Hi Terry Foster,
In order to prevent the collapsing of the first level items, you can handle the PreviewCollapsed
event of the RadTreeView
as I have demonstrated in the attached project.
Hiding the expander icon could be done via the ExpanderStyle
property of the RadTreeView.
You can check out his article showing the way to use it
The bad news is that the property applies to all of the RadTreeViewItems.
However, we have logged this as a feature request in our PITS system http://www.telerik.com/support/pits.aspx#/public/silverlight/2394
where you can vote for it.
Also, we don`t understand what you mean with "save some real-estate at the same time (all within the same RadTreeView control)", so can you elaborate more on this?
Please feel free to ask if you need more info. We would be glad to help you.
the Telerik team
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