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How do I check if a string is a number (float)?

... Which, not only is ugly and slow I'd dispute both. A regex or other string parsing method would be uglier and slower. I'm not sure that anything much could be faster than the above. It calls the function and returns. Try/Catch doesn't introd...
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Entity Framework: There is already an open DataReader associated with this Command

I am using Entity Framework and occasionally i will get this error. 17 Answers 17 ...
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Predicate in Java

... someone guide me to any tutorial or conceptual explanation of Predicate and its implementation in Java? 4 Answers ...
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Passing data to Master Page in ASP.NET MVC

...utions are probably more correct but this is a nice balance between design and practicality IMHO. The master page takes a strongly typed view data class containing only information relevant to it: public class MasterViewData { public ICollection<string> Navigation { get; set; } } Each ...
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How would one write object-oriented code in C? [closed]

...esign pattern known as "object orientation"; same with garbage collection, and other such. They are so ingrained now, we tend to forget, when they were first being devised, it was in much the same way as with what we think of as design patterns today – Dexygen ...
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Xcode “The private key for is not installed on this mac - distributing”

...on Certificate by going to XCode Preferences->Accounts->View Details and then clicking the + underneath the list of signing identities. Go back to the developer website and make sure all your provisioning profiles are configured with the new certificate. (They should all be listed as Active wh...
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How to prevent XSS with HTML/PHP?

How do I prevent XSS (cross-site scripting) using just HTML and PHP? 9 Answers 9 ...
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How to match “any character” in regular expression?

... There are lots of sophisticated regex testing and development tools, but if you just want a simple test harness in Java, here's one for you to play with: String[] tests = { "AAA123", "ABCDEFGH123", "XXXX123", "XYZ123ABC", "123...
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Is there a CSS selector for text nodes?

... I'm nevertheless desperately missing ::before and ::after on text nodes. – shabunc Apr 8 '13 at 16:31 6 ...
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How can I have linebreaks in my long LaTeX equations?

...swered May 18 '10 at 21:42 Alessandro CuttinAlessandro Cuttin 3,18211 gold badge2424 silver badges3434 bronze badges ...