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Android: How to enable/disable option menu item on button click?

...enu() method is called only once, as described above. The system keeps and re-uses the Menu you define in this method until your activity is destroyed. If you want to change the Options Menu any time after it's first created, you must override the onPrepareOptionsMenu() method. This ...
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Best way to parse command line arguments in C#? [closed]

... I would strongly suggest using NDesk.Options (Documentation) and/or Mono.Options (same API, different namespace). An example from the documentation: bool show_help = false; List<string> names = new List<string> (); int repeat = 1; var p = new OptionSet () { { "n|name...
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Intellisense and code suggestion not working in Visual Studio 2012 Ultimate RC

I have just downloaded and installed Visual Studio 2012 Ultimate RC, but I'm having an issue with the intellisense: it does not work until I press Ctrl + Space . Code suggestions are disabled also (method parameters for example). ...
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Using IPython notebooks under version control

... Here is my solution with git. It allows you to just add and commit (and diff) as usual: those operations will not alter your working tree, and at the same time (re)running a notebook will not alter your git history. Although this can probably be adapted to other VCSs, I know it d...
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Python hashable dicts

As an exercise, and mostly for my own amusement, I'm implementing a backtracking packrat parser. The inspiration for this is i'd like to have a better idea about how hygenic macros would work in an algol-like language (as apposed to the syntax free lisp dialects you normally find them in). Because...
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onKeyPress Vs. onKeyUp and onKeyDown

...ginally used in this answer. From that link: In theory, the onKeyDown and onKeyUp events represent keys being pressed or released, while the onKeyPress event represents a character being typed. The implementation of the theory is not same in all browsers. ...
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What is the difference between Modal and Push segue in Storyboards?

Can someone explain to me what is the exact difference between modal and push segue? 4 Answers ...
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Understanding the difference between __getattr__ and __getattribute__

I am trying to understand the difference between __getattr__ and __getattribute__ , however, I am failing at it. 4 Answe...
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How to split csv whose columns may contain ,

... Use the Microsoft.VisualBasic.FileIO.TextFieldParser class. This will handle parsing a delimited file, TextReader or Stream where some fields are enclosed in quotes and some are not. For example: using Microsoft.VisualBasic.FileIO; string csv = "2,1016,7/31/2008 14:22,Geoff Dalgas,6/5/2011 2...
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LINQ Single vs First

...ou mean the other. Note: In my code, I will typically use FirstOrDefault() and SingleOrDefault() but that's a different question. Take, for example, a table that stores Customers in different languages using a Composite Key ( ID, Lang ): DBContext db = new DBContext(); Customer customer = db.Custome...