RadExpanderControl can be integrated with DataBoundListBox and JumpList to create lists with master-details structured items similar to ExpandableListView. RadExpanderControl can determine whether it is situated in RadDataBoundListBoxItem and if yes it keeps track of the currently associated data item from the data source and associates its expanded/collapsed state with it. In this way, when you put a RadExpanderControl in a data template within DataBoundListBox it will persist its expanded/collapsed state in the context of the UI virtualization mechanism.
All the best,
the Telerik team