I have a TreeView using the TreeViewAdaptor and the page it is on does not seem to want to post back. When I click a "delete" LinkButton on a GridView row, I get the Javascript error "GetViewState__AspNetTreeView not defined". The adaptor code adds this into a script line that is called when the page is submitted but it is certainly not defined anywhere in JavaScript on the page.
I have found similar issues reported by others but none of the other fixes does anything for this problem. Is this a function that needs to be included from somewhere else or is it a framework type of function that should just work?
Thanks
Luke
Senior Software Developer
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