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C# Entity Framework Basics CRUD Operations Creating an Entity

very close possibly

here is my compiler error
what can you suggest to fix this Repository.cs(45,18): error CS0127: `Treehouse.CodeChallenges.Repository.AddCourse(Treehouse.CodeChallenges.Course)': A return keyword must not be followed by any expression when method returns void Compilation failed: 1 error(s), 0 warnings

Repository.cs
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
                              .OrderBy(c => c.Teacher.LastName)
                              .ThenBy(c => c.Teacher.FirstName)
                              .ToList();
            }
        }

        public static List<Course> GetCoursesByTeacher(string lastName)
        {
            using (var context = new Context())
            {
                return context.Courses
                              .Where(c => c.Teacher.LastName == lastName)
                              .ToList();
            }
        }

        public static Course GetCourse(int id)
        {
            using (var context = new Context())
            {
                return context.Courses
                              .Include(c => c.Teacher)
                              .SingleOrDefault(c => c.Id == id);
            }
        }

        public static void AddCourse(Course course)
        {
            // TODO
            using (var context = new Context())
            {
                 return context.Courses
                                .Add(course);
                               context.SaveChanges();
            }
        }
    }
}

1 Answer

Steven Parker
Steven Parker
231,198 Points

A void method does not return anything.

Since AddCourse is defined as void, it should not return any value. It should either end with a plain return statement, or you can just not have one at all.

:mailbox_with_mail: And I did get your message.