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When is it better to use String.Format vs string concatenation?

I've got a small piece of code that is parsing an index value to determine a cell input into Excel. It's got me thinking... ...
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How to use UIScrollView in Storyboard

I have a scroll view with content that is 1000px tall and would like to be able to lay it out for easy design on the storyboard. I know it can be done programmatically but I really want to be able to see it visually. Every time I put a scroll view on a view controller it won't scroll. Is it possib...
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How do I suspend painting for a control and its children?

... and reflector usage I came across the WM_SETREDRAW win32 message. This really stops controls drawing whilst you update them and can be applied, IIRC to the parent/containing panel. This is a very very simple class demonstrating how to use this message: class DrawingControl { [DllImport("user...
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Where should virtualenvs be created?

... Many people use the virtualenvwrapper tool, which keeps all virtualenvs in the same place (the ~/.virtualenvs directory) and allows shortcuts for creating and keeping them there. For example, you might do: mkvirtualenv djangoproject and then later: workon djangoproject It's ...
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how do you push only some of your local git commits?

...ot have to use master~3. Any reference to the desired "up to" commit is equally valid, such as HEAD~3 or HEAD~~~, or the specific SHA, or a tag which labels that commit. – Kaz Jul 4 '14 at 18:49 ...
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How to configure MongoDB Java driver MongoOptions for production use?

... Updated to 2.9 : autoConnectRetry simply means the driver will automatically attempt to reconnect to the server(s) after unexpected disconnects. In production environments you usually want this set to true. connectionsPerHost are the amount of physical connections a single Mongo instance (it's si...
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How to deal with IntelliJ IDEA project files under Git source control constantly changing?

...trol: .ipr file based format Share the project .ipr file and and all the .iml module files, don't share the .iws file as it stores user specific settings. .idea directory based format Share all the files under .idea directory in the project root except the workspace.xml and t...
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Does Java support default parameter values?

...berson: Static factory methods are no more harmful than new. They are used all the time in new code. Builders for simple value objects are often the result of over-engineering. – Lii Jan 22 '16 at 8:38 ...
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NUnit isn't running Visual Studio 2010 code

... VS2008 solution in the VS2010 beta. Once the conversion finished I opened all the projects and changed the target framework setting for all the projects to ".NET Framework 4.0". I then built the solution without any errors. I can now use the NUnit GUI app to run tests built for .NET 4.0. I've not d...
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Check if one IEnumerable contains all elements of another IEnumerable

What is the fastest way to determine if one IEnumerable contains all the elements of another IEnumerable when comparing a field/property of each element in both collections? ...