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Entity Framework rollback and remove bad migration
I'm using EF 6.0 for my project in C# with manual migrations and updates. I have about 5 migrations on the database, but I realised that the last migration was bad and I don't want it. I know that I can rollback to a previous migration, but when I add a new (fixed) migration and run Update-Database,...
Most efficient way to check for DBNull and then assign to a variable?
...to be the most efficient.
I'd suggest something along the lines of:
int? myValue = (Convert.IsDBNull(row["column"]) ? null : (int?) Convert.ToInt32(row["column"]));
And yes, the compiler should cache it for you.
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How do I make background-size work in IE?
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Thanks to this post, my full css for cross browser happiness is:
<style>
.backgroundpic {
background-image: url('img/home.jpg');
background-size: cover;
filter: progid:DXImageTransform.Microsoft.AlphaImageLoader...
Convert light frequency to RGB?
...l good answers, when I tried to implement such conversion functionality in my application I was not satisfied with the algorithms already listed here and did my own research, which gave me some good result. So I'm going to post a new answer.
After some researchs I came across this paper, Simple Ana...
Automating “enter” keypresses for bash script generating ssh keys
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Try:
ssh-keygen -t rsa -N "" -f my.key
-N "" tells it to use an empty passphrase (the same as two of the enters in an interactive script)
-f my.key tells it to store the key into my.key (change as you see fit).
The whole thing runs without you needing t...
Make install, but not to default directories?
...s stored inside. I don't know why this happends, but I certainly dont want my machine paths on binaries that I ship to other users.
– Erik Aigner
Jan 20 at 18:43
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How do I output text without a newline in PowerShell?
I want my PowerShell script to print something like this:
18 Answers
18
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How do I get an element to scroll into view, using jQuery?
... element with the top/left of the viewport (or as close as possible).
$("#myImage")[0].scrollIntoView();
On supported browsers, you can provide options:
$("#myImage")[0].scrollIntoView({
behavior: "smooth", // or "auto" or "instant"
block: "start" // or "end"
});
Alternatively, if all ...
append to url and refresh page
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What if your url is: www.mysite.com ...then won't it make the url: www.mysite.com&param=42 which would need the "?" character since its the only parameter in the url. I like @Shlomi Komemi answer as it covers those 2 main scenarios.
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Change the color of glyphicons to blue in some- but not at all places using Bootstrap 2
I am using the Bootstrap framework for my UI. I want to change the color of my glyphicons to blue, but not in all places. In some places it should use the default color.
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