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How do I use IValidatableObject?

... Prop1 = 1, Prop2 = 2 }; bool validateAllProperties = false; var results = new List<ValidationResult>(); bool isValid = Validator.TryValidateObject( toValidate, new ValidationContext(toValidate, null, null), ...
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Best explanation for languages without null

... that every reference type gets this extra state in its space that is typically undesired. A string variable could be any sequence of characters, or it could be this crazy extra null value that doesn't map into my problem domain. A Triangle object has three Points, which themselves have X and Y va...
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How to use Oracle ORDER BY and ROWNUM correctly?

...return "1" in the last column. You would need to list the columns individually to avoid this. share | improve this answer | follow | ...
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How to emulate GPS location in the Android Emulator?

...latitude, longitude and if needed altitude on the device that is passed to all programs using the gps location provider. See the link above for further instructions. The specific command to run in the console is geo fix <longitude value> <latitude value> I found this site useful for...
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What's the difference between process.cwd() vs __dirname?

... Does this mean that process.cwd() is synonym to . for all cases except for require()? – Alexander Gonchiy Aug 29 '15 at 9:44 11 ...
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Adding a Method to an Existing Object Instance

...that instance will be passed as the first argument whenever the method is called. Callables that are attributes of a class (as opposed to an instance) are still unbound, though, so you can modify the class definition whenever you want: >>> def fooFighters( self ): ... print "fooFighters...
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Deleting a resource using http DELETE

...DELETE as an idempotent operation requires the server to keep track of all deleted resources. Otherwise, it can return a 404 (Not Found). share | improve this answer | ...
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Is module __file__ attribute absolute or relative?

...a file. The __file__ attribute is not present for C modules that are statically linked into the interpreter; for extension modules loaded dynamically from a shared library, it is the pathname of the shared library file. From the mailing list thread linked by @kindall in a comment to the question: ...
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How to get certain commit from GitHub project

I need to download the Facebook API from GitHub . Normally, I just click on the 'Downloads" tab to download the latest source code. In this case, I need an older commit: 91f256424531030a454548693c3a6ca49ca3f35a , but I have no idea how to get the entire project from that commit... ...
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Can I install Python windows packages into virtualenvs?

Virtualenv is great: it lets me keep a number of distinct Python installations so that different projects' dependencies aren't all thrown together into a common pile. ...