ListBox.SelectedIndexChanged-您可以确定它是否由用户启动吗? [英] ListBox.SelectedIndexChanged - can you determine if it was user initiated?

问题描述

我的问题与此类似:如何防止ListBox.SelectedIndexChanged事件?，但是我想问一个不同的方法.

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

是否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(例如ListBox.SelectedIndex = x)来启动?

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)?

推荐答案

据我所知，没有，没有简单的内置方法.我能做的最好的事情就是在代码中更改它之前设置一个标志，然后让事件处理程序重置该标志并返回.

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.

我想您可以开始检查调用堆栈，看看它是否起源于您自己的代码中，但是我不确定这样做值得多少.

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.

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