[Gtk-sharp-list] Synchronized scroll

[Elmar Haneke]

I do have two TreeView which should scroll verticalli in sync but only
one should scroll horizontally.

I did plave each of them into an ScrollWindow.

Changes in Scrollbar position are propagated within the ValueChanged event.

This seems to work well.

How can I hide the vertical scrollbar of the left TreeView - one
scrollbar should be enough.

Elmar