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The relationship could not be changed because one or more of the foreign-key properties is non-nulla
I am getting this error when I GetById() on an entity and then set the collection of child entities to my new list which comes from the MVC view.
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Are class names in CSS selectors case sensitive?
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CSS selectors are generally case-insensitive; this includes class and ID selectors.
But HTML class names are case-sensitive (see the attribute definition), and that's causing a mismatch in your second example. This has not changed in HTML5.1
This is because the case-sensitivity of selecto...
Random Gaussian Variables
Is there a class in the standard library of .NET that gives me the functionality to create random variables that follow Gaussian distribution?
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What is thread contention?
...he most obvious example of contention is on a lock. If thread A has a lock and thread B wants to acquire that same lock, thread B will have to wait until thread A releases the lock.
Now, this is platform-specific, but the thread may experience slowdowns even if it never has to wait for the other th...
Difference between jQTouch and jQuery mobile
... jQuery Mobile is looking to support all mobile devices; that is my understanding
some good info here
http://jquerymobile.com/strategy/
and here
http://news.ycombinator.com/item?id=1602169
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How to detect the OS from a Bash script?
I would like to keep my .bashrc and .bash_login files in version control so that I can use them between all the computers I use. The problem is I have some OS specific aliases so I was looking for a way to determine if the script is running on Mac OS X, Linux or Cygwin .
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On - window.location.hash - Change?
I am using Ajax and hash for navigation.
13 Answers
13
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Callback functions in C++
In C++, when and how do you use a callback function?
10 Answers
10
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Is it possible to simulate key press events programmatically?
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A non-jquery version that works in both webkit and gecko:
var keyboardEvent = document.createEvent("KeyboardEvent");
var initMethod = typeof keyboardEvent.initKeyboardEvent !== 'undefined' ? "initKeyboardEvent" : "initKeyEvent";
keyboardEvent[initMethod](
"keydown", /...
Can anyone explain this strange behavior with signed floats in C#?
...When at least one field is not 8 bytes wide, CanCompareBits returns false, and the code proceeds to use reflection to loop over the fields and call Equals for each value, which correctly treats -0.0 as equal to 0.0.
Here is the source for CanCompareBits from SSCLI:
FCIMPL1(FC_BOOL_RET, ValueTypeHe...