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C# Linq Group By on multiple columns [duplicate]
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Ignoring time zones altogether in Rails and PostgreSQL
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Fixed point vs Floating point number
...lled the exponent). So a floating point number that took up 10 digits with 2 digits reserved for the exponent might represent a largest value of 9.9999999e+50 and a smallest non-zero value of 0.0000001e-49.
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ImportError: no module named win32api
I am using Python 2.7 and I want to use pywin32-214 on Windows 7 . I installed pywin32-214 by using the msi installer. But when I import win32api in my Python script, it throws the error:
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How to log SQL statements in Grails
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edited Jan 2 '18 at 15:32
answered Apr 2 '10 at 19:11
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Direct casting vs 'as' operator?
... Otherwise, assigns o to s, even if o is null.
string s = o as string; // 2
Assigns null to s if o is not a string or if o is null. For this reason, you cannot use it with value types (the operator could never return null in that case). Otherwise, assigns o to s.
string s = o.ToString(); // 3
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How can I switch themes in Visual Studio 2012
The Visual Studio 2012 offers two themes, Light and Dark. I want to switch the theme to Dark, but I'm not able to find any menus or options to do that.
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catch all unhandled exceptions in ASP.NET Web Api
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This is now possible with WebAPI 2.1 (see the What's New):
Create one or more implementations of IExceptionLogger. For example:
public class TraceExceptionLogger : ExceptionLogger
{
public override void Log(ExceptionLoggerContext context)
{
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How to use a RELATIVE path with AuthUserFile in htaccess?
...ork around that limitation.
We're using IfDefine together with an apache2 command line parameter:
.htaccess (suitable for both development and live systems):
<IfDefine !development>
AuthType Basic
AuthName "Say the secret word"
AuthUserFile /var/www/hostname/.htpasswd
Require vali...
Rails: how do I validate that something is a boolean?
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Since Rails 3, you can do:
validates :field, inclusion: { in: [ true, false ] }
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