public void AddComputerSetting() { if (!panel1.Controls.Contains(computer)) { computer.RBS += Computer_RBS; computer.SetIp(device.DeviceName); computer.OnRoomChanged += Computer_OnRoomChanged; if (!string.IsNullOrEmpty(device.DeviceMac)) { computer.SetMac(device.DeviceMac); } computer.Dock = DockStyle.Fill; panel1.Controls.Add(computer); //updtate on 20200402 computer.Show(); } else { computer.Show(); } }