事件路由

private void btn_Click(object sender, EventArgs e)
{
     Button btn = sender as Button;        
     switch (btn.Text.ToString())
     {
        case "确定":
            MessageBox.Show("我是确定按钮");
            break;
        case "取消":
            MessageBox.Show("我是取消按钮");
            break;
     }
}