ASP.NET 4 Unleashed

Using the Entity Base Class

Follow these steps to use the custom entity base classes:

1. Create a new website.
2. Add an App_Code folder to your website, and copy the EntityBaseClasses folder to the App_Code folder.
3. Create one or more LINQ to SQL entities with the help of the LINQ to SQL Designer.
4. Add a connection string named con to your database in the web.config file.
5. Create a separate partial class for each LINQ to SQL entity and derive the class from the EntityBase class.
6. Create an empty Validate() method for each entity class.

For example, imagine that you have used the LINQ to SQL Designer to create an entity named Movie. You created the Movie entity by dragging the Movie database table from the Database Explorer (Server Explorer) window onto ...