C#...closing事件在哪改？找不到。。。

先谢谢不过能说具体点么
using System;
using System.IO;
using System.Windows.Forms;namespace WindowsApplication4
{
    public partial class login : Form
    {
        public string path,usr,pw,FILE_NAME,folder="";
        public int i;
        public login()
        {
            InitializeComponent();
        }        private void radioButton2_CheckedChanged(object sender, EventArgs e)
        {
            ipaddr.Enabled = true;
            usertext.Enabled = true;
            pwtext.Enabled = true;
        }        private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            ipaddr.Enabled = false;
            usertext.Enabled = false;
            pwtext.Enabled = false;
            ipaddr.Text = "";
            usertext.Text = "";
            pwtext.Text = "";
        }        private void loginc_Click(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
            {
                i = 0;
                path = "c:\\";
                FILE_NAME = path + "temp.vbs";
                create_vbs a = new create_vbs();
                a.pw = pw;
                a.path = path;
                a.ij = i;
                a.FILE_NAME = FILE_NAME;
                a.folder = folder;
                Visible = false;
                a.Show();
            }
            else if (radioButton2.Checked == true)
            {
                i = 1;
                path = "\\\\"+ipaddr.Text;
                usr = usertext.Text;
                pw = pwtext.Text;
                folder = "\\netlogon\\";
                if (ipaddr.Text == "" || usertext.Text == "" || pwtext.Text == "")
                {
                    MessageBox.Show("不能填入空值！");
                }
                else
                {
                    try
                    {
                        System.Diagnostics.Process.Start("net", " use " + path + " " + pw + " /user:" + usr);
                        FILE_NAME = path + "" + folder + "temp.vbs";
                        StreamWriter sr;
                        sr = File.CreateText(FILE_NAME);
                        sr.Close();
                        create_vbs b = new create_vbs();
                        b.pw = pw;
                        b.path = path;
                        b.ij = i;
                        b.FILE_NAME = FILE_NAME;
                        b.folder = folder;
                        Visible=false;
                        b.Show();
                    }
                                        catch (DirectoryNotFoundException)
                    {
                        MessageBox.Show("找不到文件夹"+folder);
                    }
                    catch (IOException)
                    {
                        MessageBox.Show("找不到网络路径" + path+"或用户名与密码错误");
                    }
                }
            }
        }        private void quit_Click(object sender, EventArgs e)
        {
            this.Close();
            Application.Exit();

        }
    }
}
找不到啊

在设计器界面上点击窗体,右键->属性->事件->FormClosing

private void Form1_FormClosing(object sender, FormClosingEventArgs e)
{  DialogResult diaresult = MessageBox.Show("确认退出吗？", "提示", MessageBoxButtons.YesNo, MessageBoxIcon.Warning);
  if (diaresult != DialogResult.Yes)
  {
     e.Cancel = true;
  }

}

这个问题不用添加事件处理，面是是采用重写基类方法就可以了，可以把如下的代码直接粘到窗体的代码里：protected override void OnFormClosing(FormClosingEventArgs e)
{
if (MessageBox.Show(this, "确定要关闭吗", "提示", MessageBoxButtons.OKCancel) != DialogResult.OK)
{
e.Cancel = true;
}
}

首先，你要确保你的FormClosing事件正常，然后入如果你想阻止关闭窗体的话，在事件体中加入如下语句即可e.Cancel = true;

太感谢了
不过为什么出是否退出的提示出3次呢过程是这样，LOGIN窗体-点确定-LOGIN隐藏（HIDE）-FORM2显示（SHOW）-FORM关闭-FORM1显示-这时按红叉已经不起作用了，用了hbxtlhx 的方法，自行在里面加入 application.exit();退出成功，不过提示按确定要出3次不解

Form.Hide他会执行Closing事件跟踪一下就知道了~~~~不知道你到底想干什么~~~~

在Closing中有个CloseReason
可以利用一下~~~~

调试易

C#...closing事件在哪改？找不到。。。

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