大约有 46,000 项符合查询结果（耗时：0.1150秒） [XML]
Should I Dispose() DataSet and DataTable?
... both implement IDisposable, so, by conventional best practices, I should call their Dispose() methods.
10 Answers
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How can I check whether a radio button is selected with JavaScript?
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I don't really follow what you're saying? Are interested in whether or not ANY radio button is selected?
– Mark Biek
Sep 14 '09 at 20:41
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How do I negate a test with regular expressions in a bash script?
...ate a test with Regular Expressions. For example, I would like to conditionally add a path to the PATH variable, if the path is not already there, as in:
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Converting RGB to grayscale/intensity
...ly different numbers / different methods,
you won't see much difference at all on a normal computer screen
under normal lighting conditions -- try it.
Here are some more links on color in general:
Wikipedia Luma
Bruce Lindbloom 's outstanding web site
chapter 4 on Color in the book by Colin Wa...
Check play state of AVPlayer
Is there a way to know whether an AVPlayer playback has stalled or reached the end?
11 Answers
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Alarm Manager Example
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I tried the solution from XXX and while it did initially work, at some point it stopped working. The onReceive never got called again. I spent hours trying to figure out what it could be. What I came to realize is that the Intent for whatever mysterious reason was no longer be...
PG::ConnectionBad - could not connect to server: Connection refused
... #2 is a great suggestion: "Check server.log". My error was actually caused by upgrading to Yosemite, the server log said: FATAL: could not open directory "pg_tblspc": No such file or directory. This answer helped me with that problem stackoverflow.com/questions/25970132/…
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dismissModalViewControllerAnimated deprecated
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The word modal has been removed; As it has been for the presenting API call:
[self presentViewController:vc animated:NO completion:nil];
The reasons were discussed in the 2012 WWDC Session 236 - The Evolution of View Controllers on iOS Video. Essentially, view controllers presented by this API...
Two-dimensional array in Swift
... @vacawama, cool, except your n-dimensional array has the same problem as all the solutions that populate the array using Array(repeating:count:). See the comment I posted to your other answer.
– Duncan C
Sep 11 '18 at 0:39
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Best way to store time (hh:mm) in a database
...e, but what's the best way to do this without storing more info than I actually need?
15 Answers
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