Presentation model aggregates data from multiple entities in the data access layer. It is useful when you do not want to directly expose the entities in your data access layer to the client.
You should read these links:
I’ve implemented sample described here.
WCF RIA Services enables you to work with entities that are part of an inheritance hierarchy. This feature is supported only with Visual Studio 2010 and Silverlight 4.
Useful links:
My simple example (with entities from here):
Compositional hierarchy is very useful for people who need real parent/child hierarchies.
You can read about this new feature here:
I wrote a very long post about .NET Ria Services with 20 samples four months ago. In this series of posts I’ll describe WCF RIA Services presented at PDC. In this post, I’ll present 9 updated samples and VS 2010 design tools.
Business Application Demo
Silverlight Business Applications: Design tools
Server validation & resolving concurrency conflicts
Windows Authentication
A Https Enabled DomainService
DomainContext: cross-domain scenario
Loading Data from Related Entities
Silverlight Business Applications: Design tools
Multiple DomainContexts
WCF RIA Services Class Libraries
ASP.NET Dynamic Data integration
Other useful samples I have found
Useful links
Posts
