private void detach_InstructorCourseRelations(InstructorCourseRelation entity)
		{
			this.SendPropertyChanging();
			entity.User = null;
		}
		private void attach_InstructorCourseRelations(InstructorCourseRelation entity)
		{
			this.SendPropertyChanging();
			entity.Course = this;
		}
 partial void UpdateInstructorCourseRelation(InstructorCourseRelation instance);
 partial void DeleteInstructorCourseRelation(InstructorCourseRelation instance);
 partial void InsertInstructorCourseRelation(InstructorCourseRelation instance);