How to build extensible Silverlight

application using MEF

Radenko Zec – Software Development Consultant at Lanaco d.o.o

http://blog.developers.ba

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

What’s MEF, Anyway?

MEF Component ExportImport MEF Component ExportImport

Composition

The key elements

How MEF works

Simple MEF - MVVM

demo

MEF VS IOC container

When to use MEF ?

Catalogs – Type, Aggregate, Directory, Deployment

Lazy load component's

Import many

Metadata tagging

Creation policies

ExportFactory

Custom attributes

ImportingContructor

CompositionContainer

Recomposition

Allow default

demo