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How do I use DateTime.TryParse with a Nullable?
...Jason suggested:
DateTime? d; DateTime dt;
d = DateTime.TryParse(DateTime.Now.ToString(), out dt)? dt : (DateTime?)null;
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Give examples of functions which demonstrate covariance and contravariance in the cases of both over
...t = aList;
List<? super String> contravariantList = aList;
You can now access all methods of covariantList that doesn't take a generic parameter (as it must be something "extends Object"), but getters will work fine (as the returned object will always be of type "Object")
The opposite is tr...
How to go back to previous page if back button is pressed in WebView?
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If using Android 2.2 and above (which is most devices now), the following code will get you what you want.
@Override
public void onBackPressed() {
if (webView.canGoBack()) {
webView.goBack();
} else {
super.onBackPressed();
}
}
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How can I convert bigint (UNIX timestamp) to datetime in SQL Server?
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@Whitecat Don't know if you already solved your problem, but watch the casing! Maybe your database collation setting is set to something like 'SQL_Latin1_General_CP1_CS_AS', CS is the keyword here. It stands for "CaseSensitiv" therefor your c...
How do I get the current username in .NET using C#?
...t the Name associated with the username?
– SearchForKnowledge
Jun 25 '15 at 15:23
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Handler vs AsyncTask vs Thread [closed]
... and AsyncTask. These classes do most of the work for us, we only need to know which methods to override.
The difference between Handler and AsyncTask is: Use AsyncTask when Caller thread is a UI Thread.
This is what android document says:
AsyncTask enables proper and easy use of the UI thread....
Maven package/install without test (skip tests)
...ant, I need to avoid running tests while package the application. Anybody knows how run the package with out test?
21 Answe...
Rolling back local and remote git repository by 1 commit
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is there a way to know if somebody has pulled the repo?
– Pinkerton
Jul 5 '16 at 19:26
4
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[ :Unexpected operator in shell programming [duplicate]
... This answer is partially wrong. The fully correct one is the now top-voted by Nietzche-jou. sh supports [. == works in Bash built-ins [[, test and [ while a single = is required by POSIX version of [ and test. (Bash manual says the same, BTW.) Requiring Bash because of this is needless...
Send attachments with PHP Mail()?
...he main script file -- require_once('path/to/file/class.phpmailer.php');
Now, sending emails with attachments goes from being insanely difficult to incredibly easy:
use PHPMailer\PHPMailer\PHPMailer;
use PHPMailer\PHPMailer\Exception;
$email = new PHPMailer();
$email->SetFrom('you@example.com...