The viewport band of the pan and zoom control disappears every time I change the active layer.
The property ViewportPreview.Band.ParentNode (which is an NviewLayer) becomes nothing after changing default layer and, being read only, I don't know how to reset it.
Even if the rubber band disappears the control continues working. If you drag inside the area of the (disappeared) band, the view pans.

Any help?
Thanks

Andrea