How to: Group Data
This topic shows how to group query results. The example returns a set of nested data records that contain the Contact.LastName column, grouped and sorted alphabetically by the first letter of Contact.LastName. The same example is shown using each of the following Entity Framework query technologies:
The example in this topic is based on the Adventure Works Sales Model. To run the code in this topic, you must have already added the Adventure Works Sales Model to your project and configured your project to use the Entity Framework. For more information, see How to: Use the Entity Data Model Wizard (Entity Framework) or How to: Manually Configure an Entity Framework Project and How to: Manually Define an Entity Data Model (Entity Framework).
The following is the LINQ to Entities example.
The following is the Entity SQL example.
The following is the query builder method example.