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25,337 Pointscompiler says SaveChanges is not recognized
compiler says SaveChanges is not recognized
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)
.SaveChanges();
}
}
}
}
1 Answer
Steven Parker
231,198 PointsSaveChanges is not a method of an enumerable.
It's a context method that you will call in a separate statement after adding to your enumerable.
Also, AddCourse is declared as void so it will not return anything.