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How do I provide custom cast support for my class?

...ou want users to have to cast it or whether you want it to happen automagically. Generally, one direction will always work, that's where you use implicit, and the other direction can sometimes fail, that's where you use explicit. The syntax is like this: public static implicit operator dbInt64(Byt...
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Difference between ActionBarSherlock and ActionBar Compatibility

...t a native one. --EDIT-- It appears things have changed and there is actually no difference between ActionBarSherlock and the Action Bar Compatibility anymore. Please read the comments below for details. --EDIT-- After having used both now, I can say that I actually prefer ActionBarSherlock to A...
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Use different Python version with virtualenv

... system currently running with python 2.5.4. I got virtualenv properly installed, everything is working fine. Is there a possibility that I can use a virtualenv with a different version of Python? ...
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How to import module when module name has a '-' dash or hyphen in it?

...appens with sys.modules, you don't need it to import itself), just getting all of the file's globals into your own scope, you can use execfile # contents of foo-bar.py baz = 'quux' >>> execfile('foo-bar.py') >>> baz 'quux' >>> ...
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Django REST framework: non-model serializer

...urn JSON and XML to the API consumer. You can also enable YAML by just installing the required python module. Django-rest-framework will output any basic object like dict, list and tuple without any extra work on your part. So basically you only have to create the function or class that takes in ar...
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Email Address Validation in Android on EditText [duplicate]

... 20 one line solution return !TextUtils.isEmpty(target) && Patterns.EMAIL_ADDRESS.matcher(target).matches(); – Ma...
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sizeof single struct member in C

... char text[member_size(Parent, text)]; int used; } Child; I'm actually a bit surprised that sizeof((type *)0)->member) is even allowed as a constant expression. Cool stuff. share | impr...
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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]

I use Rails 3.0.20 and ruby 1.8.7 (2011-06-30 patchlevel 352) 4 Answers 4 ...
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Why does C# forbid generic attribute types?

...pful information either, although it does provide an example of what's not allowed. My copy of the annotated C# 3 spec should arrive tomorrow... I'll see if that gives any more information. Anyway, it's definitely a language decision rather than a runtime one. EDIT: Answer from Eric Lippert (parap...
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How to get a Static property with Reflection

...so the key for me was to use the .FlattenHierarchy BindingFlag. I don't really know why I just added it on a hunch and it started working. So the final solution that allows me to get Public Instance or Static Properties is: obj.GetType.GetProperty(propName, Reflection.BindingFlags.Public _ Or R...