[Solved] Collapsing and expanding nodes via webservice after Server-side populate creates duplicate records

[Chuck Conway]

I'm binding nodes on the server. These nodes can consist of multiple levels. On the client the tree is rendered expanded. When I collapse and re-expand a parent node, it calls the web service populating it's children. This creates duplicate records. Is there a way to prevent the web service call from populating duplicate records?

Thanks,

Chuck

[Schlurk]

Exactly how are you populating the nodes on the server? It would seem as if there might be something that is causing the TreeView to look for further data when an item is expanded. Perhaps if you look into the Load-on-demand demo you can see if you are perhaps doing anything similar to it which would cause you to re-bind the same data as before.