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[quote user="ColinBlair"]The number of people who are both able to code a custom DomainService for Datasets and willing to do so probably very small, and I don't think those people are working on the RIA Services team.[/quote]
Don't get me wrong, I'm not a big fan of the DataSet, just the NRS-entities look much like ...
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This version http://blogs.msdn.com/brada/archive/2009/07/28/business-apps-example-for-silverlight-3-rtm-and-net-ria-services-july-update-part-11-the-new-class-library-project.aspx demonstrates the Silverlight/Domain service split into two project. SuperEmployeesRIAServicesLibrary.Web is the domain services project. The client side project ...
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I was more in the order/orderlines mode: do a server side domain operation against an in memory orderline requiring the order header as well *during* order entry. I really see no way to implement this without triggering the save operation which I don't want at that point. And I don't want to copy the entity properties in some sort of ...
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Interesting comment from Nikhil on your blog:
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we look at entities as a flat set of lists, with associations that can be used to navigate, rather than define ownership or lifetime
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In that case: why isn't there a generic DataSet implementation by NRS? I mean we're talking about rows and relationships in that case, right?
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Am I the only one that needs a proper entity tree on the server instead of single entities?
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Have a look at http://blogs.msdn.com/vijayu/archive/2009/06/08/unit-testing-business-logic-in-net-ria-services.aspx. Basically you're not inheriting from L2S or EF domain services, but from a plain vanilla domain service.
But you can configure your solution in such a way that the web-project is clean, the domain services are in dedicated ...
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A .NET RIA Services showstopper for me is the inability to invoke a server side operation against an entity with it's associations.
This thread http://forums.silverlight.net/forums/p/109638/247849.aspx tells us to use a Query operation to return enties. This thread http://forums.silverlight.net/forums/p/117379/267271.aspx showed I ...
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It should work they way you have implemented it. It works fine in my demo in combination with a DataForm. Maybe another validation constraint is broken earlier? Try to add a simple string length constraint to see if you will see that one in the screen...
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Remember that the Load()-call triggers an asynchronous request to the web server. Pass a callback method in the Load()-method override and wait for the LoadOperation to complete. In the callback you should check the results....
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Have you tried turning autogeneratecolumns off and back on in the delegate?