捕捉关闭事件一个C＃形式 [英] Catching the close event on a c# form

问题描述

嘿！我并不想在这里把我的运气，但我还有一个C＃问题。
我已经尝试了一切可能的情况下，我发现使用谷歌。
下面是代码：

Hey! I am not trying to push my luck here but I have another c# question. I have tried every possible event I found using google. Here is the code:

 private void Form1_OnClose()
        {
            MessageBox.Show("I was closed -2");
        }

        private void Form1_Exit(object sender, EventArgs evArgs)
        {
            MessageBox.Show("I was closed -1");         
        }
        private void Form1_Closing(object sender, System.ComponentModel.CancelEventArgs e)
        {
            MessageBox.Show("I was closed 0");
        }     

        private void Form1_Closed(object sender, EventArgs e)
        {
            MessageBox.Show("I was closed 1");
        }
        private void Form1_FormClosed(Object sender, FormClosedEventArgs e)
        {

            MessageBox.Show("I was closed 2");
        }

不属其中之一触发什么时候我要么做Alt + F4键或点击X按钮。
我在做什么错在这里？

Not one of these trigger anything when I either do Alt+f4 or click on the X button. What am I doing wrong here?

推荐答案

您可能是缺少实际认购代码，这是东西沿着这些路线

You might be missing actual subscription code, which is something along these lines:

this.Closing += Form1_Closing;

相反，尝试重写的 OnXXX 的方法 - 这是在做的首选方式的东西。

Instead, try overriding OnXXX methods - this is the preferred way of doing things.

这篇关于捕捉关闭事件一个C＃形式的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！