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Cast List to List
...List<Apple>();
List<IFruit> fruit = apples; // Fortunately not allowed
fruit.Add(new Banana());
// Eek - it's a banana!
Apple apple = apples[0];
Now you can convert a List<Apple> to an IEnumerable<IFruit> in .NET 4 / C# 4 due to covariance, but if you want a List<IFruit...
Div width 100% minus fixed amount of pixels
...R: Yes, that works also, and is easier to use as you don't have to overide all settings of the less specific rule. The answer was written when the support for the > operator was still not good enough to be reliable.
– Guffa
May 22 '13 at 17:14
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Deleting a Google App Engine application
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You can send them an email if you REALLY want the ID. They can give it back for a specific project. I haven't personally done it but I saw people in google groups saying it's possible
– Patrice
Jul 31 '14 at 16:13
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Why doesn't await on Task.WhenAll throw an AggregateException?
... been some changes to exception handling, but the newest docs for Task.WhenAll state "If any of the supplied tasks completes in a faulted state, the returned task will also complete in a Faulted state, where its exceptions will contain the aggregation of the set of unwrapped exceptions from each of ...
How can I update window.location.hash without jumping the document?
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There is a workaround by using the history API on modern browsers with fallback on old ones:
if(history.pushState) {
history.pushState(null, null, '#myhash');
}
else {
location.hash = '#myhash';
}
Credit goes to Lea Verou
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Array initialization syntax when not in a declaration
... it can distinguish the two cases. The grammatical issue is not subtle at all!!
– Stephen C
Mar 22 '11 at 11:12
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How/When does Execute Shell mark a build as failure in Jenkins?
...e said:
If you have a shell script that does "checkout, build, deploy" all by itself, then why are you using Jenkins? You are foregoing all the features of Jenkins that make it what it is. You might as well have a cron or an SVN post-commit hook call the script directly. Jenkins performing the S...
How do I make XAML DataGridColumns fill the entire DataGrid?
...Width="*" the column will fill to expand the available space.
If you want all columns to divide the grid equally apply this to all columns. If you just want one to fill the remaining space just apply it to that column with the rest being "Auto" or a specific width.
You can also use Width="0.25*" (...
Is it safe to delete a NULL pointer?
...ter delete. Setting a pointer to NULL after deleting it masquerades memory allocation errors, which is a very bad thing. A program that is correct does not delete a pointer twice, and a program that does delete a pointer twice should crash.
– Damon
Aug 30 '13 a...
What is the best way to add options to a select from a JavaScript object with jQuery?
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I would first of all assign $("#mySelect") to a var, otherwise calling $("#mySelect") every time inside the loop is very wasteful, as is updating the DOM. See points #3 and #6 at artzstudio.com/2009/04/jquery-performance-rules/…
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