Within that method, you provide the logic for retrieving the data.
In the next tutorial, you will set values for Update Method, Delete Method and Insert Method. The downloadable code works with either Visual Studio 2012 or Visual Studio 2013.
However, in this case, eager loading provides the best performance because the related data is displayed for each record.
For example, the Student class contains a collection named Enrollments. Enrollments to retrieve that collection and then use LINQ syntax to retrieve the sum of enrolled credits for each student. The Include clause improves the performance of this query but is not essential for the query to work.
In the code-behind file, you need to add the method that is specified for the Select Method value. Without the Include clause, the data would be retrieved using lazy loading, which involves sending a separate query to the database each time related data is retrieved.
Instead, you will need a link to a page called Students. In this file, define the School Context, Student, Enrollment, and Course classes as follows: The School Context class derives from Db Context, which manages the database connection and changes in the data.
In the Student class, notice the attributes that have been applied to the First Name, Last Name, and Year properties.
Add those values in the code for seeding the Enrollments table.
The database file has been added, but it is currently hidden in the project. Notice the file now appears in the App_Data folder.The model binding pattern works with any data access technology.In this tutorial, you will use Entity Framework, but you could use the data access technology that is most familiar to you.This tutorial series demonstrates basic aspects of using model binding with an ASP. Model binding makes data interaction more straight-forward than dealing with data source objects (such as Object Data Source or Sql Data Source).This series starts with introductory material and moves to more advanced concepts in later tutorials.Open cs, and add using statements for the Contoso University Model Binding. By providing the Include clause, the data is retrieved using eager loading, which means all of the related data is retrieved through a single query of the database.