How to Refresh treeview in vb.net?

[maliksleo]

hi

i follow the following example

http://quickstarts.asp.net/QuickStartv20/util/srcview.aspx?path=~/aspnet/samples/ctrlref/navigation/TreeView/TreeView10.src

for treeview to populate ondemand. Now i want to refresh the treeview text when some one renames a folder. I tried every thing and failed kindly give me a solution for that. I am designing a file management system.

regards
maliksleo