我应该实例化一个新的代表吗？ [英] Should I instantiate a new delegate or not?

问题描述

我只是意识到我可以通过两种方式添加事件处理程序：

I just realized I can add an event handler in two ways:

考虑一个事件处理程序：

Consider an event handler like so:

private void MyEventHandler()
{}

方法1：实例化新的委托

Method 1: Instantiate a new delegate

MyObject.MyEvent += new Action(MyEventHandler);

方法2：添加事件处理程序而不实例化新委托

Method 2: Add event handler without instantiating a new delegate

MyObject.MyEvent += MyEventHandler;

应该考虑这两种实现之间有什么区别？

Is there any difference in between these two implementations that should be considered?

推荐答案

没有区别，生成的IL是一样的。尽管Visual Studio仍然在Tab Completion上执行了第一种形式，但是在.net / c＃2.0中引入了较短的形式。

There is no difference, the generated IL is the same. The shorter form was introduced in .net/c# 2.0 as a convenience function, although Visual Studio still does the first form on Tab Completion.

请参阅这个问题了解更多信息。

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