DesignTime data not showing in Blend when bound against CollectionViewSource

Question

I have a datatemplate for a viewmodel where an itemscontrol is bound against a CollectionViewSource (to enable sorting in xaml).

Answer 1

Been there done that (now at least) :)

This is the solution I've found. The trick is to override the source for the CollectionViewSource designtime. I use the d:DesignSource property to use another static resource designtime: