Calling Oracle 10g Stored Proc with Assoc Array from C# VS 2008

Question

I have the following PL/SQL procedure:
CREATE OR REPLACE PROCEDURE HMA_ADM.PRC_VDM_SAVDEL_VEN_DOC
P_OP IN VARCHAR2,
P_USRID IN TB_VDM_MANAGE_DOCUMENTS.CREATEDBY%TYPE,
P_DATE IN VARCHAR2, -- HAS TO BE STRING, ELSE WE GET AN ERROR
P_DOCNAM IN TB_VDM_MANAGE_DOCUMENTS.DOCUMENT_NAME%TYPE,
P_DOCLNK IN TB_VDM_MANAGE_DOCUMENTS.DOCUMENTLINK%TYPE,
P_FNGUID IN TB_VDM_MANAGE_DOCUMENTS.FILENET_GUID%TYPE,
P_DESC IN TB_VDM_MANAGE_DOCUMENTS.DESCRIPTION%TYPE,
P_REQID IN VARR
) IS
Where VARR is:
CREATE OR REPLACE TYPE VARR IS TABLE OF INTEGER;
In C# I have the following code:
int64[] intReqID;
OracleCommand cmdVDL = new OracleCommand(DBQueries.SPQRY_SAVDELVENDOC, connDB);
cmdVDL.CommandType = CommandType.StoredProcedure;
cmdVDL.Parameters.Add(new OracleParameter("P_OP", strOP));
cmdVDL.Parameters.Add(new OracleParameter("P_CREATEBY", strUID));
cmdVDL.Parameters.Add(new OracleParameter("P_CREATEDATE", strDate));
cmdVDL.Parameters.Add(new OracleParameter("P_DOCNAM", strDocNam));
cmdVDL.Parameters.Add(new OracleParameter("P_DOCLNK", strURL));
cmdVDL.Parameters.Add(new OracleParameter("P_FNGUID", strGUID));
cmdVDL.Parameters.Add(new OracleParameter("P_DESC", strDesc));
cmdVDL.Parameters.Add(new OracleParameter("P_REQID", OracleDbType.Int64) {
CollectionType = OracleCollectionType.PLSQLAssociativeArray,
Size = intReqID.Count(),
Value = intReqID,
DbType = DbType.Int64,
OracleDbType = OracleDbType.Int64
OracleParameterStatus[] stat = new OracleParameterStatus[intReqID.Count()];
for (i = 0; i < intReqID.Count(); i++) {
stat[i] = OracleParameterStatus.Success;
cmdVDL.Parameters["P_REQID"].ArrayBindStatus = stat;
cmdVDL.ExecuteNonQuery();
When I run this I get the following error:
ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'PRC_VDM_SAVDEL_VEN_DOC'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
If I remove the Associative Array from both, the procedure runs fine.
What am I doing wrong?

Answer 1

Additionally,
1) UDT support requires 11106.20 or higher ODP (but can be used against 10g db)
2) if the plsql is changeable, you may want to swap it to associative array instead to avoid having to create custom classes for the UDT, and here's a short sweet example.
Greg
CREATE or replace PACKAGE MYPACK3 AS
TYPE numarray is table of number index by BINARY_INTEGER;
PROCEDURE getempsinarray(thearray IN numarray, numrecs out number);
END MYPACK3;
CREATE or replace PACKAGE BODY MYPACK3 AS
PROCEDURE getempsinarray(thearray IN numarray, numrecs out number)
IS
begin
  numrecs :=  thearray.count;
END getempsinarray;
END MYPACK3;
using System;
using System.Data;
using Oracle.DataAccess.Client;
public class indexby
     public static void Main()
      OracleConnection con = new OracleConnection("data source=orcl;user id=scott;password=tiger;");
      con.Open();
      OracleCommand cmd = new OracleCommand("mypack3.getempsinarray", con);
      cmd.CommandType = CommandType.StoredProcedure;
      OracleParameter Param1 = cmd.Parameters.Add("param1", OracleDbType.Int32);
      Param1.Direction = ParameterDirection.Input;
      Param1.CollectionType = OracleCollectionType.PLSQLAssociativeArray;
      Param1.Value = new int[3]{7369,7499, 7521};
      Param1.Size = 3;
      OracleParameter Param2 = cmd.Parameters.Add("param2", OracleDbType.Int32, DBNull.Value, ParameterDirection.Output );
     cmd.ExecuteNonQuery();
     Console.WriteLine("{0} records passed in",Param2.Value);               
      con.Close();
}