该按钮控制项会触发伺服器程序码中的事件，使您能够处理以回应回传。
The button controls trigger an event in server code that you can handle to respond to the postback.
参考字串是由处理回传的指定控制项和其他事件资讯的字串引数所定义。
The reference string is defined by the specified control that handles the postback and a string argument of additional event information.
不过，如果控制项或作用点是设定为执行回传，则您可以写入事件的处理常式，并判断所按下的是哪一个作用点。
However, if the control or hot spot is configured to perform a postback, you can write a handler for the event and determine which hot spot was clicked.
伺服器事件会在回传后发生，并且会在为网页所撰写的伺服器端程序码中处理这些事件。
Server events occur after postbacks, and they are handled in the server-side code that you write for the page.
伺服器事件会在回传后发生，并且会在为网页所撰写的伺服器端程序码中处理这些事件。
Server events occur after postbacks, and they are handled in the server-side code that you write for the page.
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