C#中panel 双击问题

Question

视频监控中 
C#中双击一个四分屏的panel中的任意一屏   
如何变成单屏（只显示一个画面，可以放大将其他三个盖住，也可以直接跳转到一分屏）再双击恢复四分屏显示。
求源码高手。

Answer 1

所有panel的doubleclick指向同一个事件，双击时，sender就是点击的panel，然后你遍历那4个，判断不是sender的就隐藏

Answer 2

说的太高级了 怎么写啊
我是俩panel  一个小的在下面。
小panel private void panBack_Paint(object sender, PaintEventArgs e)
        {
            ControlPaint.DrawBorder(e.Graphics,
                               e.ClipRectangle,
                               Color.Lime,
                               3,
                               ButtonBorderStyle.Solid,
                               Color.Lime,
                               3,
                               ButtonBorderStyle.Solid,
                               Color.Lime,
                               3,
                               ButtonBorderStyle.Solid,
                               Color.Lime,
                               3,
                               ButtonBorderStyle.Solid);
        }
大panel
   private void panel_Click(object sender, EventArgs e)
        {
            Panel panel = (Panel)sender;
            panBack.Location = new Point(panel.Location.X - 3, panel.Location.Y - 3);
            panBack.Size = new Size(panel.Width + 6, panel.Height + 6);
            panBack.Tag = null;
            panBack.Tag = panel.Name.Trim();
            panBack.SendToBack();           
        }