How to Close the AutoHide Popup By Double-Clicking its TabStripItem

Environment

Product Version	Product	Author
2023.2.718	RadDock for WinForms	Dinko Krastev

Description

To auto-hide a ToolWindow, its pushpin icon needs to be clicked. This will cause the ToolWindow to auto-hide at the edge of the RadDock. By default, the AutoHideWindow is expected to show without even clicking on the auto-hide tab. However, clicking on the auto-hide tab while the AutoHideWindow is shown, will not close the popup. You will need to click somewhere else on the form and close the popup.

Solution

You can subscribe to several methods to interfere with the auto-hide logic and close the AutoHideWindow while clicking on its TabStripItem.

• C#
• VB.NET

    public partial class Form1 : Form
    {
        RadDock radDock1 = new RadDock();
        public Form1()
        {
            InitializeComponent();
            radDock1.Dock = DockStyle.Fill;
            this.Controls.Add(radDock1);
            ToolWindow topRightWindow = new ToolWindow();
            topRightWindow.Text = "Left Window";
            radDock1.DockWindow(topRightWindow, DockPosition.Left);

            ToolWindow bottomRightWindow = new ToolWindow();
            bottomRightWindow.Text = "Right Window";
            radDock1.DockWindow(bottomRightWindow, topRightWindow,DockPosition.Right);
            this.radDock1.DockStateChanged += RadDock1_DockStateChanged;
        }
        private void RadDock1_DockStateChanged(object sender, DockWindowEventArgs e)
        {
            if(e.DockWindow.DockState == DockState.AutoHide)
            {
                this.radDock1.AutoHideWindowDisplaying -= RadDock_AutoHideWindowDisplaying;
                this.radDock1.AutoHideWindowDisplayed -= RadDock_AutoHideWindowDisplayed;
                this.radDock1.AutoHideWindowHidden -= RadDock_AutoHideWindowHidden;
                e.DockWindow.AutoHideTab.MouseDown -= TabStripMouseDown;

                this.radDock1.AutoHideWindowDisplaying += RadDock_AutoHideWindowDisplaying;
                this.radDock1.AutoHideWindowDisplayed += RadDock_AutoHideWindowDisplayed;
                this.radDock1.AutoHideWindowHidden += RadDock_AutoHideWindowHidden;
                e.DockWindow.AutoHideTab.MouseDown += TabStripMouseDown;
            }
        }
        private bool shown = false;
        private bool cancel = false;
        private void RadDock_AutoHideWindowDisplaying(object sender, Telerik.WinControls.UI.Docking.AutoHideWindowDisplayingEventArgs e)
        {
            Console.WriteLine("Displaying " + shown);
            if (cancel)
            {
                e.Cancel = true;
            }               
        }
        private void TabStripMouseDown(object sender, MouseEventArgs e)
        {
            if (shown)
            {
                cancel = true;
                shown = false;
                this.radDock1.CloseAutoHidePopup();
            }
            else
            {
                cancel = false;
            }               
        }
        private void RadDock_AutoHideWindowDisplayed(object sender, DockWindowEventArgs e)
        {
            cancel = false;
            shown = true;
        }
        private void RadDock_AutoHideWindowHidden(object sender, DockWindowEventArgs e)
        {
            shown = false;
        }
    }

    Public Partial Class Form1
        Inherits Form
`
        Private radDock1 As RadDock = New RadDock()

        Public Sub New()
            InitializeComponent()
            radDock1.Dock = DockStyle.Fill
            Me.Controls.Add(radDock1)
            Dim topRightWindow As ToolWindow = New ToolWindow()
            topRightWindow.Text = "Left Window"
            radDock1.DockWindow(topRightWindow, DockPosition.Left)
            Dim bottomRightWindow As ToolWindow = New ToolWindow()
            bottomRightWindow.Text = "Right Window"
            radDock1.DockWindow(bottomRightWindow, topRightWindow, DockPosition.Right)
            AddHandler Me.radDock1.DockStateChanged, AddressOf RadDock1_DockStateChanged
        End Sub

        Private Sub RadDock1_DockStateChanged(ByVal sender As Object, ByVal e As DockWindowEventArgs)
            If e.DockWindow.DockState = DockState.AutoHide Then
                RemoveHandler Me.radDock1.AutoHideWindowDisplaying, AddressOf RadDock_AutoHideWindowDisplaying
                RemoveHandler Me.radDock1.AutoHideWindowDisplayed, AddressOf RadDock_AutoHideWindowDisplayed
                RemoveHandler Me.radDock1.AutoHideWindowHidden, AddressOf RadDock_AutoHideWindowHidden
                RemoveHandler e.DockWindow.AutoHideTab.MouseDown, AddressOf TabStripMouseDown

                AddHandler Me.radDock1.AutoHideWindowDisplaying, AddressOf RadDock_AutoHideWindowDisplaying
                AddHandler Me.radDock1.AutoHideWindowDisplayed, AddressOf RadDock_AutoHideWindowDisplayed
                AddHandler Me.radDock1.AutoHideWindowHidden, AddressOf RadDock_AutoHideWindowHidden
                AddHandler e.DockWindow.AutoHideTab.MouseDown, AddressOf TabStripMouseDown
            End If
        End Sub

        Private shown As Boolean = False
        Private cancel As Boolean = False

        Private Sub RadDock_AutoHideWindowDisplaying(ByVal sender As Object, ByVal e As Telerik.WinControls.UI.Docking.AutoHideWindowDisplayingEventArgs)
            Console.WriteLine("Displaying " & shown)

            If cancel Then
                e.Cancel = True
            End If
        End Sub

        Private Sub TabStripMouseDown(ByVal sender As Object, ByVal e As MouseEventArgs)
            If shown Then
                cancel = True
                shown = False
                Me.radDock1.CloseAutoHidePopup()
            Else
                cancel = False
            End If
        End Sub

        Private Sub RadDock_AutoHideWindowDisplayed(ByVal sender As Object, ByVal e As DockWindowEventArgs)
            cancel = False
            shown = True
        End Sub

        Private Sub RadDock_AutoHideWindowHidden(ByVal sender As Object, ByVal e As DockWindowEventArgs)
            shown = False
        End Sub
    End Class