大约有 8,200 项符合查询结果(耗时:0.0193秒) [XML]

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Find() vs. Where().FirstOrDefault()

I often see people using Where.FirstOrDefault() to do a search and grab the first element. Why not just use Find() ? Is there an advantage to the other? I couldn't tell a difference. ...
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Original purpose of ? [closed]

I am curious about the original purpose of the <input type="hidden"> tag. 5 Answers ...
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Tying in to Django Admin's Model History

The Setup: 5 Answers 5 ...
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Creating a copy of an object in C# [duplicate]

Please have a look at the code below (excerpt from a C# book): 4 Answers 4 ...
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C++ template constructor

I wish to have a non-template class with a template constructor with no arguments. 8 Answers ...
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can you host a private repository for your organization to use with npm?

Npm sounds like a great platform to use within an organization, curious if a private repo is possible, like with Nexus/Maven. Nothing comes up on Google :( ...
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Why do most fields (class members) in Android tutorial start with `m`?

...se rules, but I'm confused with this m rule. What does it stand for? I'm a PHP developer. "We" use first letters of variables as indication of type, like 'b' for boolean, 'i' for integer and so on. ...
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Update a record without first querying?

Lets say I query the database and load a list of items. Then I open one of the items in a detail view form, and instead of re-querying the item out of the database, I create an instance of the item from the datasource in the list. ...
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How does !!~ (not not tilde/bang bang tilde) alter the result of a 'contains/included' Array method

If you read the comments at the jQuery inArray page here , there's an interesting declaration: 13 Answers ...
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How to set time delay in javascript

I have this a piece of js in my website to switch images but need a delay when you click the image a second time. The delay should be 1000ms. So you would click the img.jpg then the img_onclick.jpg would appear. You would then click the img_onclick.jpg image there should then be a delay of 1000ms be...