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Unknown Column In Where Clause
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SQL is evaluated backwards, from right to left. So the where clause is parsed and evaluate prior to the select clause. Because of this the aliasing of u_name to user_name has not yet occurred.
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Which Radio button in the group is checked?
Using WinForms; Is there a better way to find the checked RadioButton for a group? It seems to me that the code below should not be necessary. When you check a different RadioButton then it knows which one to uncheck… so it should know which is checked. How do I pull that information without doing...
Get decimal portion of a number with JavaScript
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In a world where 0.2999999999999998 is equal to 0.3 this may be acceptable. To me it isn't... Hence, to solve this challenge I'd refrain from using Math.* or % operations.
– Marcel Stör
Apr 2 '14 at 14:04
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How to programmatically get iOS status bar height
...tly the status bar (with the time, battery, and network connection) at the top of the iPhone/iPad is 20 pixels for non-retina screens and 40 pixels for retina screens, but to future proof my app I would like to be able to determine this without hard coding values. Is it possible to figure out the he...
Will code in a Finally statement fire if I return a value in a Try block?
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@Edi: Um, I don't see what background threads have to do with it. Basically, unless the whole process aborts, the finally block will execute.
– Jon Skeet
Sep 22 '16 at 13:57
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How to edit one specific row in Microsoft SQL Server Management Studio 2008?
In Microsoft SQL Server Management Studio 2008, is there a secret to be able to edit one row based on a key?
3 Answers
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How to check if variable's type matches Type stored in a variable
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The other answers all contain significant omissions.
The is operator does not check if the runtime type of the operand is exactly the given type; rather, it checks to see if the runtime type is compatible with the given type:
class Animal {}
class Tiger : Animal {}
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object x = new Tige...
Check if a div exists with jquery [duplicate]
...case of testing the length of a collection, for positive non-zero it seems to me that .length defeats .length > 0, so it's kind of a double-win. Still, thanks for pointing this out.
– karim79
Nov 27 '13 at 23:44
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How can I display an image from a file in Jupyter Notebook?
I would like to use an IPython notebook as a way to interactively analyze some genome charts I am making with Biopython's GenomeDiagram module. While there is extensive documentation on how to use matplotlib to get graphs inline in IPython notebook, GenomeDiagram uses the ReportLab toolkit whi...
How to print instances of a class using print()?
I am learning the ropes in Python. When I try to print an object of class Foobar using the print() function, I get an output like this:
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