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Validation failed for one or more entities. See 'EntityValidationErrors' property for more details [
...the savechanges method in your own DbContext class, and then add try catch block, where the try block just try to save (base.SaveChanges()), and the catch block catches only DbEntityValidationException. This way, you don't need to add it in every place you save your changes.
– ...
Why does Sql Server keep executing after raiserror when xact_abort is on?
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If you use a try/catch block a raiserror error number with severity 11-19 will cause execution to jump to the catch block.
Any severity above 16 is a system error. To demonstrate the following code sets up a try/catch block and executes a stored ...
How do you use the ? : (conditional) operator in JavaScript?
... = 'Hello ' + (username || 'guest');
This is Javascripts equivallent of PHP's shorthand ternary operator ?:
Or even:
var welcomeMessage = 'Hello ' + (username || something || maybethis || 'guest');
It evaluates the variable, and if it's false or unset, it goes on to the next.
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Change bootstrap navbar collapse breakpoint without using LESS
... because there is another rule navbar-collapse.collapse which has display: block !important. Disabling that will result in the collapse button not appearing... so I guess it's a lot of classes that needs to be redefined, not just collapse
– Daniele Ricci
Jan 22...
How to mark-up phone numbers?
... Working on Seamonkey 2.20 on Mac 10.8 put below the <body <?php body_class(); ?>> code on a wordpress theme's header.php file.
– om01
Sep 6 '13 at 0:33
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Where is the C auto keyword used?
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In C auto is a keyword that indicates a variable is local to a block. Since that's the default for block-scoped variables, it's unnecessary and very rarely used (I don't think I've ever seen it use outside of examples in texts that discuss the keyword). I'd be interested if someone coul...
Auto detect mobile browser (via user-agent?) [closed]
...ome type of .htaccess command - instead of using a scripting language like PHP?
– TeddyTom
Jun 17 '09 at 4:54
any idea...
How do I declare a 2d array in C++ using new?
...a light weight solution. An alternative approach would be to use one large block of memory:
int *ary = new int[sizeX*sizeY];
// ary[i][j] is then rewritten as
ary[i*sizeY+j]
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“CAUTION: provisional headers are shown” in Chrome debugger
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The resource could be being blocked by an extension (AdBlock in my case).
The message is there because the request to retrieve that resource was never made, so the headers being shown are not the real thing. As explained in the issue you referenced, th...
get current url in twig template?
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@GateKiller This made my Functional Test Fail: Uncaught PHP Exception PHPUnit_Framework_Error_Notice: "Undefined index: REQUEST_URI"
– Robin
Aug 15 '14 at 10:18
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