Creating extensible application using MEF

@Ben_HallBen@BenHall.me.ukBlog.BenHall.me.uk

Agenda

• MEF ABCs• Extensibility in .Net 2.0• Extensibility with MEF• MEF Internally

Managed Extensibility Framework

Internal and External

MS-PL

[Export]

I have something to offer

[Import]

I need something

Catalog

I know about some exports

Container

I know about everything

HELLO WORLDDEMO

LIFE IN 2.0DEMO

LIFE WITH MEFDEMO

BEYOND 3RD PARTY ADDINSDEMO

BEING SELECTIVEDEMO

Visual Studio 2010

In summary...

Summary

• Need to compose parent for child imports to be populated

• Allows externals to hook-in• Allows internals to be decoupled• Override your built in defaults• Part of .Net 4.0 • Available today from Codeplex

Ben HallBen@BenHall.me.ukBlog.BenHall.me.uk

Thank you

Resources

• http://blog.BenHall.me.uk• http://www.codeplex.com/mef• http://blogs.msdn.com/gblock

Flickr Images

• http://www.flickr.com/photos/m0php/530526644/• http://www.flickr.com/photos/dunechaser/

2918021174/• http://www.flickr.com/photos/

mag3737/1914076277/• http://www.flickr.com/photos/

25501212@N05/2934269081/• http://www.flickr.com/photos/zen/2273186263/• http://www.flickr.com/photos/leon_homan/

2856628778/