Form有Un_Load事件吗？

[weisai]

我想在我点击了关闭Form的那个叉时，做一些动作。在VB里好像有这事件，C# 里有没有？

[weisai]

帮帮忙啊

[erictang2003]

在关闭窗体时发生。Closing 事件;
关闭窗体后发生。 Closed 事件;

[zhhahuatian]

up

[weisai]

我的意思是比如我点了叉后,就会弹出一MessageBox问是否要保存文件,在C#里怎么做

[erictang2003]

this.Closing += new System.ComponentModel.CancelEventHandler(this.Form_Closing);

private void Form_Closing(object sender, System.ComponentModel.CancelEventArgs e)
{
if( !CreateMyForm( "请问是否要保存?" )
//保存CODE
else
//不保存CODE
}

bool CreateMyForm(string formTitle){
bool result = false;
System.Windows.Forms.Form form1 = new System.Windows.Forms.Form();
form1.Text = formTitle;
form1.MaximizeBox = false;
form1.MinimizeBox = false;
form1.AutoScale = false;
form1.ClientSize = new System.Drawing.Size(190, 50);
System.Windows.Forms.Button button1 = new System.Windows.Forms.Button();
button1.Cursor = System.Windows.Forms.Cursors.Hand;
System.Windows.Forms.Button button2 = new System.Windows.Forms.Button();
button2.Cursor = System.Windows.Forms.Cursors.Hand;

button1.Text = "保存";
button1.Location = new System.Drawing.Point (10, 10);
button2.Text = "不保存";
button2.Location
= new System.Drawing.Point( button1.Right+10,10 );
button1.DialogResult = DialogResult.OK;

button2.DialogResult = DialogResult.Cancel;

form1.FormBorderStyle = FormBorderStyle.FixedDialog;
form1.AcceptButton = button1;//
form1.CancelButton = button2;
form1.StartPosition = FormStartPosition.CenterScreen;

form1.Controls.Add(button1);
form1.Controls.Add(button2);

form1.ShowDialog();

if(form1.DialogResult == DialogResult.OK){
result = true;
this.Cursor = System.Windows.Forms.Cursors.AppStarting;
}else{
result = false;
this.Cursor = System.Windows.Forms.Cursors.AppStarting;
}
form1.Dispose();
return result;
}

[weisai]

晕，我的好好看看。

[weisai]

可以了，谢谢，可以说说
this.Closing += new System.ComponentModel.CancelEventHandler(this.Form_Closing);
的意思吗

[lxcc]

委托:简单的说就是Closing操作映射到Form_Closing过程

[weisai]

学习

[chenyu001]

就是FORM关闭时的事件

和unload差不多

[weisai]

那如this.Closing += new System.ComponentModel.CancelEventHandler(this.Form_Closing);
一般是放在什么地方。我对委托一窍不通。

[zxfox]

就是事件的代理啦.