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Dismiss keyboard by touching background of UITableView

I have a UITableView with UITextField s as cells. I would like to dismiss the keyboard when the background of the UITableView is touched. I'm trying to do this by creating a UIButton the size of the UITableView and placing it behind the UITableView . The only problem is the UIButton i...
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When and why are database joins expensive?

I'm doing some research into databases and I'm looking at some limitations of relational DBs. 7 Answers ...
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How do I clone a generic List in Java?

I have an ArrayList<String> that I'd like to return a copy of. ArrayList has a clone method which has the following signature: ...
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Dynamic array in C#

Is there any method for creating a dynamic array in C#? 9 Answers 9 ...
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Does Java have a using statement?

Does Java have a using statement that can be used when opening a session in hibernate? 12 Answers ...
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Difference between java.io.PrintWriter and java.io.BufferedWriter?

Please look through code below: 8 Answers 8 ...
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python dataframe pandas drop column using int

I understand that to drop a column you use df.drop('column name', axis=1). Is there a way to drop a column using a numerical index instead of the column name? ...
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Putting a simple if-then-else statement on one line [duplicate]

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grid controls for ASP.NET MVC? [closed]

If you are using ASP.NET MVC how are you doing grid display? Rolled your own? Got a library from somewhere? 12 Answers ...
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How can I combine multiple rows into a comma-delimited list in Oracle? [duplicate]

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