I don't know if this is the right solution. I have the treeview in a modal window. I was able to get the treeview to scroll to the expanded node. But now that the height property is set, if the tree is expands vertically longer (or higher in height) than the property size, the user will have to use the scroll bar for the treeview AND the scroll bar of the RadWindow. Yes, the script scrolls the treeview position to the expanded node, but the user will still have to scroll the RadWindow down in order to see the nodes on the bottom.
I guess what I want is that the page loads with the PAGE scrolled to the expanded node without having to worry about the height of the treeview. Ideas?