Removing anonymous event handlers [duplicate]

问题

This question already has an answer here:

Closed 8 years ago.

Possible Duplicate:
C#: How to remove a lambda event handler

Is it possible to remove an event handler which was attached as anonymous function? Let's say I have an event, and I subscribe to it in this way:

TestClass classs = new TestClass ();
classs.myCustomEvent +=  (a,b) => { Console.Write(""); };

Is it possible somehow to remove this eventHandler using -= ??

回答1:

It is possible, but you need to store it in a local variable first:

MyDelegate handler = (a, b) => { Console.Write(""); };
class.myCustomEvent += handler;
class.myCustomEvent -= handler;

来源：https://stackoverflow.com/questions/6460281/removing-anonymous-event-handlers