winform 托盘

private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e)
{
    this.WindowState = FormWindowState.Normal;
    //若使用Hide()时，要用Show()方法显示窗体
}

private void MainForm_Resize(object sender, EventArgs e)
{
    this.ShowInTaskbar = this.WindowState != FormWindowState.Minimized;//最小化时不在任务栏显示
    //或者如下
    if (this.WindowState == FormWindowState.Minimized)   Hide();//最小时隐藏
}