内部类的事件处理方法如清单 2 所示。

The event handling method of the inner class is shown in Listing 2.

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事件处理方法返回任何其他对象类型都是错误的。

Any other type of object returned from an event handler method is an error.

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同样也可以在代码后置文件中来关联事件处理方法。

You can also associate an event with its event handler in the code-behind. The following code shows how to do this in C#.

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