You might find the Exercise 2 in the MEF Hands-On Lab of the
Prism Training Kit useful to learn more about how to use
View Discovery with MEF.
Inside Exercise 2's end solution, in the
Infrastructure Project you will find the ViewExportAttribute which is used to decorate views that you want to be registered on a specific region (View Discovery Approach). Take into account even it is a Silverlight Project, it could
be easily ported to a WPF application.
Additionally, you can read the following links of MSDN Prism Documentation:
Also, you can check the
Stock Trader Reference Implementation for an example of the usage of the aforementioned attribute in the context of a complex solution.
I hope you find this information useful.