C# 窗体点击关闭按钮时最小化到托盘

private void form1_FormClosing(object sender, FormClosingEventArgs e)
{
   if (e.CloseReason == CloseReason.UserClosing)
   {
       e.Cancel = true;
       this.Hide();
       TaskIcon.BalloonTipTitle = "分诊系统";
       TaskIcon.BalloonTipText = "程序还在继续运行......" + "\r\n" + "单击托盘图标还原窗口.";
       TaskIcon.ShowBalloonTip(2000);
   }
}