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How to put a UserControl into Visual Studio toolBox

I made a usercontrol in my project, and after building project, I need to put it in my toolbox, and use it as a common control. but i can't. the UserControl is in my project namespace, and I tried Choose Item in right click menu, but I didn't find a way to add it. ...
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Grant **all** privileges on database

...Feb 16 '11 at 12:45 diagonalbatmandiagonalbatman 15.8k33 gold badges2727 silver badges3131 bronze badges ...
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Reading a string with scanf

...("%s", string) is equivalent to scanf("%s", &string[0]). On the other hand, scanf("%s", &string) passes a pointer-to-char[256], but it points to the same place. Then scanf, when processing the tail of its argument list, will try to pull out a char *. That's the Right Thing when you've passe...
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Paperclip::Errors::MissingRequiredValidatorError with Rails 4

...ays "MissingRequiredValidatorError" I thought that by updating post_params and giving it :image it would be fine, as both create and update use post_params ...
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SQL Case Sensitive String Compare

... Yes, the Standard approach is to use a case-insensitive collation, though the collations themselves are vendor-specific. Is yours SQL Server syntax? – onedaywhen Oct 20 '10 at 9:24 ...
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Python progression path - From apprentice to guru

I've been learning, working, and playing with Python for a year and a half now. As a biologist slowly making the turn to bio-informatics, this language has been at the very core of all the major contributions I have made in the lab. I more or less fell in love with the way Python permits me to expre...
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ASP.NET MVC - passing parameters to the controller

...the parameter is any kind of number. You can modify the regex as you like, and even limit the number of decimals, like this: new { firstItem = @"\d{4}" } - now it can only be 4 numbers long. Edit: example of fully modified MapRoute: jsfiddle.net/HJRgT – KristianB ...
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If unit testing is so great, why aren't more companies doing it? [closed]

...icklers for it back then -- I have no idea what our code coverage was like and I was writing most of the unit tests. Since then I've run into some companies that do lots of testing, but it's chair testing: relies on a person being there, has low repeatibility and low chance of catching bugs. The oth...
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Random float number generation

How do I generate random floats in C++? 14 Answers 14 ...
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What is the effect of encoding an image in base64?

...tring its becoming 500kb.Its not 37%.I have compressed a 5mb image to 70kb and then convert that compressed image to string that become 500kb. – KJEjava48 Apr 19 '17 at 6:05 ...