After creating the LINQ to SQL classes as described on P 113, when I try to create the Domain Service Class (UserInformationService) on P 114 the new data context does not appear in the list of available data contexts.

I have tried different projects, VB, C#, different computers, the result is the same.

Wondering if anyone else has seen this issue and knows how to fix it.

Thanks.

The answer is that a separate download is required -- the RIA Services Toolkit. The standard Silverlight and RIA installation does not install the LinqToSql Domain Context, the toolkit does this.

http://www.microsoft.com/downloads/d...displaylang=en

Yes after the final release MS moved some things into an RIA Services Toolkit download. I believe I put this in the errata page but I will double check.

I apologize for this but many changes were made by MS after the book had already been released. Unfortunately many of those changes seemed to be breaking changes with regards to namespaces and things like this RIA Services Toolkit.

Please let me know if you run into any other issues!

Thanks
Nick Lecrenski
Author