-x-xx-xxxxxxxxxx-xxxxxxxxxx-xxxxxxxxxx-xxxx" />
</System>
- <EventData>
<Data Name="param1">Explorer.EXE</Data>
<Data Name="param2">DESKTOP-REDACTED</Data>
<Data Name="param3">Other (Unplanned)</Data>
<Data Name="param4">0x0</Data>
<Data Name="param5">power off</Data>
<Data Name="param6" />
<Data Name="param7">DESKTOP-REDACTED\username</Data>
</EventData>
</Event>
You can test the query with the query list code above in the event viewer by clicking
Create Custom View... > XML > Edit query manually
and pasting the code, giving it a name Power Off Events Only before you try it in the Task Scheduler.
I also encountered this issue with a module that was supposed to be compatible for python 2.7 and 3.7
what i found to fix the issue was importing:
from six.moves import input
this fixed the usability for both interpreters
you can read more about the six library here
I believe that, if you need to use the %20
variant, you could perhaps use rawurlencode()
.
string html = File.ReadAllText(path);
Instead of specifying a deployment target in pod post install, you can delete the pod deployment target, which causes the deployment target to be inherited from the podfile platform.
You may need to run pod install for the effect to take place.
platform :ios, '12.0'
post_install do |installer|
installer.pods_project.targets.each do |target|
target.build_configurations.each do |config|
config.build_settings.delete 'IPHONEOS_DEPLOYMENT_TARGET'
end
end
end
str==null ? str : str.substring(0, Math.min(str.length(), 10))
or,
str==null ? "" : str.substring(0, Math.min(str.length(), 10))
Works with null.
If you put set directory=""
in your exrc file, you will turn off the swap file. However, doing so will disable recovery.
More info here.
Here is filter
with Underscore library might help you, we remove item with name "ted"
$scope.items = _.filter($scope.items, function(item) {
return !(item.name == 'ted');
});
Since 0.11 hive has a NVL function
nvl(T value, T default_value)
which says Returns default value if value is null else returns value
Just to add on to the existing answers: hopefully, you'll encounter something more like this in the future:
>>> word = 'abc'
>>> L = list(word)
>>> L
['a', 'b', 'c']
>>> ''.join(L)
'abc'
But what you're dealing with right now, go with @Cameron's answer.
>>> word = 'a,b,c'
>>> L = word.split(',')
>>> L
['a', 'b', 'c']
>>> ','.join(L)
'a,b,c'
Lucups, Floris is right, but you comment that this didn't solve your problem. I ran into the same symptoms, where mysql (mariadb) will not accept the blank password it should accept, and '/var/lib/mysql' does not exist.
I found that this Moonpoint.com page was on-point. Perhaps, like me, you tried to start the mysqld service instead of the mariadb service. Try:
systemctl start mariadb.service
systemctl status mysqld service
Followed by the usual:
mysql_secure_installation
If you'r developing some .Net app (for ex. web app), you can make 1 line of error code (like invoke wrong function name) and reload your page, the .Net version will be show
I think the upgrade of Java will not help. You need to uninstall the old version and then install the latest java version to help you. Make sure that you restart the computer once you are done with the installation.
Hope it helps!
For a variable number of arguments like this the only way I'm aware of is to either generate the SQL explicitly or do something that involves populating a temporary table with the items you want and joining against the temp table.
O(1) means Random Access. In any Random Access Memory, the time taken to access any element at any location is the same. Here time can be any integer, but the only thing to remember is time taken to retrieve the element at (n-1)th or nth location will be same(ie constant).
Whereas O(n) is dependent on the size of n.
You could also use the exclude option in tsconfig.json file like so:
{
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"declaration": false,
"noImplicitAny": false,
"removeComments": true,
"noLib": false,
"emitDecoratorMetadata": true,
"experimentalDecorators": true
},
"exclude": [
"node_modules"
]
}
$last = count($arr_nav) - 1;
foreach ($arr_nav as $i => $row)
{
$isFirst = ($i == 0);
$isLast = ($i == $last);
echo ... $row['name'] ... $row['url'] ...;
}
Assume that we need to view some data in command prompt which are coming from a database table. First we create a list. Team_Details is my property class.
List<Team_Details> teamDetails = new List<Team_Details>();
Then you can connect to the database and do the data retrieving part and save it to the list as follows.
string connetionString = "Data Source=.;Initial Catalog=your DB name;Integrated Security=True;MultipleActiveResultSets=True";
using (SqlConnection conn = new SqlConnection(connetionString)){
string getTeamDetailsQuery = "select * from Team";
conn.Open();
using (SqlCommand cmd = new SqlCommand(getTeamDetailsQuery, conn))
{
SqlDataReader rdr = cmd.ExecuteReader();
{
teamDetails.Add(new Team_Details
{
Team_Name = rdr.GetString(rdr.GetOrdinal("Team_Name")),
Team_Lead = rdr.GetString(rdr.GetOrdinal("Team_Lead")),
});
}
Then you can print this list in command prompt as follows.
foreach (Team_Details i in teamDetails)
{
Console.WriteLine(i.Team_Name);
Console.WriteLine(i.Team_Lead);
}
By default Mysql store and return ‘date’ data type values in “YYYY/MM/DD” format. So if we want to display date in different format then we have to format date values as per our requirement in scripting language
And by the way what is the column data type and in which format you are storing the value.
When you use re.split
and the split pattern contains capturing groups, the groups are retained in the output. If you don't want this, use a non-capturing group instead.
This is jzm's improved answer (i cannot comment else i would comment her/his answer because s/he included errors). The function has a start/end range value, so it's more flexible, and... it works. This particular case is for day of month:
$scope.rangeCreator = function (minVal, maxVal) {
var arr = [];
for (var i = minVal; i <= maxVal; i++) {
arr.push(i);
}
return arr;
};
<div class="col-sm-1">
<select ng-model="monthDays">
<option ng-repeat="day in rangeCreator(1,31)">{{day}}</option>
</select>
</div>
You can use the first selector.
var header = $('.header:first')
You need to link with the math library:
gcc -o sphere sphere.c -lm
The error you are seeing: error: ld returned 1 exit status
is from the linker ld
(part of gcc that combines the object files) because it is unable to find where the function pow
is defined.
Including math.h
brings in the declaration of the various functions and not their definition. The def is present in the math library libm.a
. You need to link your program with this library so that the calls to functions like pow() are resolved.
Someone already has the answer.
$('video') will return an array of video items. It is totally a valid seletor!
so
$("video").each(function () { this.pause() });
will work.
I used:
git reset --hard
I lost some changes, but this is ok.
Well that may inspire u Those steps show how to create bordered table dynamically
here is the table view
<android.support.v4.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/nested_scroll_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scrollbars="none"
android:scrollingCache="true">
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/simpleTableLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="45dp"
android:layout_marginRight="45dp"
android:stretchColumns="*"
>
</TableLayout>
</android.support.v4.widget.NestedScrollView>
and here the row to use "attrib_row.xml"
<?xml version="1.0" encoding="utf-8"?>
<TableRow xmlns:android="http://schemas.android.com/apk/res/android"
android:background="@drawable/border"
>
<TextView
android:id="@+id/attrib_name"
android:textStyle="bold"
android:height="30dp"
android:background="@drawable/border"
android:gravity="center"
/>
<TextView
android:id="@+id/attrib_value"
android:gravity="center"
android:height="30dp"
android:textStyle="bold"
android:background="@drawable/border"
/>
</TableRow>
and we can add this xml file to drawable to add border to our table "border.xml"
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape= "rectangle">
<solid android:color="@color/colorAccent"/>
<stroke android:width="1dp" android:color="#000000"/>
</shape>
and finally here is the compact code written in Kotlin but it's easy to convert it to java if you need
well temps is an array list contain data: ArrayList<Double>()
fun CreateTable()
{
val temps=controller?.getTemps()
val rowHead = LayoutInflater.from(context).inflate(R.layout.attrib_row, null) as TableRow
(rowHead.findViewById<View>(R.id.attrib_name) as TextView).text=("time")
(rowHead.findViewById<View>(R.id.attrib_value) as TextView).text=("Value")
table!!.addView(rowHead)
for (i in 0 until temps!!.size) {
val row = LayoutInflater.from(context).inflate(R.layout.attrib_row, null) as TableRow
(row.findViewById<View>(R.id.attrib_name) as TextView).text=((i+1).toString())
(row.findViewById<View>(R.id.attrib_value) as TextView).text=(temps[i].toString())
table!!.addView(row)
}
table!!.requestLayout()
}
and you can use it in your fragment for example like this
override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
super.onViewCreated(view, savedInstanceState)
table = view?.findViewById<View>(R.id.simpleTableLayout) as TableLayout
CreateTable()
}
We can create static constructor
static class StaticParent
{
StaticParent()
{
//write your initialization code here
}
}
and it is always parameter less.
static class StaticParent
{
static int i =5;
static StaticParent(int i) //Gives error
{
//write your initialization code here
}
}
and it doesn't have the access modifier
You can use ViewChild
to access the input in your component. First, you need to add #someValue
to your input so you can read it in the component:
<input #myInput type="file" placeholder="File Name" name="filename" (change)="onChange($event)">
Then in your component you need to import ViewChild
from @angular/core
:
import { ViewChild } from '@angular/core';
Then you use ViewChild
to access the input from template:
@ViewChild('myInput')
myInputVariable: ElementRef;
Now you can use myInputVariable
to reset the selected file because it's a reference to input with #myInput
, for example create method reset()
that will be called on click
event of your button:
reset() {
console.log(this.myInputVariable.nativeElement.files);
this.myInputVariable.nativeElement.value = "";
console.log(this.myInputVariable.nativeElement.files);
}
First console.log
will print the file you selected, second console.log
will print an empty array because this.myInputVariable.nativeElement.value = "";
deletes selected file(s) from the input. We have to use this.myInputVariable.nativeElement.value = "";
to reset the value of the input because input's FileList
attribute is readonly, so it is impossible to just remove item from array. Here's working Plunker.
Or you can simply update without using join like this:
Update t1 set t1.Description = t2.Description from @tbl2 t2,tbl1 t1
where t1.ID= t2.ID
It is absolutely possible to install side-by-side several JRE/JDK versions. Moreover, you don't have to do anything special for that to happen, as Sun is creating a different folder for each (under Program Files).
There is no control panel to check which JRE works for each application. Basically, the JRE that will work would be the first in your PATH environment variable. You can change that, or the JAVA_HOME variable, or create specific cmd/bat files to launch the applications you desire, each with a different JRE in path.
.NET Framework 4 introduce new "CopyTo" method of Stream Class of System.IO namespace. Using this method we can copy one stream to another stream of different stream class.
Here is example for this.
FileStream objFileStream = File.Open(Server.MapPath("TextFile.txt"), FileMode.Open);
Response.Write(string.Format("FileStream Content length: {0}", objFileStream.Length.ToString()));
MemoryStream objMemoryStream = new MemoryStream();
// Copy File Stream to Memory Stream using CopyTo method
objFileStream.CopyTo(objMemoryStream);
Response.Write("<br/><br/>");
Response.Write(string.Format("MemoryStream Content length: {0}", objMemoryStream.Length.ToString()));
Response.Write("<br/><br/>");
You should use abstract class to initialize a property. You can't inititalize in Inteface .
using System.Windows.Forms;
public class message
{
static void Main()
{
MessageBox.Show("Hello World!");
}
}
This is because the element hadn't been loaded at the time when the bundle js was being executed.
I'd move the <script src="sample.js" type="text/javascript"></script>
to the very bottom of the index.html
file. This way you can ensure script is executed after all the html elements have been parsed and rendered .
For BIFF .xls files
application/vnd.ms-excel
For Excel2007 and above .xlsx files
application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
If you want to keep the database between uninstalls you have to put it on the SD Card. This is the only place that won't be deleted at the moment your app is deleted. But in return it can be deleted by the user every time.
If you put your DB on the SD Card you can't use the SQLiteOpenHelper anymore, but you can use the source and the architecture of this class to get some ideas on how to implement the creation, updating and opening of a databse.
Instead of adding and removing callbacks manually and having a bunch of delegate types declared everywhere:
// The hard way
public delegate void ObjectCallback(ObjectType broadcaster);
public class Object
{
public event ObjectCallback m_ObjectCallback;
void SetupListener()
{
ObjectCallback callback = null;
callback = (ObjectType broadcaster) =>
{
// one time logic here
broadcaster.m_ObjectCallback -= callback;
};
m_ObjectCallback += callback;
}
void BroadcastEvent()
{
m_ObjectCallback?.Invoke(this);
}
}
You could try this generic approach:
public class Object
{
public Broadcast<Object> m_EventToBroadcast = new Broadcast<Object>();
void SetupListener()
{
m_EventToBroadcast.SubscribeOnce((ObjectType broadcaster) => {
// one time logic here
});
}
~Object()
{
m_EventToBroadcast.Dispose();
m_EventToBroadcast = null;
}
void BroadcastEvent()
{
m_EventToBroadcast.Broadcast(this);
}
}
public delegate void ObjectDelegate<T>(T broadcaster);
public class Broadcast<T> : IDisposable
{
private event ObjectDelegate<T> m_Event;
private List<ObjectDelegate<T>> m_SingleSubscribers = new List<ObjectDelegate<T>>();
~Broadcast()
{
Dispose();
}
public void Dispose()
{
Clear();
System.GC.SuppressFinalize(this);
}
public void Clear()
{
m_SingleSubscribers.Clear();
m_Event = delegate { };
}
// add a one shot to this delegate that is removed after first broadcast
public void SubscribeOnce(ObjectDelegate<T> del)
{
m_Event += del;
m_SingleSubscribers.Add(del);
}
// add a recurring delegate that gets called each time
public void Subscribe(ObjectDelegate<T> del)
{
m_Event += del;
}
public void Unsubscribe(ObjectDelegate<T> del)
{
m_Event -= del;
}
public void Broadcast(T broadcaster)
{
m_Event?.Invoke(broadcaster);
for (int i = 0; i < m_SingleSubscribers.Count; ++i)
{
Unsubscribe(m_SingleSubscribers[i]);
}
m_SingleSubscribers.Clear();
}
}
You can through option
Try this with some modifications
<div trbidi="on">
<script type="text/javascript">
function MostrarVideo(idYouTube)
{
var contenedor = document.getElementById('divInnerVideo');
if(idYouTube == '')
{contenedor.innerHTML = '';
} else{
var url = idYouTube;
contenedor.innerHTML = '<iframe width="560" height="315" src="https://www.youtube.com/embed/'+ url +'" frameborder="0" allowfullscreen></iframe>';
}
}
</script>
<select onchange="MostrarVideo(this.value);">
<option selected disabled>please selected </option>
<option value="qycqF1CWcXg">test1</option>
<option value="hniPHaBgvWk">test2</option>
<option value="bOQA33VNo7w">test3</option>
</select>
<div id="divInnerVideo">
</div>
If you want to put a default page placed inside id="divInnerVideo"
example:
<div id="divInnerVideo">
<iframe width="560" height="315" src="https://www.youtube-nocookie.com/embed/pES8SezkV8w?rel=0&showinfo=0" frameborder="0" allowfullscreen></iframe>
</div>
I found that next time when you need to look up these information. Instead of opening a browser and google it, you could just type call /?
in your cmd and you'll get it:
...
%* in a batch script refers to all the arguments (e.g. %1 %2 %3
%4 %5 ...)
Substitution of batch parameters (%n) has been enhanced. You can
now use the following optional syntax:
%~1 - expands %1 removing any surrounding quotes (")
%~f1 - expands %1 to a fully qualified path name
%~d1 - expands %1 to a drive letter only
%~p1 - expands %1 to a path only
%~n1 - expands %1 to a file name only
%~x1 - expands %1 to a file extension only
%~s1 - expanded path contains short names only
%~a1 - expands %1 to file attributes
%~t1 - expands %1 to date/time of file
%~z1 - expands %1 to size of file
%~$PATH:1 - searches the directories listed in the PATH
environment variable and expands %1 to the fully
qualified name of the first one found. If the
environment variable name is not defined or the
file is not found by the search, then this
modifier expands to the empty string
The modifiers can be combined to get compound results:
%~dp1 - expands %1 to a drive letter and path only
%~nx1 - expands %1 to a file name and extension only
%~dp$PATH:1 - searches the directories listed in the PATH
environment variable for %1 and expands to the
drive letter and path of the first one found.
%~ftza1 - expands %1 to a DIR like output line
In the above examples %1 and PATH can be replaced by other
valid values. The %~ syntax is terminated by a valid argument
number. The %~ modifiers may not be used with %*
According to the documentation of the Item
property:
Sets or returns an item for a specified key in a Dictionary object.
In your case, you don't have an item whose key is 1
so doing:
s = d.Item(i)
actually creates a new key / value pair in your dictionary, and the value is empty because you have not used the optional newItem
argument.
The Dictionary also has the Items
method which allows looping over the indices:
a = d.Items
For i = 0 To d.Count - 1
s = a(i)
Next i
A flexbox way.
HTML:
<div class="parent">
<div>Images, text, buttons oh my!</div>
<div>Bottom</div>
</div>
CSS:
.parent {
display: flex;
flex-direction: column;
justify-content: space-between;
}
/* not necessary, just to visualize it */
.parent {
height: 500px;
border: 1px solid black;
}
.parent div {
border: 1px solid red;
}
Edit:
Source - Flexbox Guide
Browser support for flexbox - Caniuse
While creating a fragment transaction, make sure to add the following code.
// Replace whatever is in the fragment_container view with this fragment,
// and add the transaction to the back stack
transaction.replace(R.id.fragment_container, newFragment);
transaction.addToBackStack(null);
Also make sure, to commit the transaction after adding it to backstack
From Git documentation starting from version 2.0:
To add content for the whole tree, run:
git add --all :/
or
git add -A :/
To restrict the command to the current directory, run:
git add --all .
or
git add -A .
You are looking for Java generics
List<MyClass> list = new ArrayList<MyClass>();
Here's a tutorial http://docs.oracle.com/javase/tutorial/java/generics/index.html
<string name="hello_world"><font fgcolor="red">Hello</font>
</font fgcolor="blue">world!</font></string>
But note that this only works on a relatively short list of built-in colors: aqua, black, blue, fuchsia, green, grey, lime, maroon, navy, olive, purple, red, silver, teal, white, and yellow. See https://stackoverflow.com/a/31655150/338479 for a way to do it with arbitrary colors.
I got this problem once when I had a single quote as part of the header. When I removed it (i.e. renamed the respective column header from Jimmy's data
to Jimmys data
), the function returned no warnings.
The following reads a file passed as an argument line by line:
while IFS= read -r line; do
echo "Text read from file: $line"
done < my_filename.txt
This is the standard form for reading lines from a file in a loop. Explanation:
IFS=
(or IFS=''
) prevents leading/trailing whitespace from being trimmed.-r
prevents backslash escapes from being interpreted.Or you can put it in a bash file helper script, example contents:
#!/bin/bash
while IFS= read -r line; do
echo "Text read from file: $line"
done < "$1"
If the above is saved to a script with filename readfile
, it can be run as follows:
chmod +x readfile
./readfile filename.txt
If the file isn’t a standard POSIX text file (= not terminated by a newline character), the loop can be modified to handle trailing partial lines:
while IFS= read -r line || [[ -n "$line" ]]; do
echo "Text read from file: $line"
done < "$1"
Here, || [[ -n $line ]]
prevents the last line from being ignored if it doesn't end with a \n
(since read
returns a non-zero exit code when it encounters EOF).
If the commands inside the loop also read from standard input, the file descriptor used by read
can be chanced to something else (avoid the standard file descriptors), e.g.:
while IFS= read -r -u3 line; do
echo "Text read from file: $line"
done 3< "$1"
(Non-Bash shells might not know read -u3
; use read <&3
instead.)
In case you are using keras, there is a built in utility for that:
from keras.utils.np_utils import to_categorical
categorical_labels = to_categorical(int_labels, num_classes=3)
And it does pretty much the same as @YXD's answer (see source-code).
hopefully this will save images form your webcam
#include <opencv2/core/core.hpp>
#include <opencv2/highgui/highgui.hpp>
#include <opencv2/imgproc/imgproc.hpp>
#include <iostream>
using namespace std;
using namespace cv;
int main()
{
VideoCapture cap(0);
Mat save_img;
cap >> save_img;
char Esc = 0;
while (Esc != 27 && cap.isOpened()) {
bool Frame = cap.read(save_img);
if (!Frame || save_img.empty()) {
cout << "error: frame not read from webcam\n";
break;
}
namedWindow("save_img", CV_WINDOW_NORMAL);
imshow("imgOriginal", save_img);
Esc = waitKey(1);
}
imwrite("test.jpg",save_img);
}
Download url to bytes and convert bytes into stream:
using (var client = new WebClient())
{
var content = client.DownloadData(url);
using (var stream = new MemoryStream(content))
{
...
}
}
I was facing the similar issue when using the Channel Factory. it was actually due to wrong Contract specified in the endpoint.
Your project is mostly likely targetting .NET Framework 4 Client Profile. Check the application tab in your project properties.
This question has a good answer on the different versions: Target framework, what does ".NET Framework ... Client Profile" mean?
You could use some CSS and with the idea of kbrimington it should do the trick.
The CSS could be like this.
img {
width: 75px;
height: auto;
}
I got it from here: another post
The log file is not visible because the slf4j configuration file location needs to passed to the java run command using the following arguments .(e.g.)
-Dlogging.config={file_location}\log4j2.xml
or this:
-Dlog4j.configurationFile={file_location}\log4j2.xml
You can download a custom compiled bootstrap 3, just customize the @modal-backdrop-opacity from:
https://getbootstrap.com/docs/3.4/customize/
Customizing bootstrap 4 requires compiling from source, overriding $modal-backdrop-bg as described in:
https://getbootstrap.com/docs/4.4/getting-started/theming/
In the answers to Bootstrap 4 custom build generator / download there is a NodeJS workflow for compiling Bootstrap 4 from source, alone with some non-official Bootstrap 4 customizers.
Use Device Detector open source library, it offers a isBot() function: https://github.com/piwik/device-detector
By the way, for C-mode, I add (setq-default c-basic-offset 4)
to .emacs. See http://www.emacswiki.org/emacs/IndentingC for details.
You will also get this error message when you accidentally forget to define a setter for a property. For example:
public class Building
{
public string Description { get; }
}
var query =
from building in context.Buildings
select new
{
Desc = building.Description
};
int count = query.ToList();
The call to ToList will give the same error message. This one is a very subtle error and very hard to detect.
ThreadLocal in Java had been introduced on JDK 1.2 but was later generified in JDK 1.5 to introduce type safety on ThreadLocal variable.
ThreadLocal can be associated with Thread scope, all the code which is executed by Thread has access to ThreadLocal variables but two thread can not see each others ThreadLocal variable.
Each thread holds an exclusive copy of ThreadLocal variable which becomes eligible to Garbage collection after thread finished or died, normally or due to any Exception, Given those ThreadLocal variable doesn't have any other live references.
ThreadLocal variables in Java are generally private static fields in Classes and maintain its state inside Thread.
Read more: ThreadLocal in Java - Example Program and Tutorial
Withough testing, I'd try:
for c in session.query(Stuff).all():
c.foo = c.foo+1
session.commit()
(IIRC, commit() works without flush()).
I've found that at times doing a large query and then iterating in python can be up to 2 orders of magnitude faster than lots of queries. I assume that iterating over the query object is less efficient than iterating over a list generated by the all() method of the query object.
[Please note comment below - this did not speed things up at all].
It worth mentioning that the build time will be increased for VS 2015 users after:
Install-Package Microsoft.Net.Compilers
Those who are using VS 2015 and have to keep this package in their projects can fix increased build time.
Edit file packages\Microsoft.Net.Compilers.1.2.2\build\Microsoft.Net.Compilers.props
and clean it up. The file should look like:
<Project DefaultTargets="Build"
xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
</Project>
Doing so forces a project to be built as it was before adding Microsoft.Net.Compilers
package
I wanted to comment, but since my reputation won't qualify for commenting, it had to be an answer. Github will actually let you not only cancel a pull request, but also delete it by simply deleting the fork you are trying to push. Hope this may help some others googling this.
This code strip all event listeners
var old_element=document.getElementsByClassName(".update-cart");
var new_element = old_element.cloneNode(true);
old_element.parentNode.replaceChild(new_element, old_element);
Doing flutter clean
actually worked for me
Check out gVim. You can launch that in its own window.
gVim makes it really easy to manage multiple open buffers graphically.
You can also do the usual :e
to open a new file, CTRL+^ to toggle between buffers, etc...
Another cool feature lets you open a popup window that lists all the buffers you've worked on.
This allows you to switch between open buffers with a single click.
To do this, click on the Buffers menu at the top and click the dotted line with the scissors.
Otherwise you can just open a new tab from your terminal session and launch vi from there.
You can usually open a new tab from terminal with CTRL+T or CTRL+ALT+T
Once vi is launched, it's easy to open new files and switch between them.
Select element (or group of elements) having class "abc", not having class "xyz":
$('.abc:not(".xyz")')
When selecting regular CSS you can use .abc:not(.xyz)
.
If none of the above is working, you are probably working on EDI trasaction where you need to validate your result against an HIPPA schema or any other complex xsd for that matter. The requirement is that, say there 8 REF segments and any of them have to appear in any order and also not all are required, means to say you may have them in following order 1st REF, 3rd REF , 2nd REF, 9th REF. Under default situation EDI receive will fail, beacause default complex type is
<xs:sequence>
<xs:element.../>
</xs:sequence>
The situation is even complex when you are calling your element by refrence and then that element in its original spot is quite complex itself. for example:
<xs:element>
<xs:complexType>
<xs:sequence>
<element name="REF1" ref= "REF1_Mycustomelment" minOccurs="0" maxOccurs="1">
<element name="REF2" ref= "REF2_Mycustomelment" minOccurs="0" maxOccurs="1">
<element name="REF3" ref= "REF3_Mycustomelment" minOccurs="0" maxOccurs="1">
</xs:sequence>
</xs:complexType>
</xs:element>
Solution:
Here simply replacing "sequence" with "all" or using "choice" with min/max combinations won't work!
First thing replace "xs:sequence" with "<xs:all>"
Now,You need to make some changes where you are Referring the element from,
There go to:
<xs:annotation>
<xs:appinfo>
<b:recordinfo structure="delimited" field.........Biztalk/2003">
***Now in the above segment add trigger point in the end like this trigger_field="REF01_...complete name.." trigger_value = "38"
Do the same for other REF segments where trigger value will be different like say "18", "XX" , "YY" etc..so that your record info now looks like:b:recordinfo structure="delimited" field.........Biztalk/2003" trigger_field="REF01_...complete name.." trigger_value="38">
This will make each element unique, reason being All REF segements (above example) have same structure like REF01, REF02, REF03. And during validation the structure validation is ok but it doesn't let the values repeat because it tries to look for remaining values in first REF itself. Adding triggers will make them all unique and they will pass in any order and situational cases (like use 5 out 9 and not all 9/9).
Hope it helps you, for I spent almost 20 hrs on this.
Good Luck
Not in Linux at the moment, so can't double check, but I think it's:
rpm -ql ffmpeg
That should list all the files installed as part of the ffmpeg package.
If you want to avoid modulo, you can also use a combination of the four basic operations :)
26 - (26 // 7 * 7) = 5
An even better idea is to use the requests_toolbelt library, which can dump out both requests and responses as strings for you to print to the console. It handles all the tricky cases with files and encodings which the above solution does not handle well.
It's as easy as this:
import requests
from requests_toolbelt.utils import dump
resp = requests.get('https://httpbin.org/redirect/5')
data = dump.dump_all(resp)
print(data.decode('utf-8'))
Source: https://toolbelt.readthedocs.org/en/latest/dumputils.html
You can simply install it by typing:
pip install requests_toolbelt
you can do it by two simple point and change in your code
1.In your xml in anim folder of your project, Set the fade in and fade out duration time not equal
2.In you java class before the start of fade out animation, set second imageView visibility Gone then after fade out animation started set second imageView visibility which you want to fade in visible
fadeout.xml
<alpha
android:duration="4000"
android:fromAlpha="1.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="0.0" />
fadein.xml
<alpha
android:duration="6000"
android:fromAlpha="0.0"
android:interpolator="@android:anim/accelerate_interpolator"
android:toAlpha="1.0" />
In you java class
Animation animFadeOut = AnimationUtils.loadAnimation(this, R.anim.fade_out);
ImageView iv = (ImageView) findViewById(R.id.imageView1);
ImageView iv2 = (ImageView) findViewById(R.id.imageView2);
iv.setVisibility(View.VISIBLE);
iv2.setVisibility(View.GONE);
animFadeOut.reset();
iv.clearAnimation();
iv.startAnimation(animFadeOut);
Animation animFadeIn = AnimationUtils.loadAnimation(this, R.anim.fade_in);
iv2.setVisibility(View.VISIBLE);
animFadeIn.reset();
iv2.clearAnimation();
iv2.startAnimation(animFadeIn);
a = list(input("Enter a string\t: "))
def fun(a):
c =' '.join(['0'*(8-len(bin(ord(i))[2:]))+(bin(ord(i))[2:]) for i in a])
return c
print(fun(a))
According to the official ReactJs documentation, you need to pass argument in the default format witch is:
P = {} // default for your props
S = {} // default for yout state
interface Component<P = {}, S = {}> extends ComponentLifecycle<P, S> { }
Or to define your own type like below: (just an exp)
interface IProps {
clients: Readonly<IClientModel[]>;
onSubmit: (data: IClientModel) => void;
}
interface IState {
clients: Readonly<IClientModel[]>;
loading: boolean;
}
class ClientsPage extends React.Component<IProps, IState> {
// ...
}
The python shutil.copytree method its a mess. I've done one that works correctly:
def copydirectorykut(src, dst):
os.chdir(dst)
list=os.listdir(src)
nom= src+'.txt'
fitx= open(nom, 'w')
for item in list:
fitx.write("%s\n" % item)
fitx.close()
f = open(nom,'r')
for line in f.readlines():
if "." in line:
shutil.copy(src+'/'+line[:-1],dst+'/'+line[:-1])
else:
if not os.path.exists(dst+'/'+line[:-1]):
os.makedirs(dst+'/'+line[:-1])
copydirectorykut(src+'/'+line[:-1],dst+'/'+line[:-1])
copydirectorykut(src+'/'+line[:-1],dst+'/'+line[:-1])
f.close()
os.remove(nom)
os.chdir('..')
How about using mysql to generate the uuid for you?
$conn = new mysqli($servername, $username, $password, $dbname, $port);
$query = 'SELECT UUID()';
echo $conn->query($query)->fetch_row()[0];
Yes you can and actually, you should use StyleSheet.create
to create your styles.
import React, { Component } from 'react';
import {
StyleSheet,
Text,
View
} from 'react-native';
class Header extends Component {
constructor(props){
super(props);
}
render() {
const { title, style } = this.props;
const { header, text } = defaultStyle;
const combineStyles = StyleSheet.flatten([header, style]);
return (
<View style={ combineStyles }>
<Text style={ text }>
{ title }
</Text>
</View>
);
}
}
const defaultStyle = StyleSheet.create({
header: {
justifyContent: 'center',
alignItems: 'center',
backgroundColor: '#fff',
height: 60,
paddingTop: 15,
shadowColor: '#000',
shadowOffset: { width: 0, height: 3 },
shadowOpacity: 0.4,
elevation: 2,
position: 'relative'
},
text: {
color: '#0d4220',
fontSize: 16
}
});
export default Header;
And then:
<Header title="HOME" style={ {backgroundColor: '#10f1f0'} } />
XLSx in the new Office is just a zipped collection of XML and other files. So you could generate that and zip it accordingly.
Bonus: you can create a very nice template with styles and so on:
content.xml
(or xl/worksheets/sheet1.xml
) with your dataHowever I found ODS (openoffice) much more approachable (excel can still open it), here is what I found in content.xml
<table:table-row table:style-name="ro1">
<table:table-cell office:value-type="string" table:style-name="ce1">
<text:p>here be a1</text:p>
</table:table-cell>
<table:table-cell office:value-type="string" table:style-name="ce1">
<text:p>here is b1</text:p>
</table:table-cell>
<table:table-cell table:number-columns-repeated="16382"/>
</table:table-row>
Working with floats is bit messy:
This as many other 'trivial' layout tricks can be done with flexbox.
div.container {
display: flex;
justify-content: space-between;
}
In 2017 I think this is preferred solution (over float) if you don't have to support legacy browsers: https://caniuse.com/#feat=flexbox
Check fiddle how different float usages compares to flexbox ("may include some competing answers"): https://jsfiddle.net/b244s19k/25/. If you still need to stick with float I recommended third version of course.
In C++11 you can. A note beforehand: Don't new
the array, there's no need for that.
First, string[] strArray
is a syntax error, that should either be string* strArray
or string strArray[]
. And I assume that it's just for the sake of the example that you don't pass any size parameter.
#include <string>
void foo(std::string* strArray, unsigned size){
// do stuff...
}
template<class T>
using alias = T;
int main(){
foo(alias<std::string[]>{"hi", "there"}, 2);
}
Note that it would be better if you didn't need to pass the array size as an extra parameter, and thankfully there is a way: Templates!
template<unsigned N>
void foo(int const (&arr)[N]){
// ...
}
Note that this will only match stack arrays, like int x[5] = ...
. Or temporary ones, created by the use of alias
above.
int main(){
foo(alias<int[]>{1, 2, 3});
}
I couldn't be more concise than this. For all your other needs and information, Google is your friend.
Try this:
List<Double> list = Arrays.asList(1.38, 2.56, 4.3);
which returns a fixed size list.
If you need an expandable list, pass this result to the ArrayList
constructor:
List<Double> list = new ArrayList<>(Arrays.asList(1.38, 2.56, 4.3));
A (partial) practical work-around is to put things into a throw-away function.
Pasting
x = 1
x += 1
print(x)
results in
>>> x = 1
x += 1
print(x)
File "<stdin>", line 1
x += 1
print(x)
^
SyntaxError: multiple statements found while compiling a single statement
>>>
However, pasting
def abc():
x = 1
x += 1
print(x)
works:
>>> def abc():
x = 1
x += 1
print(x)
>>> abc()
2
>>>
Of course, this is OK for a quick one-off, won't work for everything you might want to do, etc. But then, going to ipython
/ jupyter qtconsole
is probably the next simplest option.
As an alternative to @Mark Byers' approach, you can use while True
:
guess = 50 # this should be outside the loop, I think
while True: # infinite loop
n = raw_input("\n\nTrue, False or Correct?: ")
if n == "Correct":
break # stops the loop
elif n == "True":
# etc.
No. You can't send headers after they were sent. Try to use hooks in wordpress
If you want to check through a server.php or whatever, you want to call it with the following:
<?php
phpinfo(INFO_VARIABLES);
?>
or
<?php
header("Content-type: text/plain");
print_r($_SERVER);
?>
Then access it with all the valid URLs for your site and check out the difference.
The least complicated, most straight-forward way of doing this is by simply wrapping your main query with the pivot in a common table expression, then grouping/aggregating.
WITH PivotCTE AS
(
select * from mytransactions
pivot (sum (totalcount) for country in ([Australia], [Austria])) as pvt
)
SELECT
numericmonth,
chardate,
SUM(totalamount) AS totalamount,
SUM(ISNULL(Australia, 0)) AS Australia,
SUM(ISNULL(Austria, 0)) Austria
FROM PivotCTE
GROUP BY numericmonth, chardate
The ISNULL
is to stop a NULL
value from nullifying the sum (because NULL
+ any value = NULL
)
If you want to pretty print the data frames, then you can use tabulate package.
import pandas as pd
import numpy as np
from tabulate import tabulate
def pprint_df(dframe):
print tabulate(dframe, headers='keys', tablefmt='psql', showindex=False)
df = pd.DataFrame({'col1': np.random.randint(0, 100, 10),
'col2': np.random.randint(50, 100, 10),
'col3': np.random.randint(10, 10000, 10)})
pprint_df(df)
Specifically, the showindex=False
, as the name says, allows you to not show index. The output would look as follows:
+--------+--------+--------+
| col1 | col2 | col3 |
|--------+--------+--------|
| 15 | 76 | 5175 |
| 30 | 97 | 3331 |
| 34 | 56 | 3513 |
| 50 | 65 | 203 |
| 84 | 75 | 7559 |
| 41 | 82 | 939 |
| 78 | 59 | 4971 |
| 98 | 99 | 167 |
| 81 | 99 | 6527 |
| 17 | 94 | 4267 |
+--------+--------+--------+
ALTER TABLE tablename add newcolumn int
update tablename set newcolumn=existingcolumnname
ALTER TABLE tablename DROP COLUMN existingcolumnname;
EXEC sp_RENAME 'tablename.oldcolumn' , 'newcolumnname', 'COLUMN'
update tablename set newcolumnname=value where condition
However above code works only if there is no primary-foreign key relation
Use cd
in a subshell; the shorthand way to use this kind of subshell is parentheses.
(cd wherever; mycommand ...)
That said, if your command has an environment that it requires, it should really ensure that environment itself instead of putting the onus on anything that might want to use it (unless it's an internal command used in very specific circumstances in the context of a well defined larger system, such that any caller already needs to ensure the environment it requires). Usually this would be some kind of shell script wrapper.
INSERT INTO table1 (col1, col2)
SELECT "a string", 5, TheNameOfTheFieldInTable2
FROM table2 where ...
you also use this:
background-size:contain;
height: 0;
width: 100%;
padding-top: 66,64%;
I don't know your div-values, but let's assume you've got those.
height: auto;
max-width: 600px;
Again, those are just random numbers. It could quite hard to make the background-image (if you would want to) with a fixed width for the div, so better use max-width. And actually it isn't complicated to fill a div with an background-image, just make sure you style the parent element the right way, so the image has a place it can go into.
Chris
just set the width of the td/column you want to be fixed and the rest will expand.
<td width="200"></td>
While indenting your code in the function (which is ok), you did also indent the lines of the raw message string. But leading white space implies folding (concatenation) of the header lines, as described in sections 2.2.3 and 3.2.3 of RFC 2822 - Internet Message Format:
Each header field is logically a single line of characters comprising the field name, the colon, and the field body. For convenience however, and to deal with the 998/78 character limitations per line, the field body portion of a header field can be split into a multiple line representation; this is called "folding".
In the function form of your sendmail
call, all lines are starting with white space and so are "unfolded" (concatenated) and you are trying to send
From: [email protected] To: [email protected] Subject: Hello! This message was sent with Python's smtplib.
Other than our mind suggests, smtplib
will not understand the To:
and Subject:
headers any longer, because these names are only recognized at the beginning of a line. Instead smtplib
will assume a very long sender email address:
[email protected] To: [email protected] Subject: Hello! This message was sent with Python's smtplib.
This won't work and so comes your Exception.
The solution is simple: Just preserve the message
string as it was before. This can be done by a function (as Zeeshan suggested) or right away in the source code:
import smtplib
def sendMail(FROM,TO,SUBJECT,TEXT,SERVER):
"""this is some test documentation in the function"""
message = """\
From: %s
To: %s
Subject: %s
%s
""" % (FROM, ", ".join(TO), SUBJECT, TEXT)
# Send the mail
server = smtplib.SMTP(SERVER)
server.sendmail(FROM, TO, message)
server.quit()
Now the unfolding does not occur and you send
From: [email protected]
To: [email protected]
Subject: Hello!
This message was sent with Python's smtplib.
which is what works and what was done by your old code.
Note that I was also preserving the empty line between headers and body to accommodate section 3.5 of the RFC (which is required) and put the include outside the function according to the Python style guide PEP-0008 (which is optional).
The answer may be language dependent, but since you don't mention one, here is what I just came up with in js:
var a = ['1','','2','','3'].join('\n');
console.log(a.match(/^.{0}$/gm)); // ["", ""]
// the "." is for readability. it doesn't really matter
a.match(/^[you can put whatever the hell you want and this will also work just the same]{0}$/gm)
You could also do a.match(/^(.{10,}|.{0})$/gm)
to match empty lines OR lines that meet a criteria. (This is what I was looking for to end up here.)
I know that ^ will match the beginning of any line and $ will match the end of any line
This is only true if you have the multiline flag turned on, otherwise it will only match the beginning/end of the string. I'm assuming you know this and are implying that, but wanted to note it here for learners.
There are ports of flex and bison for windows here: http://gnuwin32.sourceforge.net/
flex is the free implementation of lex. bison is the free implementation of yacc.
This is a part from a REST-Service I´ve written recently.
var select = $("#productSelect")
for (var prop in data) {
var option = document.createElement('option');
option.innerHTML = data[prop].ProduktName
option.value = data[prop].ProduktName;
select.append(option)
}
The reason why im posting this is because appendChild() wasn´t working in my case so I decided to put up another possibility that works aswell.
PHP by itself has no SMS module or functions and doesn't allow you to send SMS.
SMS ( Short Messaging System) is a GSM technology an you need a GSM provider that will provide this service for you and may have an PHP API implementation for it.
Usually people in telecom business use Asterisk to handle calls and sms programming.
$('#summernote').summernote({
height: ($(window).height() - 300),
callbacks: {
onImageUpload: function(image) {
uploadImage(image[0]);
}
}
});
function uploadImage(image) {
var data = new FormData();
data.append("image", image);
$.ajax({
url: 'Your url to deal with your image',
cache: false,
contentType: false,
processData: false,
data: data,
type: "post",
success: function(url) {
var image = $('<img>').attr('src', 'http://' + url);
$('#summernote').summernote("insertNode", image[0]);
},
error: function(data) {
console.log(data);
}
});
}
On Linux when write()ing into a socket which the other side, unknown to you, closed will provoke a SIGPIPE signal/exception however you want to call it. However if you don't want to be caught out by the SIGPIPE you can use send() with the flag MSG_NOSIGNAL. The send() call will return with -1 and in this case you can check errno which will tell you that you tried to write a broken pipe (in this case a socket) with the value EPIPE which according to errno.h is equivalent to 32. As a reaction to the EPIPE you could double back and try to reopen the socket and try to send your information again.
For window if you download scr folder say apache-jmeter-5.3_src then you won't find ApacheJMeter.jar file insider bin folder.One might have downloaded zip file under source section. Form this link download zip file under binaries section and click on ApacheJMeter.jar from bin folder https://jmeter.apache.org/download_jmeter.cgi
What exactly are you doing in //do stuff
?
You may be able to do something like:
(scrollLeft < 1000) ? //do stuff
: (scrollLeft > 1000 && scrollLeft < 2000) ? //do stuff
: (scrollLeft > 2000) ? //do stuff
: //etc.
This not work on IOS, setState -> render -> not change the text, but can change other. The textinput can't change itself value when textOnChange.
by the way, This work well on Android.
try following
try {
String[] command = {"cmd.exe", "/C", "Start", "D:\\test.bat"};
Process p = Runtime.getRuntime().exec(command);
} catch (IOException ex) {
}
In current version of debian you have pyclean
script which is in python-minimal
package.
Usage is simple:
pyclean .
If you want XCode on another OS, I suggest cloud computing. That way your app is being developed on a Mac and can be submitted to the App Store.
Simply use this:
List<string> list = new List<string>() { "single value" };
You can even omit the () braces:
List<string> list = new List<string> { "single value" };
Update: of course this also works for more than one entry:
List<string> list = new List<string> { "value1", "value2", ... };
Mysql-native has been outdated so it became MySQL2 that is a new module created with the help of the original MySQL module's team. This module has more features and I think it has what you want as it has prepared statements(by using.execute()) like in PHP for more security.
It's also very active(the last change was from 2-1 days) I didn't try it before but I think it's what you want and more.
That is the mode with which you are opening the file. "wb" means that you are writing to the file (w), and that you are writing in binary mode (b).
Check out the documentation for more: clicky
I found this while passing and looking for answers on how to compile a set of csvs into a single excel doc with the worksheets (tabs) named after the csv files. It is a nice function. Sadly, I cannot run them on my network :( so i do not know how well it works.
Function Release-Ref ($ref)
{
([System.Runtime.InteropServices.Marshal]::ReleaseComObject(
[System.__ComObject]$ref) -gt 0)
[System.GC]::Collect()
[System.GC]::WaitForPendingFinalizers()
}
Function ConvertCSV-ToExcel
{
<#
.SYNOPSIS
Converts one or more CSV files into an excel file.
.DESCRIPTION
Converts one or more CSV files into an excel file. Each CSV file is imported into its own worksheet with the name of the
file being the name of the worksheet.
.PARAMETER inputfile
Name of the CSV file being converted
.PARAMETER output
Name of the converted excel file
.EXAMPLE
Get-ChildItem *.csv | ConvertCSV-ToExcel -output ‘report.xlsx’
.EXAMPLE
ConvertCSV-ToExcel -inputfile ‘file.csv’ -output ‘report.xlsx’
.EXAMPLE
ConvertCSV-ToExcel -inputfile @(“test1.csv”,”test2.csv”) -output ‘report.xlsx’
.NOTES
Author: Boe Prox
Date Created: 01SEPT210
Last Modified:
#>
#Requires -version 2.0
[CmdletBinding(
SupportsShouldProcess = $True,
ConfirmImpact = ‘low’,
DefaultParameterSetName = ‘file’
)]
Param (
[Parameter(
ValueFromPipeline=$True,
Position=0,
Mandatory=$True,
HelpMessage=”Name of CSV/s to import”)]
[ValidateNotNullOrEmpty()]
[array]$inputfile,
[Parameter(
ValueFromPipeline=$False,
Position=1,
Mandatory=$True,
HelpMessage=”Name of excel file output”)]
[ValidateNotNullOrEmpty()]
[string]$output
)
Begin {
#Configure regular expression to match full path of each file
[regex]$regex = “^\w\:\\”
#Find the number of CSVs being imported
$count = ($inputfile.count -1)
#Create Excel Com Object
$excel = new-object -com excel.application
#Disable alerts
$excel.DisplayAlerts = $False
#Show Excel application
$excel.V isible = $False
#Add workbook
$workbook = $excel.workbooks.Add()
#Remove other worksheets
$workbook.worksheets.Item(2).delete()
#After the first worksheet is removed,the next one takes its place
$workbook.worksheets.Item(2).delete()
#Define initial worksheet number
$i = 1
}
Process {
ForEach ($input in $inputfile) {
#If more than one file, create another worksheet for each file
If ($i -gt 1) {
$workbook.worksheets.Add() | Out-Null
}
#Use the first worksheet in the workbook (also the newest created worksheet is always 1)
$worksheet = $workbook.worksheets.Item(1)
#Add name of CSV as worksheet name
$worksheet.name = “$((GCI $input).basename)”
#Open the CSV file in Excel, must be converted into complete path if no already done
If ($regex.ismatch($input)) {
$tempcsv = $excel.Workbooks.Open($input)
}
ElseIf ($regex.ismatch(“$($input.fullname)”)) {
$tempcsv = $excel.Workbooks.Open(“$($input.fullname)”)
}
Else {
$tempcsv = $excel.Workbooks.Open(“$($pwd)\$input”)
}
$tempsheet = $tempcsv.Worksheets.Item(1)
#Copy contents of the CSV file
$tempSheet.UsedRange.Copy() | Out-Null
#Paste contents of CSV into existing workbook
$worksheet.Paste()
#Close temp workbook
$tempcsv.close()
#Select all used cells
$range = $worksheet.UsedRange
#Autofit the columns
$range.EntireColumn.Autofit() | out-null
$i++
}
}
End {
#Save spreadsheet
$workbook.saveas(“$pwd\$output”)
Write-Host -Fore Green “File saved to $pwd\$output”
#Close Excel
$excel.quit()
#Release processes for Excel
$a = Release-Ref($range)
}
}
You also can try out this
final WebView webView = new WebView(this);
webView.loadDataWithBaseURL(null, content, "text/html", "UTF-8", null);
I believe what you want is:
SELECT ItemName, GROUP_CONCAT(DepartmentId) FROM table_name GROUP BY ItemName
If you're using MySQL
Reference
Use like this for Orientation support
UIView *view = [[UIView alloc] initWithFrame:CGRectMake(0,0,320,40)];
[view setBackgroundColor:[UIColor clearColor]];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight ];
UILabel *nameLabel = [[UILabel alloc] init];
[nameLabel setFrame:CGRectMake(0, 0, 320, 40)];
[nameLabel setBackgroundColor:[UIColor clearColor]];
[nameLabel setAutoresizingMask:UIViewAutoresizingFlexibleTopMargin | UIViewAutoresizingFlexibleBottomMargin |UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleLeftMargin];
[nameLabel setTextColor:[UIColor whiteColor]];
[nameLabel setFont:[UIFont boldSystemFontOfSize:17]];
[nameLabel setText:titleString];
[nameLabel setTextAlignment:UITextAlignmentCenter];
[view addSubview:nameLabel];
[nameLabel release];
self.navigationItem.titleView = view;
[view release];
Use COALESCE
to avoid that outcome.
SELECT COALESCE(SUM(column),0)
FROM table
WHERE ...
To see it in action, please see this sql fiddle: http://www.sqlfiddle.com/#!2/d1542/3/0
More Information:
Given three tables (one with all numbers, one with all nulls, and one with a mixture):
MySQL 5.5.32 Schema Setup:
CREATE TABLE foo
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
INSERT INTO foo (val) VALUES
(null),(1),(null),(2),(null),(3),(null),(4),(null),(5),(null),(6),(null);
CREATE TABLE bar
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
INSERT INTO bar (val) VALUES
(1),(2),(3),(4),(5),(6);
CREATE TABLE baz
(
id INT NOT NULL AUTO_INCREMENT PRIMARY KEY,
val INT
);
INSERT INTO baz (val) VALUES
(null),(null),(null),(null),(null),(null);
Query 1:
SELECT 'foo' as table_name,
'mixed null/non-null' as description,
21 as expected_sum,
COALESCE(SUM(val), 0) as actual_sum
FROM foo
UNION ALL
SELECT 'bar' as table_name,
'all non-null' as description,
21 as expected_sum,
COALESCE(SUM(val), 0) as actual_sum
FROM bar
UNION ALL
SELECT 'baz' as table_name,
'all null' as description,
0 as expected_sum,
COALESCE(SUM(val), 0) as actual_sum
FROM baz
| TABLE_NAME | DESCRIPTION | EXPECTED_SUM | ACTUAL_SUM |
|------------|---------------------|--------------|------------|
| foo | mixed null/non-null | 21 | 21 |
| bar | all non-null | 21 | 21 |
| baz | all null | 0 | 0 |
Through CSS:
<label for="">
<input type="checkbox" style="pointer-events: none; tabindex: -1;" checked> Label
</label>
pointer-events not supported in IE<10
If your constructor is similar to this one:
public Example(String example) {
if (example == null) {
throw new NullPointerException();
}
//do fun things with valid example here
}
Then, when you run this JUnit test you will get a green bar:
@Test(expected = NullPointerException.class)
public void constructorShouldThrowNullPointerException() {
Example example = new Example(null);
}
I had the same problem. The reason - wrong proxy was configured and because of that npm was unable to download packages.
So your best bet is to the see the output of
$ npm install --verbose
and identify the problem. If you have never configured proxy, then possible causes can be
This question has mentioned for the OSX, but it happened to me in my linux OS.
I tried using nvm alias default <version>
but for each new terminal session the used node version was forgotten.
so, here is the solution that i figured out.
make sure to set a default alias for node version,put the following code in .bashrc, and source .bashrc
.
export NVM_DIR="/home/bonnie/.nvm"
## If the file exists and is not empty
if [ -s "$NVM_DIR/nvm.sh" ]; then
## Source it
source "$NVM_DIR/nvm.sh"
fi
NODE_DEFAULT_VERSION=$(<"$NVM_DIR/alias/default")
export PATH="$NVM_DIR/versions/node/$NODE_DEFAULT_VERSION/bin":$PATH
Simplest of all solutions:
In Python 3.x:
import urllib.request
url = "https://api.github.com/users?since=100"
request = urllib.request.Request(url)
response = urllib.request.urlopen(request)
data_content = response.read()
print(data_content)
In reply to Dimitrys answer but using Ajax.BeginForm
the following works at least with MVC >5 (4 not tested).
write a model as shown in the other answers,
In the "parent view" you will probably use a table to show the data.
Model should be an ienumerable. I assume, the model has an id
-property. Howeverm below the template, a placeholder for the modal and corresponding javascript
<table>
@foreach (var item in Model)
{
<tr> <td id="[email protected]">
@Html.Partial("dataRowView", item)
</td> </tr>
}
</table>
<div class="modal fade" id="editor-container" tabindex="-1"
role="dialog" aria-labelledby="editor-title">
<div class="modal-dialog modal-lg" role="document">
<div class="modal-content" id="editor-content-container"></div>
</div>
</div>
<script type="text/javascript">
$(function () {
$('.editor-container').click(function () {
var url = "/area/controller/MyEditAction";
var id = $(this).attr('data-id');
$.get(url + '/' + id, function (data) {
$('#editor-content-container').html(data);
$('#editor-container').modal('show');
});
});
});
function success(data,status,xhr) {
$('#editor-container').modal('hide');
$('#editor-content-container').html("");
}
function failure(xhr,status,error) {
$('#editor-content-container').html(xhr.responseText);
$('#editor-container').modal('show');
}
</script>
note the "editor-success-id" in data table rows.
The dataRowView
is a partial containing the presentation of an model's item.
@model ModelView
@{
var item = Model;
}
<div class="row">
// some data
<button type="button" class="btn btn-danger editor-container" data-id="@item.Id">Edit</button>
</div>
Write the partial view that is called by clicking on row's button (via JS $('.editor-container').click(function () ...
).
@model Model
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal" aria-label="Close">
<span aria-hidden="true">×</span>
</button>
<h4 class="modal-title" id="editor-title">Title</h4>
</div>
@using (Ajax.BeginForm("MyEditAction", "Controller", FormMethod.Post,
new AjaxOptions
{
InsertionMode = InsertionMode.Replace,
HttpMethod = "POST",
UpdateTargetId = "editor-success-" + @Model.Id,
OnSuccess = "success",
OnFailure = "failure",
}))
{
@Html.ValidationSummary()
@Html.AntiForgeryToken()
@Html.HiddenFor(model => model.Id)
<div class="modal-body">
<div class="form-horizontal">
// Models input fields
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Cancel</button>
<button type="submit" class="btn btn-primary">Save</button>
</div>
}
This is where magic happens: in AjaxOptions
, UpdateTargetId will replace the data row after editing, onfailure and onsuccess will control the modal.
This is, the modal will only close when editing was successful and there have been no errors, otherwise the modal will be displayed after the ajax-posting to display error messages, e.g. the validation summary.
But how to get ajaxform to know if there is an error? This is the controller part, just change response.statuscode as below in step 5:
the corresponding controller action method for the partial edit modal
[HttpGet]
public async Task<ActionResult> EditPartData(Guid? id)
{
// Find the data row and return the edit form
Model input = await db.Models.FindAsync(id);
return PartialView("EditModel", input);
}
[HttpPost, ValidateAntiForgeryToken]
public async Task<ActionResult> MyEditAction([Bind(Include =
"Id,Fields,...")] ModelView input)
{
if (TryValidateModel(input))
{
// save changes, return new data row
// status code is something in 200-range
db.Entry(input).State = EntityState.Modified;
await db.SaveChangesAsync();
return PartialView("dataRowView", (ModelView)input);
}
// set the "error status code" that will redisplay the modal
Response.StatusCode = 400;
// and return the edit form, that will be displayed as a
// modal again - including the modelstate errors!
return PartialView("EditModel", (Model)input);
}
This way, if an error occurs while editing Model data in a modal window, the error will be displayed in the modal with validationsummary methods of MVC; but if changes were committed successfully, the modified data table will be displayed and the modal window disappears.
Note: you get ajaxoptions working, you need to tell your bundles configuration to bind jquery.unobtrusive-ajax.js
(may be installed by NuGet):
bundles.Add(new ScriptBundle("~/bundles/jqueryajax").Include(
"~/Scripts/jquery.unobtrusive-ajax.js"));
An old thread, nonetheless someone may benefit from this:
li:not(:last-child)::after { content: ","; }
li:last-child::after { content: "."; }
This should work in CSS3 and [untested] CSS2.
A segmentation fault is caused by a request for a page that the process does not have listed in its descriptor table, or an invalid request for a page that it does have listed (e.g. a write request on a read-only page).
A dangling pointer is a pointer that may or may not point to a valid page, but does point to an "unexpected" segment of memory.
According to the Go spec, the order of iteration over a map is undefined, and may vary between runs of the program. In practice, not only is it undefined, it's actually intentionally randomized. This is because it used to be predictable, and the Go language developers didn't want people relying on unspecified behavior, so they intentionally randomized it so that relying on this behavior was impossible.
What you'll have to do, then, is pull the keys into a slice, sort them, and then range over the slice like this:
var m map[keyType]valueType
keys := sliceOfKeys(m) // you'll have to implement this
for _, k := range keys {
v := m[k]
// k is the key and v is the value; do your computation here
}
SELECT student, SUM(mark1+mark2+mark3+....+markn) AS Total FROM your_table
If anyone comes here after me, this is the answer that worked for me.
NOTE: please make to read the comments before using this, this not complete. The best advice for update queries I can give is to switch to SqlServer ;)
update mytable t
set z = (
with comp as (
select b.*, 42 as computed
from mytable t
where bs_id = 1
)
select c.computed
from comp c
where c.id = t.id
)
Good luck,
GJ