MissionPlanner.Controls.MainSwitcher.ShowScreen C# (CSharp) Method

        public void ShowScreen(string name)
        {
            if (current != null && current.Control != null)
            {
                // hide current screen
                current.Visible = false;

                // remove reference
                MainControl.Controls.Remove(current.Control);

                if (current.Control is IDeactivate)
                {
                    ((IDeactivate)(current.Control)).Deactivate();
                }

                // check if we need to remove the current control
                if (!current.Persistent)
                {
                    // cleanup
                    current.Control.Close();

                    current.Control.Dispose();

                    current.Control = null;

                    GC.Collect();
                }
            }

            if (name == "")
                return;

            // find next screen
            Screen nextscreen = screens.Single(s => s.Name == name);

            // screen name dosnt exist
            if (nextscreen == null)
                return;

            // screen control is null, create it
            if (nextscreen.Control == null || nextscreen.Control.IsDisposed)
                CreateControl(nextscreen);

            MainControl.SuspendLayout();
            nextscreen.Control.SuspendLayout();

            nextscreen.Control.Location = new Point(0, 0);

            nextscreen.Control.AutoScaleMode = AutoScaleMode.None;

            nextscreen.Control.Size = MainControl.Size;

            nextscreen.Control.Dock = DockStyle.Fill;

            MissionPlanner.Utilities.Tracking.AddPage(nextscreen.Control.GetType().ToString(), name);

            if (nextscreen.Control is IActivate)
            {
                ((IActivate)(nextscreen.Control)).Activate();
            }

            if (ApplyTheme != null)
                ApplyTheme(nextscreen.Control);

            if (MainControl.InvokeRequired)
            {
                MainControl.Invoke((MethodInvoker)delegate
                {
                    MainControl.Controls.Add(nextscreen.Control);
                    nextscreen.Control.ResumeLayout();
                    MainControl.ResumeLayout();
                });
            }
            else
            {
                MainControl.Controls.Add(nextscreen.Control);
                nextscreen.Control.ResumeLayout();
                MainControl.ResumeLayout();
            }

            nextscreen.Control.Refresh();

            nextscreen.Visible = true;

            current = nextscreen;

            current.Control.Focus();
        }

        public Wizard()
        {
            instance = this;

            InitializeComponent();

            Utilities.ThemeManager.ApplyThemeTo(this);

            config.Clear();

            wiz_main = new MainSwitcher(this.panel1);

            wiz_main.AddScreen(new MainSwitcher.Screen("Intro", new _1Intro(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("FrameFW", new _2FrameFW(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("Connect", new _3ConnectAP(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("FrameType", new _4FrameType(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("AccelCalib", new _5AccelCalib(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("CompassCalib", new _6CompassCalib(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("BatteryMonitor", new _7BatteryMonitor(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("OptionalAC", new _8OptionalItemsAC(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("OptionalAP", new _8OptionalItemsAP(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("Radio Calib", new _9RadioCalibration(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("Flight Modes",new _10FlightModes(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("Verify", new _11Verify(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("Failsafe", new _12FailSafe(), true));
            wiz_main.AddScreen(new MainSwitcher.Screen("GeoFence", new _13GeoFence(), true));

            wiz_main.AddScreen(new MainSwitcher.Screen("DontForget", new _98DontForget(), true));

            if (MainV2.comPort.BaseStream.IsOpen)
            {
                if (MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.FIXED_WING)
                {
                    wiz_main.ShowScreen("AccelCalib");
                }
                else if (MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.HELICOPTER ||
                      MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.HEXAROTOR ||
                      MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.OCTOROTOR ||
                      MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.QUADROTOR ||
                      MainV2.comPort.MAV.aptype == MAVLink.MAV_TYPE.TRICOPTER)
                {
                    wiz_main.ShowScreen("FrameType");
                }
                else
                {
                    wiz_main.ShowScreen("Intro");
                }
            }
            else
            {
                wiz_main.ShowScreen("Intro");
            }

            history.Add(wiz_main.current.Name);

            progressStep1.Maximum = wiz_main.screens.Count + 1;
            progressStep1.Step = 1;
        }