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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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How do I record audio on iPhone with AVAudioRecorder?

...ant to record audio in my application, but I want to use AVAudioRecorder and not the older way of recording like the example SpeakHere shows. There are not any examples of how to best do this in the iPhone Dev Center and only reference to the classes. I am a newbie at iPhone development, so I a...
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Hidden Features of C#? [closed]

... lambdas and type inference are underrated. Lambdas can have multiple statements and they double as a compatible delegate object automatically (just make sure the signature match) as in: Console.CancelKeyPress += (sender, e) =&gt...
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PHP - iterate on string characters

... hah wow. yep thats it. and of course implode can do the other direction. I'll accept this soon unless someone can show a way to do the iteration right on the sting – jon_darkstar Jan 5 '11 at 5:29 ...
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How to close Android application?

... Android has a mechanism in place to close an application safely per its documentation. In the last Activity that is exited (usually the main Activity that first came up when the application started) just place a couple of li...
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Is type=“text/css” necessary in a tag?

...nks.html#edef-LINK http://www.w3.org/TR/html40/present/styles.html Type stands for The MIME type of the style sheet. The only supported value I have ever seen is Text/CSS, which is probably why HTML5 has dropped it. I imagine they had it for earlier versions to allow future expansion possibilitie...
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LINQ Select Distinct with Anonymous Types

... Have a read through K. Scott Allen's excellent post here: And Equality for All ... Anonymous Types The short answer (and I quote): Turns out the C# compiler overrides Equals and GetHashCode for anonymous types. The implementation of the two overridden methods uses all the...
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How to prevent UINavigationBar from covering top of view in iOS 7?

...screenshots, the first showing everything in the view as it's pulled down, and the second showing all of it untouched. The search bar should begin where the navigation bar. ...
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Force line-buffering of stdout when piping to tee

...p tee output.txt (-p is for pipeline mode where unbuffer reads from stdin and passes it to the command in the rest of the arguments) share | improve this answer | follow ...
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How do I get Gridview to render THEAD?

... I found there was still problems during postback and placed the code in the databound event which addressed all scenarios. – James Westgate Jun 10 '15 at 8:12 ...