OData Roadmap: Exposing Any Data Source as an OData service

Play OData Roadmap: Exposing Any Data Source as an OData service

The Discussion

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    Rasmus Christensen

    This video often fails to download or play!

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    Same here...its not playing for me. refreshed many times

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    I get no sound.

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    Michael Johnson

    I call shenanigans!! I've done everything in his demo up to the first time he runs the project with one difference. I used the .net framework 4.0 System.Data.Services and System.Data.Services.Client. He mentioned that you could use those instead of the CTP versions. He used the CTP versions which I tried also but the toolkit references the .net 4.0 versions of those assemblies and causes a namespace collision and thus won't compile. When I run the project with the .net 4.0 assemblies reference, I get a 500 server error that indicates I should go to weblogs for more information. I have set all of my unhandled exceptions of stop to gain some kind of insight on the problem. Has any body gotten this to work!!

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    Sorry to hear you're having some issues. First off: the toolkit assemblies that are publically available are built against .NET 4. They can be used with the new CTP (as I did at MIX), but you'd have to download the source from Codeplex and rebuild them against those assemblies. I didn't actually use any OData v3 features in the session, so my use of the CTP was pretty superflous.

    The 500 error you're getting is a generic WCF error and could be from anything, and it's vague nature isn't because of the toolkit, that's a behavior of WCF. If you add the following attribute to your service, you should see a better error message:


    Feel free to ping me if you continue having issues.


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    Michael Johson

    OK ... I un-call shenanigans!!

    I'm hugh WCF newby!! I was really excited by you presentation and wanted to try this out.

    The problem was in the step where you set [DataServiceKey("Id")]. You were saying you like to override with a lower case id. I unfortunately typed "id".

    Your ServiceBehavior yielded a message that pointed to the problem!!


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    Anyone get this to work ? Paging doesn't work like it does in the video (my ODataQueryOperation SkipCount and TopCount are always 0) and if I get source from the codeplex and use that assembly I don't get v3. Interesting. Perhaps a link to a working demo project? That would be excellent!

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    Did you set a page size for the entity set you want to page? Without doing that, SkipCount and TopCount won't be enabled. It's a bug that needs to be fixed.

    As far as the v3 part, that is because I was using the CTP version of WCF Data Services in the demo, while the toolkit code on Codeplex isn't.

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    I am downloading the video, looks like it will take 2 hours.

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