Creating extendable applications using MEF

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

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

Managed Extensibility Framework

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

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

External and Internal

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

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

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

[Export] I have something to offer

[Import] I need something

Catalog I know about some exports

Container I know about everything

DEMO HELLO WORLD

DEMO MEFUNIT

DEMO FROM 2.0 TO MEF

DEMO BEYOND 3RD PARTY ADDINS

DEMO BEING SELECTIVE

DEMO ASP.NET MVC AND MEF

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

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

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

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

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Creating extendable applications using MEF

by Ben Hall

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