Hi,
It seems that the TreeViewAdv doesn't refresh correctly
when it is scrolled.
To reproduce it, i've join a project. Some items of the node
"Year Hierarchy" are not shown when the scrollbar is used.
The problem may be the same as described in:
http://www.syncfusion.com/support/forums/tools-wpf/77328/Bugs-in-the-TreeViewAdvThanks,
Puthirak OM
Reportive SA
TreeViewAdvScrolling_7610ea91.zip