Treeview auto expand on postback asp.net 2.0

[Anders]

Hi

I have a singlepage design (non-frame) so the whole page is refreshe on
postback.

I have a treebiew filled from a site.map. Works fine. But on every postback
every single node in
the treeview is expanded (!). The desired behavoir would be that i
remembered the expand/collaps state
on post back. Is that possible?

Regards
Anders, Denmark