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Unique Key constraints for multiple columns in Entity Framework
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With Entity Framework 6.1, you can now do this:
[Index("IX_FirstAndSecond", 1, IsUnique = true)]
public int FirstColumn { get; set; }
[Index("IX_FirstAndSecond", 2, IsUnique = true)]
public int SecondColumn { get; set; }
The second parameter i...
How to insert element into arrays at specific position?
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edited Dec 12 '18 at 11:16
outis
66.3k1717 gold badges125125 silver badges191191 bronze badges
answered...
how to stop browser back button using javascript
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162
There are numerous reasons why disabling the back button will not really work. Your best bet is...
Check image width and height before upload with Javascript
... };
img.src = objectUrl;
}
});
Demo: http://jsfiddle.net/4N6D9/1/
I take it you realize this is only supported in a few browsers. Mostly firefox and chrome, could be opera as well by now.
P.S. The URL.createObjectURL() method has been removed from the MediaStream interface. This me...
How do I list all files of a directory?
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A bit simpler: (_, _, filenames) = walk(mypath).next() (if you are confident that the walk will return at least one value, which it should.)
– misterbee
Jul 14 '13 at 20:56
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Plot two histograms on single chart with matplotlib
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edited May 23 '14 at 6:35
answered Jul 29 '11 at 13:33
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What does the JSLint error 'body of a for in should be wrapped in an if statement' mean?
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Gabriel Nahmias
69022 gold badges1313 silver badges1919 bronze badges
answered Dec 26 '09 at 11:17
vavavava
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Java's L number (long) specification
...utomatically reads it as an integer, which is why when you type in (long) 6000000000 (not in integer's range) it will complain that 6000000000 is not an integer. To correct this, I had to specify 6000000000L . I just learned about this specification.
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How to install therubyracer gem on 10.10 Yosemite?
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68
git clone https://github.com/cowboyd/libv8.git
cd libv8
bundle install
bundle exec rake clean b...
Are tuples more efficient than lists in Python?
... 1 (1)
3 LOAD_CONST 2 (2)
6 LOAD_CONST 3 (3)
9 LOAD_CONST 4 (4)
12 LOAD_CONST 5 (5)
15 BUILD_LIST 5
18 STORE_FAST 0 (x)
3 ...