>:)
>
>well, I still didn't do any work with treeviews on the web with .Net, so I don't know what's the best solution for it. However, as far as I know, one good choice for performance when reading XML documents in a forward-only and non-cached fashion is the XMLTextReader class.
>
>There's a Dan Wahlin's article about it in some CoDe issue (I don't remember from the top off my head which one...)...

I'm really wondering if the XMLTextWriter might be the best solution or not. The XML needed for the control really doesn't seem to be formatted in the standard fashion. For example it starts out like

< / TREENODE TEXT="Text to display"

(I've added the spaces so that the parser will overlook the tag)
How the entry terminates depends on whether or not it has any childred. If no children, then

/ >

terminates the node. If children are in involved then there are other possibilites.

Do a search in the MSDN library for "TREENODE TEXT" if you want to see examples.