大约有 46,000 项符合查询结果(耗时:0.0431秒) [XML]

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What's the difference(s) between .ToList(), .AsEnumerable(), AsQueryable()?

...y we would typically write something like var query = context.Observations.Select(o => o.Id) .AsEnumerable().Select(x => MySuperSmartMethod(x)) ToList – which converts an IEnumerable<T> to a List<T> – is often used for this purpose as well. The advantage of...
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In Vim is there a way to delete without putting text in the register?

... Any ideas on doing this selectively on only empty lines? (If I dd on an empty line it goes into the blackhole, otherwise it dds like normal). – Jonathan Dumaine Mar 5 '13 at 23:28 ...
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How to get the selected radio button’s value?

...r working. I just want to find the value of the radio button (which one is selected) and return it to a variable. For some reason it keeps returning undefined . ...
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List of Stored Procedures/Functions Mysql Command Line

... For view procedure in name wise select name from mysql.proc below code used to list all the procedure and below code is give same result as show procedure status select * from mysql.proc ...
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How to check if mysql database exists

... SELECT SCHEMA_NAME FROM INFORMATION_SCHEMA.SCHEMATA WHERE SCHEMA_NAME = 'DBName' If you just need to know if a db exists so you won't get an error when you try to create it, simply use (From here): CREATE DATABASE IF NO...
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Xcode 6 Storyboard the wrong size?

...way at some point." You probably haven't added the layout constraints. Select your label, tap the layout constraints button on the bottom: On that menu add width and height (it should NOT be the same as mine) by checking their checkbox and click add constraints. Then Control-drag your label t...
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View more than one project/solution in Visual Studio

... With multiple projects, if I have multiple main() methods, how do I select which I want to have compiled? – 5Daydreams Aug 11 at 16:12 add a comment  ...
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querySelector search immediate children

... Though it's not a full answer, you should keep an eye on the W3C Selector API v.2 which is already available in most browser, both desktop and mobile, except IE (Edge seems to support): see full support list. function(elem) { return elem.querySelectorAll(':scope > someselector'); }; ...
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Adding options to a using jQuery?

... This did NOT work in IE8 (yet did in FF): $("#selectList").append(new Option("option text", "value")); This DID work: var o = new Option("option text", "value"); /// jquerify the DOM object 'o' so we can use the html method $(o).html("option text"); $("#selectList").a...
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The import javax.servlet can't be resolved [duplicate]

...ibraries tab Click Add External JARs... Browse to find servlet-api.jar and select it. Click OK to update the build path. Or, if you copy the JAR into your project: Right-click the project, click Properties. Choose Java Build Path. Click Add JARs... Find servlet-api.jar in your project and select...