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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...
LINQ to Entities does not recognize the method
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edited Aug 31 '11 at 15:53
answered Aug 31 '11 at 15:43
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Difference between Lookup() and Dictionary(Of list())
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edited May 8 '14 at 17:43
answered Nov 13 '12 at 14:33
Jo...
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...
Update a dataframe in pandas while iterating row by row
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rakkerakke
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Swift: #warning equivalent
...ing-todo-as-warning-in-swift-xcode-project/
http://jeffreysambells.com/2013/01/31/generate-xcode-warnings-from-todo-comments
EDIT: 18/11/14
@david-h raised a good point in his comment. If you wanted to only raise these warnings in a specific build configuration, you could do the following:
if [ ...
Django “xxxxxx Object” display customization in admin action sidebar
... def __unicode__(self):
return 'Policy: ' + self.name
On Python 3 you need to use __str__:
def __str__(self):
return 'Policy: ' + self.name
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