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What are the differences between a multidimensional array and an array of arrays in C#?

What are the differences between multidimensional arrays double[,] and array-of-arrays double[][] in C#? 9 Answers ...
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Add an already existing directory to a directory in Solution Explorer

I want to add an already existing directory to a directory in Solution Explorer, but whenever I right-click on the directory and select Add => Existing Item , I can only add individual files, but not directories. ...
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How to iterate over values of an Enum having flags?

If I have a variable holding a flags enum, can I somehow iterate over the single-bit values in that specific variable? Or do I have to use Enum.GetValues to iterate over the entire enum and check which ones are set? ...
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“ClickOnce does not support the request execution level 'requireAdministrator.'”

So I was writing an application that requires access to the registry. I had not touched any build settings, wanting to get the thing working before I added the other touches, such as a description or name. Out of the blue, I get an error that will not go away. ClickOnce does not support the requ...
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How can I disable logging while running unit tests in Python Django?

I am using a simple unit test based test runner to test my Django application. 15 Answers ...
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Can I change a private readonly field in C# using reflection?

I am wondering, since a lot of things can be done using reflection, can I change a private readonly field after the constructor completed its execution? (note: just curiosity) ...
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Should private helper methods be static if they can be static

Let's say I have a class designed to be instantiated. I have several private "helper" methods inside the class that do not require access to any of the class members, and operate solely on their arguments, returning a result. ...
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How to get a list of installed android applications and pick one to run

I asked a similar question to this earlier this week but I'm still not understanding how to get a list of all installed applications and then pick one to run. ...
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Language Books/Tutorials for popular languages

It wasn't that long ago that I was a beginning coder, trying to find good books/tutorials on languages I wanted to learn. Even still, there are times I need to pick up a language relatively quickly for a new project I am working on. The point of this post is to document some of the best tutorials ...
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Attempt to present UIViewController on UIViewController whose view is not in the window hierarchy

Just started using Xcode 4.5 and I got this error in the console: 33 Answers 33 ...