private void attach_TeacherSubjects(TeacherSubject entity)
{
this.SendPropertyChanging();
entity.Teacher = this;
}
partial void DeleteTeacherSubject(TeacherSubject instance);
partial void UpdateTeacherSubject(TeacherSubject instance);
partial void InsertTeacherSubject(TeacherSubject instance);
private void detach_TeacherSubjects(TeacherSubject entity)
{
this.SendPropertyChanging();
entity.Subject = null;
}
partial void InsertTeacherSubject(TeacherSubject instance)
{
if (!TeacherSubjects.Contains(instance))
ExecuteDynamicInsert(instance);
}