我可以找出哪些控制事件会在ASP回发时触发吗? [英] Can I find out which control events will fire on an ASP postback?

问题描述

是否可以在 Page_Load 处理程序内部获取将要触发的控制事件的列表?

Is it possible to get a list of control events that are going to fire before they happen, say inside the Page_Load handler?

例如，如果单击了一个按钮，我可以在调用 button_click 事件处理程序之前解决这个问题吗?

For example if a button was clicked can I figure this out before the button_click event handler is called?

推荐答案

您已经选择了一个非常棘手的问题...其原因是事件可以通过多种方式触发.

You've picked a really tough question... the reason for this is that there are several ways that events will fire.

1)__EVENTTARGET(如上所述)2)如果您的按钮名称是MyButt，那么您将在查询字符串中看到"MyButt =.3)当每个控件(例如，一个TextBox)检查该请求以查看其在ViewState中的值是否不同于发布的值时，将触发"Text_Changed".

1) __EVENTTARGET (as mentioned above) 2) If the name of your button is MyButt, then you'll see "MyButt=" in the query string. 3) When each control (like, a TextBox for example) checks the request to see if it's value in the ViewState is different than posted, then a "Text_Changed" will fire.

但是，您可以使用#1和#2来检查几个地方.

But, you can use #1, and #2 to check a few places.

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