How to get Multiple output Parameter in My Presendation Laye

Question

My Stored Procedure:
ALTER PROCEDURE [dbo].[ApplicantRequestInsert]
(@periodID int,
@RequestTypeID int,
@ApplicationNumber Varchar(100) output ,
@ApplicantName Varchar(100) output,
@ProgramID int,
@statusID int,
@RequestID int OUTPUT,
@EstimateAmount Money,
@RegulationID int)

My Class
 public object InsertApplicationRequest( AdmissionRequestDAL admiRequest)
        {
            bool isInsert = false;

            SqlParameter[] parms = {
                                       new SqlParameter ("@periodID",SqlDbType.Int),
                                       new SqlParameter ("@RequestTypeID",SqlDbType.Int),
                                       new SqlParameter ("@ApplicationNumber",SqlDbType.VarChar, 50),
                                       new SqlParameter ("@ApplicantName",SqlDbType.VarChar,100),
                                       new SqlParameter ("@ProgramID", SqlDbType.Int),
                                       new SqlParameter ("@statusID",SqlDbType.Int),
                                       new SqlParameter ("@EstimateAmount",SqlDbType.Money),
                                       new SqlParameter ("@RegulationID", SqlDbType.Int),
                                       new SqlParameter("@RequestID", SqlDbType.Int)
                                   };
            parms[0].Value = admiRequest.periodID;
            parms[1].Value = admiRequest.RequestTypeID;
            parms[2].Value = admiRequest.ApplicationNumber;
            parms[2].Direction = ParameterDirection.Output;
            parms[3].Value = admiRequest.@ApplicantName;
            parms[3].Direction = ParameterDirection.InputOutput;
            parms[4].Value = admiRequest.ProgramID;
            parms[5].Value = Convert.ToInt32("1");
            parms[6].Value = admiRequest.EstimateAmount;
            parms[7].Value = admiRequest.RegulationID;
            parms[8].Value = Convert.ToInt32("0");
            parms[8].Direction = ParameterDirection.InputOutput;

            SQLHelper.ExecuteNonQuery(SQLHelper.conection, CommandType.StoredProcedure, "ApplicantRequestInsert", parms);
            string[] returnparm = new string[3];
            returnparm[0] = parms[2].Value.ToString();
            returnparm[1] = parms[3].Value.ToString();
            returnparm[2] = parms[8].Value.ToString();
           
            return isInsert ;
        }

how to get my output parameter in my presentation Layer