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Start your free trialMarcus Stigall
13,252 PointsIm lost
In Repository.cs update the GetCoursesByTeacher method to return a list of the available courses whose teacher's last name equals the passed in lastName parameter value.
Instantiate an instance of the Context class within a using statement Return the results of calling Where and ToList on the context's Courses DbSet property
please help
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
namespace Treehouse.CodeChallenges
{
public class Course
{
public Course()
{
Students = new List<CourseStudent>();
}
public int Id { get; set; }
public int TeacherId { get; set; }
[Required, StringLength(200)]
public string Title { get; set; }
public string Description { get; set; }
public int Length { get; set; }
public Teacher Teacher { get; set; }
public ICollection<CourseStudent> Students { get; set; }
}
}
using System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
namespace Treehouse.CodeChallenges
{
public static class Repository
{
public static List<Course> GetCourses()
{
using (var context = new Context())
{
return context.Courses.ToList();
}
}
public static List<Course> GetCoursesByTeacher(string lastName)
{
using (var context = new Context())
{
.Where cb => cb.Courses.ToList();
}
}
}
namespace Treehouse.CodeChallenges
{
public class Teacher
{
public int Id { get; set; }
public string FirstName { get; set; }
public string LastName { get; set; }
}
}
2 Answers
Karlijn Willems
9,961 PointsIn the course class, dubbelcheck the name of your Teacher property...
Tanmoy Chowdhury
12,622 Pointsusing System.Collections.Generic;
using System.Data.Entity;
using System.Linq;
namespace Treehouse.CodeChallenges
{
public static class Repository
{
public static List<Course> GetCourses()
{
using (var context = new Context())
{
return context.Courses.ToList();
}
}
public static List<Course> GetCoursesByTeacher(string lastName)
{
using (var context = new Context())
{
return context.Courses.Include(cb => cb.Teacher).Where(cb => cb.Teacher.LastName == lastName).ToList();
}
}
}
}