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View not attached to window manager crash

...ashes. I was getting a View not attached to window manager error message and thought I had fixed it by wrapping the pDialog.dismiss(); in an if statement: ...
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FirstOrDefault: Default value other than null

As I understand it, in Linq the method FirstOrDefault() can return a Default value of something other than null. What I haven't worked out is what kind of things other than null can be returned by this (and similar) method when there are no items in the query result. Is there any particular wa...
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How do I escape ampersands in batch files?

How do I escape ampersands in a batch file (or from the Windows command line) in order to use the start command to open web pages with ampersands in the URL? ...
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How to create an empty file at the command line in Windows?

How to create an empty file at the DOS/Windows command-line? 32 Answers 32 ...
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Text vertical alignment in WPF TextBlock

...ure that's always true. I've got this set-up, the border has height "Auto" and it's working fine. It's in a grid cell with starred row heights (and other things in the row). – Bob Sammers Apr 29 '15 at 7:17 ...
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How to extract the n-th elements from a list of tuples?

... and use **dict to create keyword arguments: def test(foo=3, bar=3): return foo*bar then d = {'bar': 9, 'foo'=12}; print test(**d) – Wayne Werner Jul 22 '10 at 12:58 ...
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What are all the valid self-closing elements in XHTML (as implemented by the major browsers)?

...nly) browsers to accept XHTML 1.0 documents by following the guidelines, and serving them as text/html. Therefore, documents served as text/html should be treated as HTML and not as XHTML. It's a very common pitfall, because W3C Validator largely ignores that rule, but browsers follow it relig...
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Sorting a vector in descending order

... the numberContainer - a good idea so that someone CAN swap to long long - and write: std::sort(numbers.begin(), numbers.end(), std::greater<numContainer::value_type>()); – RichardHowells May 14 '13 at 19:39 ...
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How can I check if a key exists in a dictionary? [duplicate]

...y: # do something Associative arrays are called dictionaries in Python and you can learn more about them in the stdtypes documentation. share | improve this answer | foll...
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How to determine the version of the C++ standard used by the compiler?

How do you determine what version of the C++ standard is implemented by your compiler? As far as I know, below are the standards I've known: ...