I have XamOutlookBar inside a (dockable) window, and it is resizing together with that window. BUT, it is often possible to accidentally click on the OutlookBar's own (otherwise invisible) vertical splitter. After that OutlookBar does not resize with the container anymore.
Is there a way to completely disable that vertical slitter?
Setting VerticalSplitterWidth="0.0" seams to do the trick.
I found that the default value of that property was 2.0.
You could also set the IsVerticalSplitterVisible to false.