Accessing the relationship of a relationship with Entity Framework
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by J. Pablo Fernández
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Published on 2009-09-13T16:42:02Z
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I the School class I have this code:
from student in this.Students where student.Teacher.Id == id select student
The Student class there are two relationships: Teacher and School. In the School class I'm trying to find out all the students whose Teacher has a given id.
The problem is that I get
System.NullReferenceException: Object reference not set to an instance of an object.
in the statement
student.Teacher.Id
I thought of doing this.Students.Include("Teacher"), but this.Students doesn't have such a method. Any ideas how can I perform that query?
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