Hello,

When I'm dragging a certain pane over another pane, I would like to hide the center indicator in order to prevent users to dock this way. 

For the moment, I only succeded in preventing the drop with this chunk of code (on the PaneDragOver event), which works well :

private void ultraDockManager1_PaneDragOver(object sender, Infragistics.Windows.DockManager.Events.PaneDragOverEventArgs e)

        {

            if (e.DragAction is AddToGroupAction)

            {

                e.IsValidDragAction = false;

                e.Cursor = Cursors.No;

            }

            if (e.DragAction is NewTabGroupAction)

            {

                if ((e.DragAction as NewTabGroupAction).Pane.Name.Contains("Navigateur") && e.Panes.Count > 0 && e.Panes[0].Name.Contains("Navigateur"))

                    return;               

                e.IsValidDragAction = false;

                e.Cursor = Cursors.No;

            }

            if (e.DragAction is NewSplitPaneAction)

            {

                e.IsValidDragAction = false;

                e.Cursor = Cursors.No;

            }

        }

The cursor is then showed as a crossed circle, preventing the drop.

But the users would prefer not to see the center indicator than see it disabled. Is there any way of hiding this control ? (only the center one, not the others)

Many thanks in advance,

Thomas