[Closed] expanding a .net treeview node

hi,
ive had a look around in the methods and the forum but i couldnt find a way to expand a treeview node manually.

lets say im displaying a folder tree ina treeview inside a mxs rollout and the node.tag.value(s) contain the paths how would i go about expanding node x by given path on i.e. a buttonPress so that it calls the afterexpand handler from the treeview?

thx for the interest