最后一个事件将会发生于每一个控件之上,然后,一直到结束.这时,所有的控件将会输出流并且不能够再被改变.在这个事件中,任何试图访问应答流的方法将都会出现错误.这个事件主要被用来清除善后工作,比如说数据库连接,打开的文件流,事件日志,或者其他的任务等等.

At this point, all controls have been rendered to the output stream and cannot be changed. During this event any attempt to access the response stream will result in an exception being thrown.

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