Hi.. I have a large 'flat' file like this... I need to create a tree with the appropriate hierarchy... How can I accomplish this in the best way.
I can group on FRUITS and VEG ... but what's the best way to build' the child nodes ?    thanks in advance

FRUITS    APPLE
FRUITS    PEAR
FRUITS    ORANGES
FRUITS    LEMONS
VEG         CARROTS
VEG         PUMPKIN


FRUITS ---
                ---- APPLE
                ---  PEAR
                ---  ORANGES

VEG --
                -- CARROTS
                -- PUMPKINS

Hi Jon The Nerd,

Please take a look at the following section in our online help :"Populating with Data":
http://www.telerik.com/help/silverlight/radtreeview-populating-with-data-databinding-overview.html

Here you can find how to populate a RadTreeView using different binding strategy.
It seems like a good derision would be to choose Binding to XML.
Here is another example of how to use HierarchicalTemplate :
http://demos.telerik.com/silverlight/#TreeView/HierarchicalTemplate

I hope that this will help you.

Kind regards,
Boryana
the Telerik team

FWIW - I would have loved a sample for this question. 
This is a very common SQL view result set that would be a great example to see in a treeview properly.

Hello Jon,

Please take a look at this blog post bellow and let me know if it helps.

Populating Silverlight TreeView from WCF Service with LINQ to SQL

Best wishes,
Kiril Stanoev
the Telerik team