Asp gridview rowupdating newvalues
In Visual Studio, open the Contoso University web application you created in the Getting Started with the Entity Framework and Web Forms tutorial series, and then open the table, but no foreign key relationship is defined in the database.
You need to create the relationship and update the data model so that the Entity Framework can automatically handle this relationship.
This abstraction layer is implemented by creating an interface and using the interface when you instantiate the repository in the business-logic class.
This makes it possible for you to provide the business-logic class with a reference to any object that implements the repository interface.
You will also create unit tests for the validation logic.
In Server Explorer, expand file, right-click the design surface, and select Update Model from Database.
You can also download the application that is created by the complete tutorial series.
The Contoso University sample web application demonstrates how to create ASP.
In this tutorial you will create separate classes for business logic and for data-access logic.
The class that encapsulates data-access logic is called a .