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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
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slightly neater and more performant: if (db.As.AsNoTracking().Any(x => x.aID == aID && x.UserID==userID))
– Brent
Jul 8 '14 at 10:40
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How to trigger jQuery change event in code
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The parameterless form of the change() method triggers a change event. You can write something like:
$(document).ready(function() {
$("#yourInitialElementID").change(function() {
// Do something here...
$(".yourDropDownCla...
Multiple Inheritance in C#
... It does have it's caveats, it isn't CLS compliant for example. For more information see this (2004) article blogs.msdn.com/b/csharpfaq/archive/2004/03/07/…
– dvdvorle
Mar 1 '12 at 8:45
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Handling specific errors in JavaScript (think exceptions)
...Ecmascript standard, not even ES6, but they also explain how to make it conform, though it's not as succint. Basically same as above, but using instanceOf. Check here
– Bart
Oct 20 '15 at 8:58
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What is the difference between char * const and const char *?
...stant char (so nothing about it can be changed).
Note:
The following two forms are equivalent:
const char *
and
char const *
The exact reason for this is described in the C++ standard, but it's important to note and avoid the confusion. I know several coding standards that prefer:
char cons...
Dump a mysql database to a plaintext (CSV) backup from the command line
I'd like to avoid mysqldump since that outputs in a form that is only convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql s...
String concatenation in MySQL
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Center image horizontally within a div
...* moves left side of image/element to center of parent element */
transform: translate(-50%); /* centers image/element on "left: 50%" position */
}
You can then apply the CSS class you created to your tag as follows:
HTML
<img class="center" src="image.jpg" />
You can also inline th...
Int to Char in C#
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@nykwil - That is misinformation. Console.WriteLine((char)49 == '1'); Will give True. As will char c = (char)49; string s = "1two3"; Console.WriteLine(c == s[0]); Using this cast is perfectly fine. Your explanation does not provide a valid exam...
Using PropertyInfo to find out the property type
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