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How to change string into QString?
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This should actually be avoided in my opinion. If the version of the standard library QT was compiled with is somehow different from what you're compiling with, you're going to have trouble. In creates an unnecessary dependency between QT an...
Using LINQ to remove elements from a List
...the authors from the previous collection. Alternatively, you can use RemoveAll:
authorsList.RemoveAll(x => x.FirstName == "Bob");
If you really need to do it based on another collection, I'd use a HashSet, RemoveAll and Contains:
var setToRemove = new HashSet<Author>(authors);
authorsLi...
Validation failed for one or more entities while saving changes to SQL Server Database using Entity
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You can extract all the information from the DbEntityValidationException with the following code (you need to add the namespaces: System.Data.Entity.Validation and System.Diagnostics to your using list):
catch (DbEntityValidationException d...
How to access cookies in AngularJS?
... on if you used $cookie to store value or $cookieStore. Of course, you'd really want to use one or the other.
In addition to adding reference to the js file you need to inject ngCookies into your app definition such as:
angular.module('myApp', ['ngCookies']);
you should then be good to go.
Her...
Bring a window to the front in WPF
... simply using myWindow.Show() and sometimes it wasn't on top. I placed a call to myWindow.Activate() immediately afterwards and it worked.
– Bermo
Aug 26 '09 at 4:54
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Type safety: Unchecked cast
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Well, first of all, you're wasting memory with the new HashMap creation call. Your second line completely disregards the reference to this created hashmap, making it then available to the garbage collector. So, don't do that, use:
private ...
Use rvmrc or ruby-version file to set a project gemset with RVM?
...f your .rvmrc file contains custom shell code, continue using .rvmrc as it allows you to include any shell code.
If your only aim is to switch Ruby versions, then use .ruby-version which is supported by other Ruby version switchers such as rbenv or chruby. This file also does not require trusting a...
How to disable anchor “jump” when loading a page?
...bably don't need it if it's in jQuery's $(function() { anyway. You don't really need the location.hash, but it's nice leaving it in so browsers may not have to do anything. Also reminds you what the scrollTo is for!
– dave1010
Sep 7 '10 at 13:50
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What are the security risks of setting Access-Control-Allow-Origin?
I recently had to set Access-Control-Allow-Origin to * in order to be able to make cross-subdomain ajax calls.
Now I can't help but feel that I'm putting my environment to security risks.
Please help me if I'm doing it wrong.
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Vim: How do you open another [No Name] buffer like the one on startup?
...user can save to a file of her/his choosing, just like the initial buffer called [No Name] . How can I do this?
3 Answers
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