VBUG4Thought - Building an AppMarket with the Managed Extensibility Framework
Yesterday I presented at
VBUG4Thought which was VBUG's annual spring conference.
It was a really enjoyable day in a fantastic location with some great speakers (Eric Nelson, Hadi Hariri, Jon Skeet, Gill Cleeren and Dave Sussman).
I hosted a talk entitled "Experiment: Building an AppMarket with the Managed Extensibility Framework (The MEF) and .NET 4.0". I had a lot of fun and hopefully demonstrated how great I think The MEF is :)
Unfortunately my final demo blew for some unknown reason. I'm still not sure what went wrong because everything worked fine after a reboot and without touching a line of code (no, really! I'm not lying!).
Having played around since I think my WcfSvcHost was just being incredibly slow to get started and if I'd have had a little more patience with it the demo would have worked fine. Oh well. Why not try it for yourself?
Here's the code and slide decks:
Remember - this is just
demoware and a bit of fun. There was a lot of stuff we didn't take seriously during the exercise (like Security!).
Toward the end Jon Skeet (I was tempted to ask for his autograph :) suggested integrating the reactive extensions to do the file watching for the recomposition. We'll follow up with an example.
Thanks again
Post By
Josh Twist
04:33
30 Apr 2010
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Comments:
Posted by
Dave Lowe
@
02 May 2010
02:37
Hi Josh,
I was at VBUG and was very impressed with your demo - just downloaded it and it works like a charm. Just got to think of something to cool do with MEF now.
Thanks
Dave
Posted by
josh
@
03 May 2010
10:59
Cool.
Once you slip into the MEF groove you'll see opportunities all over the place :)
Posted by
Tad
@
06 May 2010
12:25
Hey Josh, this is FASCINATING stuff! Say.. can't figure out why Contoso.Pong, Fabrikam.Electionomotron, Fabrikam.Fakebook DLLs aren't being loaded, probably compiled with a different AppMarket.Contracts. Any idea where I can get the source for those?
Posted by
Ido Ran
@
30 Jun 2010
11:36
Hi,
The presentation link is broken, hope it will be fixed soon.
Thank you,
Ido
Posted by
Josh
@
01 Jul 2010
05:12
Hi Ido,
That was down to the MIME type being lost following a recent migration at my hosting folk (not impressed with them, it has to be said). Thanks for calling it out - should be working now.
Ta
Josh
Posted by
Ido Ran
@
01 Jul 2010
09:24
Hi, Thanks - It's working great.
That is interesting combination to use WPF with MEF - really close to WPF with DI (like you said).
I think the .NET community should try to learn from the Java community - both the successes and the failures, and this will help to decide what to do next.
I'm using super-simple IoC container in my application and it does the trick for now, but I do look for ways to improve and MEF is looking promising.
Thank you for the post, presentation and the code,
Ido