private void detach_MemberPaymentRelations(MemberPaymentRelation entity)
		{
			this.SendPropertyChanging();
			entity.Payment = null;
		}
		private void attach_MemberPaymentRelations(MemberPaymentRelation entity)
		{
			this.SendPropertyChanging();
			entity.Member = this;
		}
 partial void UpdateMemberPaymentRelation(MemberPaymentRelation instance);
 partial void DeleteMemberPaymentRelation(MemberPaymentRelation instance);
 partial void InsertMemberPaymentRelation(MemberPaymentRelation instance);