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C# Entity Framework Basics Extending Our Entity Data Model Defining and Using a One-to-Many Relationship

Posted by Joe Mackey
Joe Mackey
20,418 Points

A default constructor that initializes the Courses property to an instance of List<Course>

I am not understanding how this is done any suggestions on where to read and learn how this is done?

Course.cs 
using System.Collections.Generic
namespace Treehouse.CodeChallenges
{
    public class Course
    {
        public int Id { get; set; }
        public int TeacherId { set; get;}
        public string Title { get; set; }
        public string Description { get; set; }
        public int Length { get; set; }
        public Teacher Teacher { set; get;}

        public ICollection<Courses> { get; set; }




    }
}
Teacher.cs 
namespace Treehouse.CodeChallenges
{
    public class Teacher
    {
        public int Id { get; set; }
        public string FirstName { get; set; }
        public string LastName { get; set; }
    }
}

1 Answer

Steven Parker
Steven Parker
231,269 Points
Steven Parker
Steven Parker
231,269 Points

Just go back a few videos.

The discussion of one-to-many relationships was in the first two videos of this stage. But this challenge is pretty basic property and constructor creation, covered in earlier courses.

Did you already do C# Basics and C# Objects?