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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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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 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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Why are static variables considered evil?

I am a Java programmer who is new to the corporate world. Recently I've developed an application using Groovy and Java. All through the code I wrote used quite a good number of statics. I was asked by the senior technical lot to cut down on the number of statics used. I've googled about the same, ...
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How to remove focus without setting focus to another control?

I like my UIs to be intuitive; each screen should naturally and unobtrusively guide the user on to the next step in the app. Barring that, I strive to make things as confusing and confounding as possible. ...
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How to escape JSON string?

Are there any classes/functions available to be used for easy JSON escaping? I'd rather not have to write my own. 14 Answer...
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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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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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C++ valarray vs. vector

I like vectors a lot. They're nifty and fast. But I know this thing called a valarray exists. Why would I use a valarray instead of a vector? I know valarrays have some syntactic sugar, but other than that, when are they useful? ...