สอบถามวิธีการดึงชื่อพารามิเตอร์ในรายงานที่สร้างโดยโปรแกรม Crystal Report

        private void GetReportParams()
        {
            ReportDocument reportDocument = new ReportDocument();
            ConnectionInfo crConnectionInfo = new ConnectionInfo();
            TableLogOnInfos crTableLogonInfos = new TableLogOnInfos();
            TableLogOnInfo crTableLogonInfo = new TableLogOnInfo();
            reportDocument.Load(@"D:\rptT1.rpt");
            crConnectionInfo.ServerName = "xxx";
            crConnectionInfo.DatabaseName = "xxx";
            crConnectionInfo.UserID = "xx";
            crConnectionInfo.Password = "xxx";
            string strName;
            string strType;
            crTableLogonInfo.ConnectionInfo = crConnectionInfo;
            crTableLogonInfos.Add(crTableLogonInfo);
            crystalReportViewer1.LogOnInfo = crTableLogonInfos;
            crystalReportViewer1.ReportSource = reportDocument;

            intPataCount = Convert.ToByte(reportDocument.DataDefinition.ParameterFields.Count);

            foreach (ParameterFieldDefinition prm in reportDocument.DataDefinition.ParameterFields)
            {
                strName = prm.ParameterFieldName.ToString();
                strType = prm.ParameterValueKind.ToString();
            }
        }