如何清除所有的事件处理程序 [英] How to remove all eventhandler

问题描述

假设我们有一个委托

  public delegate void MyEventHandler（string x）; 
  

和事件处理程序

  public event MyEventHandler Something; 
  

我们添加了多个事件..

 for（int x = 0; x< 10; x ++）
 {
 this.Something + = HandleSomething; 
} 
  

我的问题是...如何从事件处理程序中删除所有方法不知道它被添加了10（或多或少）次？

解决方案

只需将事件设置为 null ：

  this.Something = null; 
  

它将取消注册所有事件处理程序。

Lets say we have a delegate

public delegate void MyEventHandler(string x);

and an event handler

public event MyEventHandler Something;

we add multiple events..

for(int x = 0; x <10; x++)  
{
   this.Something += HandleSomething;
}

My question is .. how would one remove all methods from the eventhandler presuming one doesn't know its been added 10 (or more or less) times?

解决方案

Simply set the event to null:

this.Something = null;

It will unregister all event handlers.

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