多播委托必须仅包含返回void的方法。为什么？ [英] Multicast delegates must contain only methods that return void. why?

问题描述

组播代表必须只包含返回void的方法。



为什么会这样？

Multicast delegates must contain only methods that return void.

why is it so?

推荐答案

代表如何知道您的多个注册所返回的对象应该返回处理？



它只能返回一个执行该事件只能有一个响应。



因此多播必须无效，以确保问题被否定。

How would the event for the delegate know which of the objects returned by your multiple registrations should be returned to be processed?

It can only return one as the execution of the event can only have one response.

Therefore multicast must be void ensuring the problem is negated.

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