ListBox.SelectedIndexChanged - 你可以确定是否被用户注册？ [英] ListBox.SelectedIndexChanged - can you determine if it was user intiated?

问题描述

我的问题类似于此：如何阻止ListBox.SelectedIndexChanged事件？ a>，但是我想要一个不同的方式。

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

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（例如ListBox.SelectedIndex = x）？

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，不，没有简单的方法内置。我能够做的最好的事情是在代码更改之前设置一个标志，然后让事件处理程序重新设置标志并返回。

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.

我想你可以开始检查调用堆栈，看看它是否源自你自己的代码中的某个地方，但我不知道这是多少值得努力。

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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