是什么在C＃中的委托和事件之间的区别？ [英] What is the difference between delegate and event in C#?

问题描述

可能重复：结果
的什么是委托和事件之间的区别？

这问题，我在接受采访时得到了，我还是不知道答案是什么。结果
我将不胜感激任何想法！

< DIV CLASS =h2_lin>解决方案

我有一个文章上几乎完全

在简单地说，你能想到的事件作为一个有点像一个属性 - 但不是在的get / set操作，它已添加/删除。 。添加/删除的值总是委托引用

代表自己支持的操作：

• 联合（链的多个委托实例）


• 删除（再次分裂起来）


• 调用（同步或异步）


• 各种事情要做找出目标，调用列表等等

注意，代表本身不变的，所以合并/删除操作返回一个新委托实例，而不是修改现有的。

Possible Duplicate:
What is the difference between a delegate and events?

This question I got at an interview and I still don't know what the answer should be.
I would appreciate any thoughts!

解决方案

I have an article on pretty much exactly

In brief, you can think of an event as being a bit like a property - but instead of having get/set operations, it has add/remove. The value being added/removed is always a delegate reference.

Delegates themselves support operations of:

• Combine (chain multiple delegate instances together)
• Remove (split them up again)
• Invoke (synchronous or asynchronous)
• Various things to do with finding out the target, invocation list etc

Note that delegates themselves are immutable, so combine/remove operations return a new delegate instance rather than modifying the existing ones.

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