How do I keep my TreeView expansion

[Tonyz289]

I have a treeview that is expanded but the second I do anything on the page the Treeview goes back to its unexpanded state. How do I prevent this from happening?

[Shinu]

Hello Tony,

Check the following code library which explains how to persist TreeView expanded state.
Save the expanded state of the TreeNodes when the treeview is being bound upon each postback.

Thanks,
Shinu.