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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 in the attribu...
Explain “claims-based authentication” to a 5-year-old
...care how the authentication occurred because of the trust. The bartender knows nothing about you except your date of birth because that's all the bartender needs to know. Now, the bartender could store information that they think is important to them, like your favorite drink, but the government d...
Most efficient method to groupby on an array of objects
...ailed to understand how in the world does it work starting from ...result. Now I can't sleep because of that.
– user3307073
Mar 29 '19 at 9:26
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How to instantiate a File object in JavaScript?
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Now you can!
var parts = [
new Blob(['you construct a file...'], {type: 'text/plain'}),
' Same way as you do with blob',
new Uint16Array([33])
];
// Construct a file
var file = new File(parts, 'sample.txt',...
Mac OSX Lion DNS lookup order [closed]
...I discovered this when I noticed some ads that I had never seen before on Snow Leopard because I had redirected the ad domains to 127.0.0.1. I fired up wireshark and noticed AAAA (IPv6 DNS records) queries following the IPv4 A queries (IPv4). The ad servers indeed have IPv6 addesses and were able to...
Docker and securing passwords
...t of docker inspect is probably pretty low on your list of things that can now go wrong. This particular detail seems like acceptable risk to me.
– GrandOpener
Jun 1 '17 at 17:42
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Side-by-side plots with ggplot2
... @Jim thank you for pointing that out. I have revised my answer. Let me know if any questions remain.
– David LeBauer
Sep 6 '13 at 16:28
1
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preferredStatusBarStyle isn't called
.... Either delete that line or set it to YES (which I believe is the default now for iOS 7?)
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Is there any way to ignore INSTALL_FAILED_VERSION_DOWNGRADE on application install with the Android
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And it seems to be documented now! Just not that you have to use -r -d, -rd will not work
– plaisthos
Jan 8 '16 at 12:44
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How can I install MacVim on OS X?
...tall vim && brew install macvim
Step 4. Run brew link macvim
You now have the latest versions of vim and macvim managed by brew. Run brew update && brew upgrade every once in a while to upgrade them.
This includes the installation of the CLI mvim and the mac application (which bot...