using crystalreport generate PDF

DataTable dt =  new DataTable();
                dt.TableName =  " DataTable1 ";
                dt.Columns.Add( " id ");
                dt.Columns.Add( " DESCRIPTION ");
                dt.Columns.Add( " QUANTITY ");
                dt.Columns.Add( " UNITPRICE ");
                dt.Columns.Add( " HandWorkPrice ");

                DataTable dtOrder =  new DataTable();
                dtOrder.TableName =  " Order ";
                dtOrder.Columns.Add( " id ");
                dtOrder.Columns.Add( " ReceiveDate ");
                dtOrder.Columns.Add( " PRODUCT ");
                dtOrder.Columns.Add( " MachineSN ");
                dtOrder.Columns.Add( " TroubleDescription ");
                dtOrder.Columns.Add( " Description2 ");
                dtOrder.Columns.Add( " Diagnose ");
                dtOrder.Columns.Add( " SUBTOTAL ");
                dtOrder.Columns.Add( " Inspection ");
                dtOrder.Columns.Add( " TOTAL ");
                dtOrder.Columns.Add( " To ");
                dtOrder.Columns.Add( " Date ");
                dtOrder.Columns.Add( " Telephone ");
                dtOrder.Columns.Add( " QuotationNo ");
                dtOrder.Columns.Add( " MOBILE ");
                dtOrder.Columns.Add( " ENGINEER ");
                dtOrder.Columns.Add( " Email ");
                dtOrder.Columns.Add( " SchoolAddr ");
                dtOrder.Columns.Add( " SchoolPhone ");
                dtOrder.Columns.Add( " SchoolEmail ");

                DataSet ds =  new DataSet();
                ds.Tables.Add(dtOrder);
                ds.Tables.Add(dt);
                DataRelation dataRelation =  new DataRelation( " rel1 ", dtOrder.Columns[ 0], dt.Columns[ " id "]);

                 string parts =  "";
                listOrder = SPContext.Current.Web.Lists[Helper.Global.ListNames.OrderList];
                SPList accessoryList = SPContext.Current.Web.Lists[Helper.Global.ListNames.ComponentList];
                SPListItem item = listOrder.GetItemById(orderid);

                 string queryStr = ASPsolution.Helper.Global.QueryString.Component;
                queryStr =  string.Format(queryStr, orderid.ToString());
                SPQuery query =  new SPQuery();
                query.Query = queryStr;
                SPListItemCollection accessaryItem = accessoryList.GetItems(query);
                List<ASPsolution.BLL.Entity.ASPOrder> order =  new List<ASPsolution.BLL.Entity.ASPOrder>();
                 // decimal totalPrice=0;
                 for ( int i =  0; i < accessaryItem.Count; i++)
                {
                    DataRow dr = dt.NewRow();
                    dr[ " id "] = orderid;
                    dr[ " DESCRIPTION "] = accessaryItem[i][ " Description "];
                    dr[ " QUANTITY "] = accessaryItem[i][ " Count "];
                     // totalPrice=
                    dr[ " UNITPRICE "] = Helper.Formater.FormateCurrency(OrderProvider.ComputeComponentCustomerPrice(Convert.ToDecimal(accessaryItem[i][ " Price "].ToString()),  int.Parse(accessaryItem[i][ " Count "].ToString()), Convert.ToDecimal(accessaryItem[i][ " HandWorkPrice "].ToString())));
                    dr[ " HandWorkPrice "] = accessaryItem[i][ " HandWorkPrice "];
                    dt.Rows.Add(dr);
                    parts = parts +  " , " + Convert.ToString(dr[ " Description "]);
                }
                 if (accessaryItem.Count ==  0)
                {
                    DataRow dr = dt.NewRow();
                    dr[ " id "] = orderid;
                    dr[ " DESCRIPTION "] =  "";
                    dr[ " QUANTITY "] =  "";
                    dr[ " UNITPRICE "] =  "";
                    dr[ " HandWorkPrice "] =  "";
                    dt.Rows.Add(dr);
                }

                 if (parts.StartsWith( " , "))
                {
                    parts = parts.Substring( 1);
                }
                 if (parts.EndsWith( " , "))
                {
                    parts = parts.Substring( 0, parts.Length -  1);
                }

                DataRow dataRow = dtOrder.NewRow();
                dataRow[ " id "] = orderid;
                
                dataRow[ " PRODUCT "] = item[ " model "];
                dataRow[ " MachineSN "] = item[ " MachineSN "];
                dataRow[ " TroubleDescription "] = item[ " TroubleDescription "];
                dataRow[ " Diagnose "] = item[ " Diagnose "];

                 decimal checkFee = 0m, customerFee = 0m, subTotal = 0m;
                checkFee = Convert.ToDecimal(item[ " CheckFee "]);
                customerFee = Convert.ToDecimal(item[ " Custom_TotalPrice "]);
                subTotal = customerFee - checkFee;
                dataRow[ " SUBTOTAL "] = Helper.Formater.FormateCurrency(subTotal);
                dataRow[ " Inspection "] = Helper.Formater.FormateCurrency(checkFee);
                dataRow[ " TOTAL "] = Helper.Formater.FormateCurrency(customerFee);
                dataRow[ " Description2 "] = parts;
                dataRow[ " To "] = item[ " CustomName "];
                 try
                {
                    dataRow[ " ReceiveDate "] = Convert.ToDateTime(item[ " receiveDate "]).ToString(Helper.Global.DateFormatReport);
                    dataRow[ " Date "] = Convert.ToDateTime(item[ " CreatedDate "]).ToString(Helper.Global.DateFormatReport);
                }
                 catch(Exception ex)
                {
                    Helper.Logger.Log( " Helper.ReportHelper.cs CreatePDFReport ", ex.Message);
                }
                dataRow[ " Telephone "] = item[ " phone "];
                dataRow[ " QuotationNo "] = item[ " QuotationID "];
                dataRow[ " MOBILE "] = item[ " mobile "];

                SPFieldUser lookUpUser = listOrder.Fields.GetField( " UserName ")  as SPFieldUser;
                SPFieldUserValue userValue = lookUpUser.GetFieldValue(item[ " UserName "].ToString())  as SPFieldUserValue;
                 string userName = userValue.User.Name;
            

                dataRow[ " ENGINEER "] = userName; //  item["UserName"]; //////////////////// /
                dataRow[ " Email "] = item[ " Email "];

                listMaintenanceCenter = SPContext.Current.Web.Lists[Helper.Global.ListNames.MaintenanceCenter];
                SPFieldLookup lookUp = listOrder.Fields.GetField( " MaintenanceCenter ")  as SPFieldLookup;
                SPFieldLookupValue lookUpValue = lookUp.GetFieldValue(item[ " MaintenanceCenter "].ToString())  as SPFieldLookupValue;
                 int maintenanceCenterId =  int.Parse(lookUpValue.LookupId.ToString());
                listMaintenanceCenter = SPContext.Current.Web.Lists[Helper.Global.ListNames.MaintenanceCenter];
                SPListItem maintenanceCenter = listMaintenanceCenter.GetItemById(maintenanceCenterId);


                dataRow[ " SchoolAddr "] = Convert.ToString(maintenanceCenter[ " Address "]);
                dataRow[ " SchoolPhone "] = Convert.ToString(maintenanceCenter[ " Phone "]);
                dataRow[ " SchoolEmail "] = Convert.ToString(maintenanceCenter[ " Email "]);

                dtOrder.Rows.Add(dataRow);

                 string path = HttpContext.Current.Server.MapPath( " /tmp/ " + orderid +  " .pdf ");
                ReportDocument repDoc =  new ReportDocument();
                 string path1 = Helper.DocumentHelper.GetDocumentPhysicalPath( " CrystalReport2.rpt ");
                repDoc.Load(path1);                
                repDoc.SetDataSource(ds);
                repDoc.ExportToDisk(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, path);
                System.Threading.Thread.Sleep( 500);
                 return path;