When you're developing a XAML based composite application using Prism and regions, you may have encountered a rather frustrating problem when dealing with the shell, or regions who act as shells/dashboards at design time.
This project provides an example and method to load a view and its associated view model into a containing region so that you can get see how a child view will look in its parent container at design time.
For a full description on this project, please see the full article.