大约有 48,000 项符合查询结果(耗时:0.0690秒) [XML]

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Ruby on Rails: How do I add placeholder text to a f.text_field?

...to my f.text_field fields so that the text comes pre-written by default, and when a user click inside the fields, the text goes away - allowing the user to type in the new text? ...
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How do I get an animated gif to work in WPF?

...Gif You can install it with NuGet PM> Install-Package WpfAnimatedGif and to use it, at a new namespace to the Window where you want to add the gif image and use it as below <Window x:Class="MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http:...
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Django template how to look up a dictionary value with a variable

... Fetch both the key and the value from the dictionary in the loop: {% for key, value in mydict.items %} {{ value }} {% endfor %} I find this easier to read and it avoids the need for special coding. I usually need the key and the value in...
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Add only non-whitespace changes

... text editor to automatically trim trailing whitespace upon saving a file, and I am contributing to an open source project that has severe problems with trailing whitespace. ...
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Is nested function a good approach when required by only one function? [closed]

... do_it() does would presumably be a bit more complicated than what can be handled by some arithmetic in a single return statement. – martineau Sep 2 '14 at 13:07 2 ...
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Difference between “!==” and “==!” [closed]

... ==! in any language so I wondered how the hell this code could even work and did some testing: 5 Answers ...
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how to remove X-Powered-By in ExpressJS [duplicate]

I want to remove X-Powered-By for Security,Save Bandwidth in ExpressJS(node.js). how to do it? it could be filter(app.use) ? ...
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Is there a command to undo git init?

I just Git init'ed a repos with a wrong user, and want to undo it. Is there any command for this? Do I actually have to go in and edit the .git directory? ...
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How to remove focus without setting focus to another control?

I like my UIs to be intuitive; each screen should naturally and unobtrusively guide the user on to the next step in the app. Barring that, I strive to make things as confusing and confounding as possible. ...
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How do I find the stack trace in Visual Studio?

... would be nice for it to show the callers of the objects that throws an unhandled exception. Is there a hidden option to make it useful? Perhaps you can expand on your answer to provide examples. – James Jan 16 '15 at 16:43 ...