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Invalid postback or callback argument. Event validation is enabled using '
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The problem is that ASP.NET does not get to know about this extra or removed listitem.
You got an number of options (listed below):
Disable eventvalidation (bad idea, because you lose a little of security that come with very little cost).
Use ASP....
How to execute an .SQL script file using c#
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To me it didn't work when using .net 4.0/4.5, when referencing 110\SDK\Assemblies The solution I found was changing the app.Config to <startup useLegacyV2RuntimeActivationPolicy="true"> <supportedRuntime version="v4.0" sku=".NETFramework,Version...
Date vs DateTime
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Unfortunately, not in the .Net BCL. Dates are usually represented as a DateTime object with the time set to midnight.
As you can guess, this means that you have all the attendant timezone issues around it, even though for a Date object you'd want abs...
ViewBag, ViewData and TempData
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ViewBag is just a dynamic wrapper around ViewData and exists only in ASP.NET MVC 3.
This being said, none of those two constructs should ever be used. You should use view models and strongly typed views. So the correct pattern is the following:
View model:
public class MyViewModel
{
public ...
Why is the console window closing immediately once displayed my output?
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I'm a little bit late to the party, but: in Visual Studio 2019 for .NET Core projects the console doesn't close automatically by default. You can configure the behaviour through menu Tools → Options → Debugging → General → Automatically close the console when debugging stops. If you g...
How to create relationships in MySQL
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Here are a couple of resources that will help get started: http://www.anchor.com.au/hosting/support/CreatingAQuickMySQLRelationalDatabase and http://code.tutsplus.com/articles/sql-for-beginners-part-3-database-relationships--net-8561
Also as others said, use a GUI - try downloading and ins...
How to recursively list all the files in a directory in C#?
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Note that in .NET 4.0 there are (supposedly) iterator-based (rather than array-based) file functions built in:
foreach (string file in Directory.EnumerateFiles(path, "*.*", SearchOption.AllDirectories))
{
Console.WriteLine(file);
}
...
How to flip background image using CSS?
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According to w3schools:
http://www.w3schools.com/cssref/css3_pr_transform.asp
The transform property is supported in Internet Explorer 10, Firefox, and Opera.
Internet Explorer 9 supports an alternative, the -ms-transform property (2D transforms only...
phpmyadmin logs out after 1440 secs
... ridiculously long session timeout for all your PHP sites.
source: http://www.sitekickr.com/blog/increase-phpmyadmin-timeout/
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What is the simplest and most robust way to get the user's current location on Android?
... LocationResult locationResult;
boolean gps_enabled=false;
boolean network_enabled=false;
public boolean getLocation(Context context, LocationResult result)
{
//I use LocationResult callback class to pass location value from MyLocation to user code.
locationResult=re...