Very useful information. I spent hours today finding the response to this and how to pass parameters back in. Our situation is slightly different, and this solves the first half. I have a treeview with checkboxes. I need to pass back a parameter to specific the mode (edit/view) and when in edit mode I use the authenticated user ID to get a list of nodes they have selected and compare it with the nodes that I'm about to send back.
The problem is, using the web service method, how to I notify the treeview to set a box as checked from the web service? The
doesn't seem to have a property for checked.
Is there something that I'm missing?