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Multi-key dictionary in c#? [duplicate]

I know there isn't one in the BCL but can anyone point me to a good opensource one? 16 Answers ...
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Cannot set boolean values in LocalStorage?

I noticed that I cannot set boolean values in localStorage ? 8 Answers 8 ...
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Read binary file as string in Ruby

I need an easy way to take a tar file and convert it into a string (and vice versa). Is there a way to do this in Ruby? My best attempt was this: ...
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How do I disable the “Press ENTER or type command to continue” prompt in Vim?

Is there any way to disable the "Press ENTER or type command to continue" prompt that appears after executing an external command? ...
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Are Mutexes needed in javascript?

I have seen this link: Implementing Mutual Exclusion in JavaScript . On the other hand, I have read that there are no threads in javascript, but what exactly does that mean? ...
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Conversion of System.Array to List

... impossible. But in the same dream, someone from SO told me otherwise. Hence I would like to know if it it possible to convert System.Array to List ...
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What's wrong with nullable columns in composite primary keys?

ORACLE does not permit NULL values in any of the columns that comprise a primary key. It appears that the same is true of most other "enterprise-level" systems. ...
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What are the relative strengths and weaknesses of Git, Mercurial, and Bazaar? [closed]

What do folks here see as the relative strengths and weaknesses of Git, Mercurial, and Bazaar? 16 Answers ...
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Postgres DB Size Command

What is the command to find the size of all the databases? 10 Answers 10 ...
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What are rvalues, lvalues, xvalues, glvalues, and prvalues?

In C++03, an expression is either an rvalue or an lvalue . 11 Answers 11 ...