ContentTemplateSelector is only called one time showing always the same datatemplate

Question

I have made a sample demo VS 2010 RC sample project, because in my production project I have the same error using MVVM.

In my sample demo project I use only Code-beh

Answer 1

I like Neil's solution (found on Josh's post via the link you provided):

Edit: I couldn't actually get the above code to work, but this works using a style: