private void detach_MemberMediaRelations(MemberMediaRelation entity)
		{
			this.SendPropertyChanging();
			entity.Member = null;
		}
		private void attach_MemberMediaRelations(MemberMediaRelation entity)
		{
			this.SendPropertyChanging();
			entity.Media = this;
		}
 partial void UpdateMemberMediaRelation(MemberMediaRelation instance);
 partial void DeleteMemberMediaRelation(MemberMediaRelation instance);
 partial void InsertMemberMediaRelation(MemberMediaRelation instance);