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How do I get a TextBox to only accept numeric input in WPF?
...t);
I use a simple regex in IsTextAllowed method to see if I should allow what they've typed. In my case I only want to allow numbers, dots and dashes.
private static readonly Regex _regex = new Regex("[^0-9.-]+"); //regex that matches disallowed text
private static bool IsTextAllowed(string text)...
Why is a pure virtual function initialized by 0?
... @just somebody - It includes the standard citation which states what's the syntax of pure virtual function declaration and that the syntax uses pure-specifier = 0 What else would you like to know? It would be the same as asking why function body is wrapped with {} The answer would be, bec...
Python: Bind an Unbound Method?
...I'm not even sure if supplying it does anything, as it makes no difference what type I supply as the second parameter regardless of what the first parameter is an instance of. So bind = lambda instance, func, asname=None: setattr(instance, asname or func.__name__, func.__get__(instance)) should do t...
Where's the difference between setObject:forKey: and setValue:forKey: in NSMutableDictionary?
...r case an id. One of them seems to retain the object, and the other don't. What else? Which one is for what case?
4 Answers...
Why use bzero over memset?
... @AaronNewton, you should add that to Michael’s answer since it confirms what he said.
– Synetech
Sep 11 '15 at 17:17
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Getting started with Haskell
...exercises have been a good way for me to go. But since I don't really know what Haskell is capable of and because there are many new concepts to utilize, I haven't known where to start.
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Use grep --exclude/--include syntax to not grep through certain files
...would only search files named foo.cpp and bar.h, which is quite likely not what you wanted.
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Printing tuple with string formatting in Python
...w always you str.format anyway, blindly. Nevermind that, I'm interested in what the full qualifier is, because the simple {0} isn't the full qualifier, but merely a position indicator. For an int, what I call the full qualifier would be {0:d} (or {3:d} for example, if the int to be printed occurs in...
Creating a config file in PHP
I want to create a config file for my PHP project, but I'm not sure what the best way to do this is.
10 Answers
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socket.error: [Errno 48] Address already in use
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What url should I have in browser to see if it is working? I'm running on a different port as you sugested
– irm
Sep 28 '13 at 21:02
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