Question

我有两张桌子：（1）学生和（2）课程，我还有一个名为（3）StudentCourse的联接表。相关数据：

public class Student
{
  private ICollection<Course> _courses 
  public int Id {get;set;}

  public Student(){
   _courses = new Collection<Course>();
  }

  public ICollection<Course> Courses{
   get {return _courses;}
   set { _courses = value;}
  }
}

public class Course
{
  private ICollection<Student> _students 
  public int Id {get;set;}

  public Course(){
   _students = new Collection<Student>();
  }

  public ICollection<Student> Students{
   get {return _students;}
   set { _students = value;}
  }
}

    protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<Course>()
            .HasMany<Student>(r => r.Students)
            .WithMany(u => u.Courses)
            .Map(m =>
            {
                m.ToTable("StudentCourse");
                m.MapLeftKey("CourseId");
                m.MapRightKey("StudentId");
            });
    }

我的上下文构造函数有：Configuration.LazyLoadingEnabled = false;

当我通过迁移种植我的课程和学生表时，StudentCourse表没有填充。

我错过了什么？

Answer 1

我的不好，我没有将CourseCollection添加到Student类

实体框架连接表未填充

1 个答案: