Microsoft® Visual Studio® 2010 Unleashed

LINQ Code

Let’s examine exactly what has taken place behind the scenes as a result of the drag-and-drop operation between Server Explorer and the O/R Designer.

For one, the connection string necessary to open a connection to the selected database is automatically stored in the app.config (or web.config) file for you. This is then leveraged by LINQ to make calls into the database when needed. In addition, a new class has been defined. Here is a snippet from the Employee class showing its constructor:

Note

The O/R Designer actually “de-pluralizes” entity names for you automatically. Many HR databases, for instance, might choose to implement an ...