HierarchicalDataTemplate Distinct leaves

Posted by miguel on Stack Overflow See other posts from Stack Overflow or by miguel
Published on 2010-04-12T21:04:15Z Indexed on 2010/04/12 21:12 UTC
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I have a set of data that is structured like this:

 ItemA.GroupA
 ItemB.GroupA
 ItemC.GroupB
 ItemD.GroupC

I need to present the data in a WPF Tree View like this:

GroupA

--- ItemA

--- ItemB

GroupB

--- ItemC

GroupC

--- ItemD

What XAML can I use to group the leaves by distinct value? For instance, there could be multple items in the collection which are GroupA.ItemA, however, I only want to present the node and leaf once.

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