如何通过单击“x”来检测表单何时关闭。在左上角 [英] How to detect when a form is closed by clicking on the "x" in upper left hand corner

问题描述

通过点击"x"关闭表单时在左上角，我不知道如何在我的Visual Basic 2015代码中检测到这个或怎么做，以使我的应用程序能够再次访问该表单而不会得到"无法访问已处置的
对象" ; 。消息 你能帮我解决这个问题吗？

When a form is closed by clicking on the "x" in the upper left corner, I do not know how to detect this or what to do in my code in Visual Basic 2015, to enable my application to access that form again and not get a "cannot access a disposed object" message.  Can you help me with this?

推荐答案

我弄清楚了。 我学会了如何使用IsDisposed来检测和修复它。

I figured it out.  I learned how to use IsDisposed to detect and fix this.

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