loading and displaying children on parent node expand action

[Alex]

Hi,

I have a collection of objects. I bind the collection to you TreeView. At the moment I get a top node from the DB, which has a parameter hasChildren. If it is true I add an empty child to parent's child collection. Then on expand of the parent node I want to load and display its children.

At the moment when I expand I get and add children, but parent node only has one empty node. So the datasource does not get updated. Any idea what is going wrong? Are there a better way to do this?

Thanks,

Alex

[Alex]

I found the answer here http://www.telerik.com/community/forums/silverlight/treeview/observablecollection-and-loadondemand.aspx

[Tina Stancheva]

Hi Alex,

We are glad that you found what you needed. Still I will paste a few more intresting links related to the LoadOnDemand feature of the RadTreeView that might help.

LoadOnDemand demo
LoadOnDemand help article

If you need more info, please let us know.

All the best,
Tina Stancheva
the Telerik team