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Android: show soft keyboard automatically when focus is on an EditText
I'm showing an input box using AlertDialog . The EditText inside the dialog itself is automatically focused when I call AlertDialog.show() , but the soft keyboard is not automatically shown.
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How much size “Null” value takes in SQL Server
I have a large table with say 10 columns. 4 of them remains null most of the times. I have a query that does null value takes any size or no size in bytes. I read few articles some of them are saying :
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Generics in C#, using type of a variable as parameter [duplicate]
...hat types need to be known at compile-time.
You can call generic methods with types only known at execution time, but you have to use reflection:
// For non-public methods, you'll need to specify binding flags too
MethodInfo method = GetType().GetMethod("DoesEntityExist")
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How to check command line parameter in “.bat” file?
...ne parameter then I will do something. I have created following .bat file. It works for -b and not-equal to -b cases - but it fails when user does not pass any command-line parameter.
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Preferred method to store PHP arrays (json_encode vs serialize)
...for caching purposes. I might occasionally come across the need to convert it to JSON for use in my web app but the vast majority of the time I will be using the array directly in PHP.
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How do I remove version tracking from a project cloned from git?
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All the data Git uses for information is stored in .git/, so removing it should work just fine. Of course, make sure that your working copy is in the exact state that you want it, because everything else will be lost. .git folder is hidden...
How to change the remote a branch is tracking?
The central repository had to be set up on a new server, so I created a new remote on my local repo, and pushed to that.
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Why use a ReentrantLock if one can use synchronized(this)?
...t if one can use synchronized (this) . In the dummy code below, I can do either:
8 Answers
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Can anyone explain IEnumerable and IEnumerator to me? [closed]
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for example, when to use it over foreach?
You don't use IEnumerable "over" foreach. Implementing IEnumerable makes using foreach possible.
When you write code like:
foreach (Foo bar in baz)
{
...
}
it's functionally equivalent to writing:
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How to check if function exists in JavaScript?
...follow
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edited Aug 2 '16 at 12:20
j0k
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