Error calling a stored procedure from C#

Question

Please help me!
I'm new in .net technology.
I have an Oracle 9i server and an application in .net C# language.
I'm trying to call a stored procedure written in plsql.
This is the testing procedure:
CREATE OR REPLACE PROCEDURE TEST_PROC
par_1 in number
as
begin
insert into tbltestinput (number_col) values (par_1);
commit;
end;
And the calling code is:
OracleCommand objCmd = new OracleCommand("TEST_PROC",conn);
objCmd.CommandType = CommandType.StoredProcedure;
OracleParameter inPar_1 = new OracleParameter();
inPar_1.OracleType = OracleType.Number;
inPar_1.Direction = ParameterDirection.Input;
inPar_1.Value = 123456;
objCmd.Parameters.Add(inPar_1);
objCmd.ExecuteNonQuery();
It returns this error:
Exception Message: ORA-06550: row 1, column 7: PLS-00306: wrong number or types of arguments in call to 'TEST_PROC' ORA-06550: row 1, column 7: PL/SQL: Statement ignored
Exception Source: System.Data.OracleClient
The stored procedure is very very simple to test only the call.
Anybody can help me.
Thanks !!!!

Answer 1

Hello,
System.Data.OracleClient == Microsoft provider for Oracle (whereas this is the Oracle Data Provider for .NET forum).
However, the MS provider operates in Bind By Name mode, so you might try adding this to your code:
inPar_1.ParameterName = "par_1";Perhaps that will help a bit,
Mark