Oracle存储过程实现返回多个结果集 在构造函数方法中使用 dataset

public DataSet Get_TRAFeeQinfenStatus(int type, string BargainOrderCode, string ParkUserId, string BerthCode)
        { 

            OracleParameter[] parms = {
                                        new OracleParameter("VRETURN_LIST1", OracleType.Cursor),
                                        new OracleParameter("VRETURN_LIST2", OracleType.Cursor),
                                        new OracleParameter("VRETURN_LIST3", OracleType.Cursor),
                                        new OracleParameter("Vtype", OracleType.Number),
                                        new OracleParameter("VBargainOrderCode", OracleType.VarChar),
                                        new OracleParameter("VParkUserId", OracleType.VarChar),
                                        new OracleParameter("VBerthCode", OracleType.VarChar)

                                     };
            parms[0].Direction = ParameterDirection.Output;
            parms[1].Direction = ParameterDirection.Output;
            parms[2].Direction = ParameterDirection.Output;
            parms[3].Value = type;
            parms[4].Value = BargainOrderCode;
            parms[5].Value = ParkUserId;
            parms[6].Value = BerthCode;

            DataSet ds = OracleHelper.ExecuteDataset(CommandType.StoredProcedure, string.Format("{0}.GET_TRAFEEQINFENSTATUS", CADRE_SZRPP_PK), parms);
            return ds;

        }

oracle存储过程实现：

PROCEDURE GET_TRAFEEQINFENSTATUS
    (

      VRETURN_LIST1 OUT OUTPUTLIST,--查退费单
      VRETURN_LIST2 OUT OUTPUTLIST,--查欠费单
      VRETURN_LIST3 OUT OUTPUTLIST,--缴费记录
      VTYPE IN INTEGER DEFAULT NULL,
      VBARGAINORDERCODE IN TRA_ORDERPAYMENTINFO.BARGAINORDERCODE%TYPE DEFAULT NULL,
      VPARKUSERID IN TRA_ORDERPAYMENTINFO.PARKUSERID%TYPE DEFAULT NULL,
      VBERTHCODE IN TRA_ORDERPAYMENTINFO.BERTHCODE%TYPE DEFAULT NULL
    )
     IS
     VTYPENUMBER  INTEGER;
     VPAYSTATUS   NVARCHAR2(4000);
     VARREARSSTATUS NVARCHAR2(4000);
     VREFUNDSTATUS  NVARCHAR2(4000);

    BEGIN
      SELECT  VTYPE INTO VTYPENUMBER FROM DUAL;

     IF (VTYPENUMBER=2)
        THEN      

    OPEN VRETURN_LIST1  FOR
    SELECT REFUNDSTATUS,PAYSTATUS FROM  TRA_REFUNDORDER  WHERE BARGAINORDERCODE=VBARGAINORDERCODE
       AND PARKUSERID=VPARKUSERID AND BERTHCODE=VBERTHCODE;

    --解决: ORA-24338: 未执行语句句柄  一定要进行对游标输出参数值赋值
      ELSE  OPEN VRETURN_LIST1 FOR SELECT VREFUNDSTATUS AS REFUNDSTATUS,VPAYSTATUS AS PAYSTATUS  FROM DUAL;

     END IF;

      IF (VTYPENUMBER=3 )
         THEN

       OPEN VRETURN_LIST2  FOR
        SELECT ARREARSSTATUS FROM  TRA_ARREARSORDER WHERE BARGAINORDERCODE=VBARGAINORDERCODE
       AND PARKUSERID=VPARKUSERID AND BERTHCODE=VBERTHCODE;

     ELSE   OPEN VRETURN_LIST2 FOR SELECT VARREARSSTATUS AS ARREARSSTATUS  FROM DUAL;

      END IF;

      IF (VTYPENUMBER=5 )

          THEN

       OPEN VRETURN_LIST3  FOR
       SELECT PAYSTATUS FROM TRA_ORDERPAYMENTINFO WHERE BARGAINORDERCODE=VBARGAINORDERCODE
       AND PARKUSERID=VPARKUSERID AND BERTHCODE=VBERTHCODE;     

      ELSE   OPEN VRETURN_LIST3 FOR SELECT VPAYSTATUS AS PAYSTATUS  FROM DUAL;

      END IF;
      END;