Windows窗体中的表单结束事件？ [英] Form Closing Event in Windows Form?

问题描述

Public Class1()
{
   this.FormClosing += OnFormClosing();
}

private void OnFormClosing(object Sender, EventArgs e)
{
   base.OnFormClosing(e);
   if (e.CloseReason == CloseReason.WindowsShutDown)
   {
      form_closing();//here i wrote my function to happen
   }
}

private void formcloasing()
{
   Class cls = new cls();
   cls.RemovefromOpenedChats((int)this.Tag);
}

我面临的问题：

方法'OnFormClosing'没有重载需要0个参数



我需要的解决方案？

如何在点击红色关闭（X）按钮时以Windows窗体编写函数？

Issue which I am facing:
No overload for method 'OnFormClosing' takes 0 arguments

Solution I need?
How to write a function in windows form while clicking red close(X) button?

推荐答案

试试这个：

Try this:

 protected override void OnFormClosing(FormClosingEventArgs e)
{
    //base.OnFormClosing(e);
    if (e.CloseReason == CloseReason.WindowsShutDown)
    { 
        //Do your stuff here
    }
}

--Amit

--Amit

这是您从私有虚空OnFormClosin调用的方法g（object Sender，EventArgs e）

This is the method you are making call from private void OnFormClosing(object Sender, EventArgs e)

private void formcloasing()
{
Class cls = new cls();
cls.RemovefromOpenedChats((int)this.Tag);
}

..你传递参数

..and you're passing a parameter

base.OnFormClosing(e);

哪个完全无效。

Which is completely invalid.

Public Constructor_Class（ ）

{

this.FormClosing + = OnFormClosing（）;

}

public void OnForm_Closing（object Sender， EventArgs e）

{

//你的功能;

}

Public Constructor_Class()
{
this.FormClosing+=OnFormClosing();
}
public void OnForm_Closing(object Sender,EventArgs e)
{
//your function;
}

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