ListBox.SelectedIndexChanged

ListBox.SelectedIndexChanged - 你可以确定它是否是用户启动的？(ListBox.SelectedIndexChanged - can you determine if it was user initiated?)

我的问题类似于这样： 如何防止ListBox.SelectedIndexChanged事件？ ，但我想问一个不同的方式。

有没有一种简单的方法来确定'SelectedIndexChanged'是否来自用户，而不是通过代码启动（例如ListBox.SelectedIndex = x）？

My question is similar to this: How to prevent ListBox.SelectedIndexChanged event?, but I want to ask it a different way.

Is there a simple way to determine if the 'SelectedIndexChanged' is coming from the user as opposed to initiated through code (e.g. ListBox.SelectedIndex = x)?

最满意答案

据我所知，不，没有简单的内置方法。 我已经能够做的最好的就是在代码改变之前设置一个标志，然后让事件处理程序重置标志并返回。

我想你可以开始检查调用堆栈，看看它是否在你自己的代码的某个地方发起，但我不确定这个工作值多少钱。

As far as I know, no, there's no simple way built-in. The best I've been able to do is set a flag just before changing it in code and then letting the event handler reset the flag and return.

I suppose you could start examining the call stack and see if it's originating somewhere in your own code or not, but I'm not sure how much it's worth the effort.