MEF allows building extensible Silverlight applications by dynamically discovering, reusing, and composing components. It works by exporting components that other components can import, using attributes to define imports and exports. MEF supports features like catalogs, lazy loading, metadata tagging, and importing constructors to enable extensible applications where third-party extensions can be added without recompilation.

2. How to build extensible Silverlight
application using MEF
Radenko Zec – Software Development Consultant
at Lanaco d.o.o
http://blog.developers.ba

5. Evergreen Question
How to build .NET applications from
components that can be discovered, reused
and composed dynamically?
Many working solutions, but none specifically
targeted to general third-party extensibility

7. What’s MEF, Anyway?
MEF Component ExportImport MEF Component ExportImport
Composition

9. The key elements

10. How MEF works

11. Simple MEF - MVVM
demo

13. MEF VS IOC container

14. When to use MEF ?

15. Catalogs – Type, Aggregate, Directory, Deployment
Lazy load component's
Import many
Metadata tagging
Creation policies
ExportFactory
Custom attributes
ImportingContructor
CompositionContainer
Recomposition
Allow default
demo