退出程序时进行确认提醒

退出程序时进行确认提醒:
        private void 当前窗体类名t_FormClosing(object sender, FormClosingEventArgs e)
        {
            //下面是确认退出代码
            DialogResult result;
            result = MessageBox.Show("确定退出吗？", "退出", MessageBoxButtons.OKCancel, MessageBoxIcon.Question);
            if (result == DialogResult.OK)
            {
                //Application.ExitThread();
                e.Cancel = true;
            }
            else
            {
                e.Cancel = true;
            }
        }