大约有 31,000 项符合查询结果(耗时:0.0676秒) [XML]

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Is there a way to detect if a browser window is not currently active?

... @JulienKronegg: that's why my answer specifically mentions the Page Visibility API which entered working draft status after I originally wrote my answer. The focus/blur methods provide limited functionality for older browsers. Binding to other events, ...
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How to COUNT rows within EntityFramework without loading contents?

... Query syntax: var count = (from o in context.MyContainer where o.ID == '1' from t in o.MyTable select t).Count(); Method syntax: var count = context.MyContainer .Where(o => o.ID == '1') .SelectMany(o =...
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How to remove “Server name” items from history of SQL Server Management Studio

... It's a pity, that I can't delete exactly group of server, not all my user settings. – Johnny_D Nov 4 '13 at 20:39 2 ...
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Get push notification while App in foreground iOS

I am using push notification service in my app. When app is in background I am able to see notification on notification screen(screen shown when we swipe down from top of iOS device). But if application is in foreground the delegate method ...
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Default value of a type at Runtime [duplicate]

... There's really only two possibilities: null for reference types and new myType() for value types (which corresponds to 0 for int, float, etc) So you really only need to account for two cases: object GetDefaultValue(Type t) { if (t.IsValueType) return Activator.CreateInstance(t); ...
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What's the difference between “STL” and “C++ Standard Library”?

Someone brought this article to my attention that claims (I'm paraphrasing) the STL term is misused to refer to the entire C++ Standard Library instead of the parts that were taken from SGI STL. ...
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CSS z-index paradox flower

... Here's my attempt: http://jsfiddle.net/Kx2k5/1/ (successfully tested on Fx27, Ch33, IE9, Sf5.1.10 and Op19) CSS .item { /* include borders on width and height */ -webkit-box-sizing : border-box; -moz-box-sizing : b...
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How can I convert a datetime object to milliseconds since epoch (unix time) in Python?

... @suhail: read my comment above about mktime/timetuple. Also timetuple() strips fractions of a second and the point of the question is to get the timestamp with millisecond precision. – jfs Dec 29 '14 ...
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How do I make a batch file terminate upon encountering an error?

...or goto" type of construct in cmd.exe/command.com batch. I've also updated my code per CodeMonkey, although I've never encountered a negative errorlevel in any of my batch-hacking on XP or Vista. share | ...
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How do I make jQuery wait for an Ajax call to finish before it returns?

....ajax() function to return immediately, set the async option to false: $(".my_link").click( function(){ $.ajax({ url: $(this).attr('href'), type: 'GET', async: false, cache: false, timeout: 30000, fail: function(){ return true; ...