Designing WebControls

I'm about to start work on a TreeView WebControl. I have worked on one in the past and worked on a cascading dhmenu control also. Unfortunatly, I had a bad crash awhile back and lost the code I had built up from then.

Anyway, I remeber having trouble getting the NodeCollection to store at design time. I can't remember exactly what was happening and I've got a lot of typeing to do before I get back to that point, but I think I was having a problem getting the Child Control/Node/Button to add the needed nested xml/html to represent the control. I had custom designers and collection editors then and I am going to have to recreate all these before I get close to having the problem agian, but if anyone has any suggestions, tips, extra, extra

Please post.