1.
Creating extensible
application using MEF
@Ben_Hall
Ben@BenHall.me.uk
Blog.BenHall.me.uk

2.
Agenda
• MEF ABCs
• Extensibility in .Net 2.0
• Extensibility with MEF
• MEF Internally

3.
Managed Extensibility
Framework

4.
http://www.flickr.com/photos/leon_homan/2856628778/

5.
http://www.flickr.com/photos/zen/2273186263/

6.
External and Internal

7.
http://www.flickr.com/photos/mag3737/1914076277/

8.
MS-PL
http://www.flickr.com/photos/25501212@N05/2934269081/

9.
http://www.flickr.com/photos/dunechaser/2918021174/

10.
[Export]
I have something to offer

11.
[Import]
I need something

12.
Catalog
I know about some exports

13.
Container
I know about everything

14.
DEMO
HELLO WORLD

15.
DEMO
MEFUNIT

16.
DEMO
FROM 2.0 TO MEF

17.
DEMO
BEYOND 3RD PARTY ADDINS

18.
DEMO
BEING SELECTIVE

19.
DEMO
ASP.NET MVC AND MEF

20.
In summary...
http://www.flickr.com/photos/m0php/530526644/

21.
Summary
• Extensibility
• Allows 3rd parties to hook-in
• Allows internals to be decoupled
• Override your built in defaults
• Part of .Net 4.0
• Available today from Codeplex

22.
Thank you!
Twitter - @Ben_Hall
Blog.BenHall.me.uk
Ben@BenHall.me.uk

23.
Resources
• http://blog.BenHall.me.uk
• http://www.codeplex.com/mef
• http://blogs.msdn.com/gblock