if (sID > 0)
                {
            String retXml = String.Empty;
                    DataSet ds = new DataSet();
                    DataTable dtpdfAndEmailInfo = new DataTable("pdfandemailinfo");
                    DataRow dr = dtpdfAndEmailInfo.NewRow();

                    dtpdfAndEmailInfo.Clear();
                    dtpdfAndEmailInfo.Columns.Add("mailFrom", typeof(string));
                    dtpdfAndEmailInfo.Columns.Add("mailTo", typeof(string));
                    dtpdfAndEmailInfo.Columns.Add("mailCC", typeof(string));
                    dtpdfAndEmailInfo.Columns.Add("mailBCC", typeof(string));
                    dtpdfAndEmailInfo.Columns.Add("mailSubject", typeof(string));
                    dtpdfAndEmailInfo.Columns.Add("salesorderpdfurl", typeof(string));
                    ds.Tables.Add(dtpdfAndEmailInfo);
                    dtpdfAndEmailInfo.Rows.Add(dr);
                    String fileDirectory="D:\po\Sandbox\po\BOID_858_ORGID_571\SalesOrderPdf\" ;
            String FileName ="BOID_858_SOID_151382.pdf";
                    for (int i = 0; i <= ds.Tables[0].Rows.Count - 1; i++)
                    {
                        ds.Tables[0].Rows[i]["mailFrom"] = "someemailid@yopmail.com";
                        ds.Tables[0].Rows[i]["mailTo"] = "someemailid1@yopmail.com";
                        ds.Tables[0].Rows[i]["mailCC"] = "someemailid2@yopmail.com";
                        ds.Tables[0].Rows[i]["mailSubject"] = "Test";
                        if (System.IO.File.Exists(Path.Combine(fileDirectory, FileName)))
                        {
                            ds.Tables[0].Rows[i]["SalesOrderPdfURL"] = Path.Combine(fileDirectory, FileName);
                        }
                        else
                        {
                            ds.Tables[0].Rows[i]["SalesOrderPdfURL"] = "";
                        }
                    }

                    Cmd.ResponseStatus.RowCount = ds.Tables[0].Rows.Count;
                    retXml = Util.GetXmlList(ds, "salesorderPdfAndEmailInfo", "pdfandemailinfos");
                }

public static string GetXmlList(DataSet ds, String rootNode, String itemNode)
        {
            return GetXmlList(ds, rootNode, @"cls=""dataArray""", itemNode, @"cls=""dataItem""");
        }

public static string GetXmlList(DataSet ds, String rootNode, String rootAttribute, String itemNode, String itemAttribute)
        {
            String rootNodeStartTag = String.Format("<{0} {1}>", rootNode, rootAttribute);
            String rootNodeEndTag = String.Format("</{0}>", rootNode);
            String nodeStartTag = String.Format("<{0} {1}>", itemNode, itemAttribute);
            String nodeEndTag = String.Format("</{0}>", itemNode);

            string retXML = ds.GetXml().Replace("<NewDataSet>", rootNodeStartTag).Replace("<Table>", nodeStartTag).Replace("</NewDataSet>", rootNodeEndTag).Replace("</Table>", nodeEndTag);
            return HttpUtility.HtmlDecode(retXML);
        }

"salesorderPdfAndEmailInfo": {
            "pdfandemailinfo": {
              "mailFrom": "someemailid@yopmail.com",
              "mailTo": "someemailid1@yopmail.com",
              "mailCC": "someemailid2@yopmail.com",
              "mailSubject": "Test",
              "salesorderpdfurl": "http://localhost/por/D:\po\Sandbox\po\BOID_858_ORGID_571\SalesOrderPdf\BOID_858_SOID_151382.pdf"
            }
          }

"salesorderPdfAndEmailInfo": {

              "mailFrom": "someemailid@yopmail.com",
              "mailTo": "someemailid1@yopmail.com",
              "mailCC": "someemailid2@yopmail.com",
              "mailSubject": "Test",
              "salesorderpdfurl": "http://localhost/por/D:\po\Sandbox\po\BOID_858_ORGID_571\SalesOrderPdf\BOID_858_SOID_151382.pdf"

          }