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How to lock the docked windows on a form to prevent the layout of the form in WinForms Docking Manager?

Platform: WinForms |
Control: DockingManager

Dragallow event

You can handle the DockingManager’s DragAllow event for this purpose and set the DragAllowEventArgs’ Cancel property to True as shown below:

This will prevent the docking windows from being dragged and the GUI layout being changed accidentally.


private void dockingManager1_DragAllow(object sender,
Syncfusion.Windows.Forms.Tools.DragAllowEventArgs arg)
    arg.Cancel = true;



Private Sub dockingManager1_DragAllow(ByVal sender As Object, ByVal arg As
Syncfusion.Windows.Forms.Tools.DragAllowEventArgs) Handles dockingManager1.DragAllow
End Sub


Reference link: https://help.syncfusion.com/windowsforms/dockingmanager/docking-events#drag-events

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