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Expand/collapse section in UITableView in iOS

Could somebody tell me the way to perform UITableView expandable/collapsible animations in sections of UITableView as below? ...
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What does the [Flags] Enum Attribute mean in C#?

...t expect in bitwise operations, because by default the values start with 0 and increment. Incorrect declaration: [Flags] public enum MyColors { Yellow, // 0 Green, // 1 Red, // 2 Blue // 3 } The values, if declared this way, will be Yellow = 0, Green = 1, Red = 2, Blu...
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UIView Infinite 360 degree rotation animation?

I'm trying to rotate a UIImageView 360 degrees, and have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position. ...
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How to convert a char array back to a string?

... No, that solution is absolutely correct and very minimal. Note however, that this is a very unusual situation: Because String is handled specially in Java, even "foo" is actually a String. So the need for splitting a String into individual chars and join them bac...
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Why is System.Web.Mvc not listed in Add References?

... problem I had. I chose to use the NuGet install method proscribed below, and I will comment there what I did. – qxotk Feb 9 '16 at 19:30 ...
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Files showing as modified directly after a Git clone

I'm having an issue with a repository at the moment, and though my Git-fu is usually good, I can't seem to solve this issue. ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...N *.* TO 'monty'@'%' -> WITH GRANT OPTION; Although as Pascal and others have noted it's not a great idea to have a user with this kind of access open to any IP. If you need an administrative user, use root, and leave it on localhost. For any other action specify exactly the privileges ...
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How do I create a unique constraint that also allows nulls?

...er below. Prior to SQL Server 2008 You cannot create a UNIQUE constraint and allow NULLs. You need set a default value of NEWID(). Update the existing values to NEWID() where NULL before creating the UNIQUE constraint. s...
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When is it acceptable to call GC.Collect?

...ant set of objects - particularly those you suspect to be in generations 1 and 2 - are now eligible for garbage collection, and that now would be an appropriate time to collect in terms of the small performance hit. A good example of this is if you've just closed a large form. You know that all the...
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Errors: “INSERT EXEC statement cannot be nested.” and “Cannot use the ROLLBACK statement within an I

I have three stored procedures Sp1 , Sp2 and Sp3 . 12 Answers 12 ...