Npgsql.NpgsqlCommand.CreateParameter C# (CSharp) Method

        public new NpgsqlParameter CreateParameter()
        {
            NpgsqlEventLog.LogMethodEnter(LogLevel.Debug, CLASSNAME, "CreateParameter");

            return new NpgsqlParameter();
        }

        public int SetData(string procedureName, IList<SQLProcedureParameterVO> ParameterList)
        {
            int succCount = 0;
            Exception ex = null;
            bool querySucc = true;

            //저장프로시저와 커맨드 객체 연결
            NpgsqlCommand nCMD = new NpgsqlCommand(procedureName, this.NpgConn);
            nCMD.CommandType = CommandType.StoredProcedure;
            foreach (SQLProcedureParameterVO SQLProcedureParameterVO in ParameterList)
            {
                var parameter = nCMD.CreateParameter();
                parameter.ParameterName = SQLProcedureParameterVO.parameterName;
                parameter.DbType = SQLProcedureParameterVO.DBType;
                parameter.Value = SQLProcedureParameterVO.value;
                nCMD.Parameters.Add(parameter);
            }

            using (nCMD)
            {
                using (NpgsqlTransaction tran = this.NpgConn.BeginTransaction(IsolationLevel.ReadCommitted))
                {
                    nCMD.Transaction = tran;
                    try
                    {
                        lock (SetDataThreadSafe)
                        {
                            succCount += nCMD.ExecuteNonQuery();
                        }
                    }
                    catch (Exception e)
                    {
                        querySucc = false;
                        ex = e;
                    }

                    if (querySucc)
                    {
                        tran.Commit();
                        return succCount;
                    }
                    else
                    {
                        if (tran != null)
                        {
                            tran.Rollback();
                        }
                        throw ex;
                    }
                }//End of using(tran)
            }//End of Using(cmd)
        }