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Entity framework code-first null foreign key
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169
You must make your foreign key nullable:
public class User
{
public int Id { get; set; }
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Add & delete view from Layout
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answered Sep 27 '10 at 16:33
Nathan SchwermannNathan Schwermann
29.8k1515 gold badges7777 silver badges8787 bronze badges
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Add default value of datetime field in SQL Server to a timestamp
...traint.
– Martin Smith
Feb 3 '11 at 16:02
1
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Android: Rotate image in imageview by an angle
...while rotating?
– Ivan Morgillo
Oct 16 '14 at 12:25
13
@IvanMorgillo You can have a look at ViewP...
How do you calculate log base 2 in Java for integers?
...int log = 0;
if( ( bits & 0xffff0000 ) != 0 ) { bits >>>= 16; log = 16; }
if( bits >= 256 ) { bits >>>= 8; log += 8; }
if( bits >= 16 ) { bits >>>= 4; log += 4; }
if( bits >= 4 ) { bits >>>= 2; log += 2; }
return log + ( bits &g...
str performance in python
...()
0.25641703605651855
>>> Timer('"%s" % x', 'x=100').timeit()
0.2169809341430664
Do note that str is still slightly slower, as @DietrichEpp said, this is because str involves lookup and function call operations, while % compiles to a single immediate bytecode:
>>> dis.dis(lambd...
Parse query string in JavaScript [duplicate]
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edited Jun 16 '17 at 19:02
DanBrianWhite
4744 bronze badges
answered Jan 19 '10 at 5:34
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Why does IE9 switch to compatibility mode on my website?
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answered Sep 16 '10 at 12:25
bobincebobince
484k9999 gold badges611611 silver badges797797 bronze badges
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How to scroll to top of page with JavaScript/jQuery?
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– Niet the Dark Absol
Mar 13 '13 at 16:51
To make this work on my IE/Chrome/FF cross-browsers, I must combine Niet Dar...
How to check if an object is an array?
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edited Nov 20 '14 at 21:16
answered Jan 6 '14 at 18:11
Fe...