Wpf widget development

Question

I am looking for a design template, an open source platform, or what else can I use to develop a widget for wpf applications. I need to develop a host application that can load a predefined or custom widget, and this widget can interact with the host application or can interact with other widgets. The user can add a new widget without leaving the application or unloading it. Something like the web parts used by asp.net or SharePoint. I am looking for add-ons and extensibility in Net 4.0, but I'm not sure if this is true.

http://msdn.microsoft.com/en-us/library/bb384200.aspx

Answer 1

It sounds like the perfect use case for MEF .