This CTP contains updates to the ADO.NET Entity Framework since the Visual Studio Codename "Orcas" Beta 1 release, including changes in Object Services, Query, Entity Client, and the Entity Data Model Wizard in Visual Studio. Some of the new features include IPOCO, detaching from long-running ObjectContext instances, multiple entity sets per type, support for referential integrity constraints, span support, transactions, serialization, no more default constructors in code-generated classes, improvements to stored procedure support, access to the underlying store connection, directory macros in the entity connection string to support hosted scenarios, native SQL read-only views, UNICODE support in Entity SQL, query plan caching, and canonical functions in Entity SQL.
Samples are http://www.codeplex.com/adonetsamples/
Refer for more at http://blogs.msdn.com/adonet/archive/2007/07/02/ado-net-entity-framework-june-2007-ctp-now-available.aspx
Overview This CTP contains updates to the ADO.NET Entity Framework since the Visual Studio Codename "Orcas"