asp.net entity framework tutorial part- 4

In this video I will show you how to display and update related data.
You'll create the Instructors page that shows a list of instructors. When you select an instructor, you see a list of courses taught by that instructor. When you select a course, you see details for the course and a list of students enrolled in the course. You can edit the instructor name, hire date, and office assignment. The office assignment is a separate entity set that you access through a navigation property.
You can link master data to detail data in markup or in code. In this part of the tutorial, you'll use both methods