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Update Row if it Exists Else Insert Logic with Entity Framework

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Why does C++ need a separate header file?

...ource for the definitions. To avoid marking everything "inline". If your more general question is, "why isn't C++ identical to Java?", then I have to ask, "why are you writing C++ instead of Java?" ;-p More seriously, though, the reason is that the C++ compiler can't just reach into another trans...
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How to detect if a function is called as constructor?

... can do. (*) "instance of" is an inaccurate term but is close enough, and more concise than "object that has been created by calling x as a constructor" share | improve this answer | ...
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How to TryParse for Enum value?

...e: As of .Net 4 Enum.TryParse is available and works without extra coding. More information is available from MSDN: msdn.microsoft.com/library/vstudio/dd991317%28v=vs.100%29.aspx – Christian Sep 19 '13 at 9:36 ...
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Using the field of an object as a generic Dictionary key

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How to wait in bash for several subprocesses to finish and return exit code !=0 when any subprocess

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What is copy-on-write?

... used for... however, in some situations, this type of strategy results in more optimized results. – Andrew Flanagan Mar 10 '09 at 4:33 3 ...
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Why is 'this' a pointer and not a reference?

... often useful for an object to get a reference to itself. I'd say that's a more common usage. Anyway, the main reason is like you said, references didn't exist when they created the 'this' pointer. – jalf Mar 14 '09 at 14:42 ...
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What is the difference between a directory and a folder?

...s. ... If one is referring to a container of documents, the term folder is more appropriate. The term directory refers to the way a structured list of document files and folders is stored on the computer. The distinction can be due to the way a directory is accessed; on Unix systems, /usr/bin/ is us...
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Is there a naming convention for Django apps

...here a preferred naming convention for creating a Django app consisting of more than one word? For instance, which of the following is preferred? ...