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How to avoid tab selection in TabbedDockControls when dragging over mouse in unselected TabbedDockControl?

 

Unselected TabbedDockControl gets selected when dragging and dropping any element from the TabbedDockControl. This can be avoided using SelectedIndexChanging event of the embedded TabControl of the TabbedDockControl.

C#

private void dockingManager1_NewDockStateEndLoad(object sender, EventArgs e)

{

Syncfusion.Windows.Forms.Tools.DockHost dhost = this.panel1.Parent as Syncfusion.Windows.Forms.Tools.DockHost;

Syncfusion.Windows.Forms.Tools.DockHostController dhc = dhost.InternalController as

Syncfusion.Windows.Forms.Tools.DockHostController;

if (dhc.ParentController is Syncfusion.Windows.Forms.Tools.DockTabController)

{

Syncfusion.Windows.Forms.Tools.DockTabControl docktab = (dhc.ParentController as

Syncfusion.Windows.Forms.Tools.DockTabController).TabControl;

docktab.SelectedIndexChanging += new Syncfusion.Windows.Forms.Tools.SelectedIndexChangingEventHandler

(docktab_SelectedIndexChanging);

}

}

void docktab_SelectedIndexChanging(object sender, Syncfusion.Windows.Forms.Tools.SelectedIndexChangingEventArgs args)

{

if (flag ==false)

{

if (args.NewSelectedIndex == 0)

{

args.Cancel = true;

}

}

}

VB

Private Sub dockingManager1_NewDockStateEndLoad(ByVal sender As Object, ByVal e As EventArgs) Handles dockingManager1.NewDockStateEndLoad

Dim dhost As Syncfusion.Windows.Forms.Tools.DockHost = TryCast(Me.panel1.Parent, Syncfusion.Windows.Forms.Tools.DockHost)

Dim dhc As Syncfusion.Windows.Forms.Tools.DockHostController = TryCast(dhost.InternalController, Syncfusion.Windows.Forms.Tools.DockHostController)

If TypeOf dhc.ParentController Is Syncfusion.Windows.Forms.Tools.DockTabController Then

Dim docktab As Syncfusion.Windows.Forms.Tools.DockTabControl = (TryCast(dhc.ParentController, Syncfusion.Windows.Forms.Tools.DockTabController)).TabControl

AddHandler docktab.SelectedIndexChanging, AddressOf docktab_SelectedIndexChanging

End If

End Sub

Private Sub docktab_SelectedIndexChanging(ByVal sender As Object, ByVal args As Syncfusion.Windows.Forms.Tools.SelectedIndexChangingEventArgs)

If flag =False Then

If args.NewSelectedIndex = 0 Then

args.Cancel = True

End If

End If

End Sub

Sample:

http://websamples.syncfusion.com/samples/KB/Tools.Windows/KB_UnselectTabbed/main.htm

Article ID: Published Date: Last Revised Date: Platform: Control:
1795 04/30/2011 07/10/2014 WinForms DockingManager
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