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Why aren't variables declared in “try” in scope in “catch” or “finally”?

...Reader sr, [1] class [mscorlib]System.Exception ex) IL_0000: ldnull IL_0001: stloc.0 .try { .try { IL_0002: ldsfld string UsingTest.Class1::path IL_0007: newobj instance void [mscorlib]System.IO.StreamReader::.cto...
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Pretty print in MongoDB shell as default

...y, everything is output to a single line and it's difficult to read, especially with nested arrays and documents. 8 Answers...
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What's wrong with nullable columns in composite primary keys?

... Primary keys are for uniquely identifying rows. This is done by comparing all parts of a key to the input. Per definition, NULL cannot be part of a successful comparison. Even a comparison to itself (NULL = NULL) will fail. This means a key containing NULL would not work. Additonally, NULL is al...
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SQLite in Android How to update a specific row

... It's actually a walk-around. The Third param of db.update() should be the where clause only, and the fourth is the actual condition values. In this case, the line should be: myDB.update(TableName, cv, "_id=?", new String[]{id}). SQLit...
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Plotting time in Python with Matplotlib

...erstand why this is the 5th question I've encountered where no one has actually TRIED using a scatter plot - it doesn't work. Type Error - invalid type promotion. – dwanderson Oct 5 '16 at 16:21 ...
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Program only crashes as release build — how to debug?

I've got a "Schroedinger's Cat" type of problem here -- my program (actually the test suite for my program, but a program nonetheless) is crashing, but only when built in release mode, and only when launched from the command line. Through caveman debugging (ie, nasty printf() messages all over the ...
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How do I enable EF migrations for multiple contexts to separate databases?

... The 2nd call to Enable-Migrations is failing because the Configuration.cs file already exists. If you rename that class and file, you should be able to run that 2nd Enable-Migrations, which will create another Configuration.cs. You ...
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Can't find Request.GetOwinContext

...uget package (The nuget package name is Microsoft.AspNet.WebApi.Owin) Install-Package Microsoft.AspNet.WebApi.Owin See msdn here: http://msdn.microsoft.com/en-us/library/system.net.http.owinhttprequestmessageextensions.getowincontext(v=vs.118).aspx Nuget package here: https://www.nuget.org/packa...
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C99 stdint.h header and MS Visual Studio

... Without this header I have no definitions for useful types such as uint32_t, etc. 7 Answers ...
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Python: changing value in a tuple

...'m new to python so this question might be a little basic. I have a tuple called values which contains the following: 17 ...