WPF HiercharchicalDataTemplate.DataType: How to react on interfaces?

Question

Problem

I\'ve got a collection of IThings and I\'d like to create a HierarchicalDataTemplate for a TreeView. The straightfor

Answer 1

The reason for this is that the default template selector supports only concrete types, not interfaces. You need to create a custom DataTemplateSelector and apply it to the ItemTemplateSelector property of the TreeView. I can't find the URL where I found an example of it, but hopefully with this info, you can Google it.