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Is it possible to Pivot data using LINQ?
...).Sum(c => c.Qty),
March = g.Where(c => c.OrderDate.Month == 3).Sum(c => c.Qty)
});
GroupBy in Linq does not work the same as SQL. In SQL, you get the key and aggregates (row/column shape). In Linq, you get the key and any elements as children of the key (hierarchical shape)...
How can I get the full/absolute URL (with domain) in Django?
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530
Use handy request.build_absolute_uri() method on request, pass it the relative url and it'll gi...
ASP.NET MVC Conditional validation
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There's a much better way to add conditional validation rules in MVC3; have your model inherit IValidatableObject and implement the Validate method:
public class Person : IValidatableObject
{
public string Name { get; set; }
public bool IsSenior { get; set; }
public Senior Senior...
find: missing argument to -exec
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344
A -exec command must be terminated with a ; (so you usually need to type \; or ';' to avoid in...
Getting GDB to save a list of breakpoints
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As of GDB 7.2 (2011-08-23) you can now use the save breakpoints command.
save breakpoints <filename>
Save all current breakpoint definitions to a file suitable for use
in a later debugging session. To read the saved breakpoint
definiti...
Changing capitalization of filenames in Git
...h, 2014), a git mv will just work on a case insensitive OS.
See commit baa37bf by David Turner (dturner-tw).
mv: allow renaming to fix case on case insensitive filesystems
"git mv hello.txt Hello.txt" on a case insensitive filesystem always triggers "destination already exists" error, because the...
Update a dataframe in pandas while iterating row by row
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rakkerakke
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How to get JSON response from http.Get
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edited Jan 30 at 8:43
Barlas Apaydin
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GCM with PHP (Google Cloud Messaging)
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13 Answers
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Detect permission of camera in iOS
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231
Check the AVAuthorizationStatus and handle the cases properly.
NSString *mediaType = AVMediaTy...