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MySQL Error 1215: Cannot add foreign key constraint
...ying to use as a foreign key are primary keys in their own tables. I have done both of these things, if I'm not mistaken. Any other help you guys could offer?
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Is the C# static constructor thread safe?
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Static constructors are guaranteed to be run only once per application domain, before any instances of a class are created or any static members are accessed. https://docs.microsoft.com/en-us/dotnet/csharp/programming-guide/classes-and-structs/static-constructors
The implementation shown is thr...
How to output something in PowerShell
...mmand pipeline it calls the .toString() method and outputs the result to STDOUT (by default). A thing of beauty.
The other Write-* commands are specific to outputting the text to their associated streams, and have their place as such.
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Is it possible dynamically to add String to String.xml in Android?
...o format your strings using String.format(String, Object...), then you can do so by putting your format arguments in the string resource. For example, with the following resource:
<string name="welcome_messages">Hello, %1$s! You have %2$d new messages.</string>
In this example, th...
CSS vertical alignment text inside li
...group", and "inherit" is not supported in IE7 and earlier. IE8 requires a !DOCTYPE. IE9 supports the values.
– AK4668
Dec 25 '11 at 5:39
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Batch script: how to check for admin rights
How do I check if the current batch script has admin rights?
27 Answers
27
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How to shut down the computer from C#
What's the best way to shut down the computer from a C# program?
16 Answers
16
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How to force LINQ Sum() to return 0 while source collection is empty
Basically when I do the following query, if no leads were matched the following query throws an exception. In that case I'd prefer to have the sum equalize 0 rather than an exception being thrown.
Would this be possible in the query itself - I mean rather than storing the query and checking query.A...
Zoom in on a point (using scale and translate)
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offsetY = -(zoomPointY * scalechange);
So really you can just pan over down and to the right when you zoom in, by a factor of how much you zoomed in, relative to the point you zoomed at.
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How to determine whether a Pandas Column contains a particular value
...ere is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data frame only containing entries matc...