Comment Feed for Channel 9 - Injecting MVC with MEF 2 in 2 Minutes http://ak.channel9.msdn.com/ch9/144a/c074176a-0924-4ca6-a0e8-e0b3be67144a/InjectingMVCWithMEFIn2Minutes_220.jpg Channel 9 - Injecting MVC with MEF 2 in 2 Minutes If you've wondered how to make sense of the alphabet soup and options available for Dependency Injection and Inversion of Control (DI/IoC) as well as how the Managed Extensibility Framework (MEF) can help you solve these problems, check out this screencast. In two minutes, you'll have a fully functioning DI/IoC-driven MVC site using MEF 2.0. In this video, you'll see how you can get MEF running in an ASP.NET MVC site and how to successfully decouple the controller layer from the service infrastructure and allow for reuse of the service layer across multiple controllers. The Microsoft.MEF.CompositionProvider NuGet package put forth by the MEF team makes MEF an irresistible DI/IoC option for MVC developers. Let Brady Gaster show you how to inject your MVC site using Visual Studio 11 and MEF 2.0 and quickly have more SOLID code. en Tue, 21 May 2013 07:55:56 GMT Tue, 21 May 2013 07:55:56 GMT Rev9 Re: Injecting MVC with MEF 2 in 2 Minutes Great video!  However, MEF stands for Managed Extensibility Framework, not Microsoft Extensibility Framework. Smiley

posted by dsplaisted

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634679634612582245 Wed, 21 Mar 2012 21:51:01 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634679634612582245 dsplaisted Re: Injecting MVC with MEF 2 in 2 Minutes Very nice!  I like the dancing cursor and MEF too!

posted by mouhamf

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680035906630821 Thu, 22 Mar 2012 08:59:50 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680035906630821 mouhamf Re: Injecting MVC with MEF 2 in 2 Minutes LOL--cursor dancing to Grapes!

I've always found MEF (and DI/IOC)  to be ironic. 

It's useless until you need it, then it's indispensible!

posted by m1erickson

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680130159395416 Thu, 22 Mar 2012 11:36:55 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680130159395416 m1erickson Re: Injecting MVC with MEF 2 in 2 Minutes @dsplaisted: typo fixed!

posted by bradygaster

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680164530538769 Thu, 22 Mar 2012 12:34:13 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634680164530538769 bradygaster Re: Injecting MVC with MEF 2 in 2 Minutes Love the music idea instead of someone talking over the video "blah blah blah", i think it adds a nice creative style and lets you focus on the content which speaks for itself. Good work, i really hope you make more of these!

posted by LyalinDotCom

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681176800157755 Fri, 23 Mar 2012 16:41:20 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681176800157755 LyalinDotCom Re: Injecting MVC with MEF 2 in 2 Minutes Very cool, I had never thought about using MEF for IoC. Does anyone know how it performs under heavy load compared to Unity? I've noticed that Unity isn't the fastest container on the block...

posted by paul_dubya_eye

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681184083849964 Fri, 23 Mar 2012 16:53:28 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681184083849964 paul_dubya_eye Re: Injecting MVC with MEF 2 in 2 Minutes @DmitryNYC: Thanks so much! I hope I do too!

posted by bradygaster

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681186116375141 Fri, 23 Mar 2012 16:56:51 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681186116375141 bradygaster Re: Injecting MVC with MEF 2 in 2 Minutes posted by Curtis Gibeaut

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681324908863576 Fri, 23 Mar 2012 20:48:10 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634681324908863576 Curtis Gibeaut Re: Injecting MVC with MEF 2 in 2 Minutes Does anyone know what this music is ?

posted by MariuszGorzoch

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683383570818443 Mon, 26 Mar 2012 05:59:17 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683383570818443 MariuszGorzoch Re: Injecting MVC with MEF 2 in 2 Minutes Sorry... got it Smiley (found it on the end = http://ccmixter.org/files/grapes/16626 )

posted by MariuszGorzoch

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683387018254368 Mon, 26 Mar 2012 06:05:01 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683387018254368 MariuszGorzoch Re: Injecting MVC with MEF 2 in 2 Minutes @Curtis Gibeaut: MEF has a few mechanisms for differentiating between implementations of an interface.

The simplest is to use names - there's an example here: http://blogs.msdn.com/b/bclteam/archive/2011/11/03/overriding-part-registration-conventions-with-the-mef-attributes-nick.aspx

Beyond simple naming you can also apply and consume export metadata, e.g. see: http://devlicio.us/blogs/derik_whittaker/archive/2010/03/06/providing-metadata-to-you-mef-exports.aspx.

Hope this helps!

Nick

posted by nblumhardt

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683801924895040 Mon, 26 Mar 2012 17:36:32 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683801924895040 nblumhardt Re: Injecting MVC with MEF 2 in 2 Minutes Wow, I like magic as much as the next guy, but can any one point me to where this is all getting wired up? I dont see any configuration in Web config, or anything in Global.asax to wire anything up. Where is all of this hidden?

thanks

Noel

 

posted by nanderto

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683938346025671 Mon, 26 Mar 2012 21:23:54 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683938346025671 nanderto Re: Injecting MVC with MEF 2 in 2 Minutes @nanderto: I just found this post, about half way down is the topic "Composition provider for ASP.NET MVC" which explains that the interfaces need to be in the Parts folder.

http://blogs.msdn.com/b/bclteam/archive/2011/10/27/what-s-new-in-mef-version-2-preview-4.aspx

posted by nanderto

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683951962775498 Mon, 26 Mar 2012 21:46:36 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634683951962775498 nanderto Re: Injecting MVC with MEF 2 in 2 Minutes Brady, loving the posts! You're doing a great job.

I recall listening to a podcast a few years ago that had Glenn Block stating MEF was not trying to replace other IoC containers. I actually wrote it off as something that was cool but generally overkill for the small scale projects that I do. I think the podcast was Herding Code and do realize it was a few years ago and things change fast.

It seems even simpler than Ninject, which I've been using based on it's own simplicity, but is MEF not overkill for simple internal decoupling?

Is it just as simple for MEF to do injection patterns other than constructor injection? Specifically property setter injection?

Thanks, and keep up the good work!

posted by nickspiers

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634684495010678081 Tue, 27 Mar 2012 12:51:41 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634684495010678081 nickspiers Re: Injecting MVC with MEF 2 in 2 Minutes @nickspiers: Having one of those "not worthy" moments, man! Thanks for the amazingly supportive comments. I'm honestly thinking of making a series out of these. You guys thing that'd be a good thing? A "how to with MEF" screen cast series?

posted by bradygaster

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634685171733456424 Wed, 28 Mar 2012 07:39:33 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634685171733456424 bradygaster Re: Injecting MVC with MEF 2 in 2 Minutes @nickspiers: I'm pretty sure MEF supports all the features you're asking about. One of the other comments from above, by Nicholas Blumhardt, was made by one of the folks responsible for MEF 2. He would definitely have some good examples out there on using it. mef.codeplex.com has some awesome resources on using the new implementation, too. It has a fluent or attribute-based wire-up methodology. 

posted by bradygaster

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634685465044484573 Wed, 28 Mar 2012 15:48:24 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634685465044484573 bradygaster Re: Injecting MVC with MEF 2 in 2 Minutes Great job Brady!

Keep spreading the MEF love!

posted by gblock

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634694742985758433 Sun, 08 Apr 2012 09:31:38 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634694742985758433 gblock Re: Injecting MVC with MEF 2 in 2 Minutes @bradygaster

Just used it in a project and I'm sold! Thanks!

posted by nickspiers

]]> http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634699056541528485 Fri, 13 Apr 2012 09:20:54 GMT http://channel9.msdn.com/posts/Injecting-MVC-with-MEF-2-in-2-Minutes#c634699056541528485 nickspiers