Dim tmp_DockHost As NDockingPanelHost = DirectCast(current_active_DockManager.RootContainer.RootZone.Children(1), NDockingPanelHost)
tmp_DockHost.AddChild(t_panel)


I want to add new panel to the same host of currently active panel.
However, i could not get to currently activepanel, and PanelHost.

I tried DockManger.activePanel but it return null.