为什么类和关键字继承到Generic接口？ [英] Why the class and where Keywords inherited to Generic interface?

问题描述

在我的代码片段中，我看到以下行

In my code snippet i have seen the below line

public interface IDbSet<tentity> : IQueryable<tentity>, IEnumerable<tentity>, IQueryable, IEnumerable where TEntity : class

这个目的是什么，请您简要介绍一下这个的优点。



[edit]已添加代码块 - OriginalGriff [/ edit]

what is the purpose of this could you please tell me briefly what is the advantage of this.

[edit]Code block added - OriginalGriff[/edit]

推荐答案

它声明了一个新的界面它实现了四个现有接口，并坚持使用它的Generic参数必须是 class ：它不能是另一个接口或 struct 。



如果您不了解接口，那么您需要从这里开始： http://msdn.microsoft.com/en-us/library/ms173156.aspx [ ^ ] - 在一个小文本框中讨论它有点太大了！

It's declaring a new interface which implements four existing interfaces, and which insists that the Generic parameter that it is used with must be a class: it can't be another interface or a struct.

If you don't understand interfaces, then you need to start here: http://msdn.microsoft.com/en-us/library/ms173156.aspx[^] - it's a bit too big to discuss in a small textbox!

可能在里面接口有使用TEntity类的方法。我可以进行包含返回值和/或参数方法的预测，这些方法使用像IEnumerable一样的集合（

Probably inside interface there are methods that use TEntity class.I can make a prediction that contains return value and/or arguments methods which use something IEnumerable like collection (

new List<myclass>

）以及与linq相关的东西。

希望有用。

嗨。

) and something related to linq as well.
Hope helpful.
Hi.

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