The "Objectify Data with ADO.NET vNext" article from the October 2006 issue of Visual Studio Magazine explains how the ADO.NET vNext August 2006 Community Technical Preview reincarnates ObjectSpaces’ object/relational mapping (O/RM) technology and OPath query language as the Entity Framework (EF), Entity Data Model (EDM), Entity SQL (eSQL), and LINQ to Entities for the Visual Studio “Orcas” release.
Here's a screen capture of the article's VB 9.0 sample test harness:
The article's AdventureWorks SalesPersons bonus project (AWv3TestApp.sln) invokes the AdventureWorksV3 EDM class library to populate a DataGridView with records for sales personnel who are eligible for bonuses—five years employment by AW for this example. Clicking the Add or Deduct buttons increcments or decrements bonuses, persists the changes, and refreshes the grid.
If you're interested in learning more about the ADO.NET team's new approach to O/RM check out these previous OakLeaf posts:
Click here for a page of links to earlier posts about LINQ, LINQ to SQL (DLinq), and LINQ to XML (XLinq)
Technorati Tags: ADO.NET vNext, Entity Framework, Entity Data Model, LINQ, LINQ to Entities, LINQ to DataSets, LINQ to SQL, Entity SQL, eSQL, DLinq, XLinq, C# 3.0, VB 9.0, Orcas, ObjectSpaces, Domain-Specific Languages, DSL, DSL Tools
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