C# WinForm 如何实现窗体的关闭时温馨提示

实现窗体的关闭时提示，在窗体类中重写FormClosing事件：

具体代码如下

  private void Form1_FormClosing(object sender, FormClosingEventArgs e)

        {

            DialogResult dr;

            dr = MessageBox.Show("确认退出吗","确认对话框",MessageBoxButtons.YesNo,MessageBoxIcon.Question,MessageBoxDefaultButton.Button2 );

            if (dr == DialogResult.Yes)

            { }

            else

            {

                e.Cancel = true;

            }

        }