解决：下载EXCEL文件，自动用迅雷下载aspx

if (Request.QueryString["id"] != null && !string.IsNullOrEmpty(Request.QueryString["id"].ToString()))

        {

            if (Request.QueryString["oid"] != null && !string.IsNullOrEmpty(Request.QueryString["oid"].ToString()))

            {

                id = Request.QueryString["id"].ToString();

                oid = Request.QueryString["oid"].ToString();

                string sqlWhere = string.Format("PProductNumber='{0}' and OrdersNumber='{1}'", id, oid);

                List<SonOrders> li=   _SonOrdersManager.GetOrdersLists(sqlWhere);

            if (li.Count > &&li!=null)

            {

                MemoryStream ms = new MemoryStream();

                IWorkbook workbook = new HSSFWorkbook();

                ISheet sheet = workbook.CreateSheet();

                ICellStyle style1 = workbook.CreateCellStyle();

                IFont font = workbook.CreateFont();

                font.FontHeightInPoints = ;

                style1.SetFont(font);

                sheet.DefaultRowHeight =  * ;

                for (int i = ; i < ; i++)

                {

                    if (i == )

                        sheet.SetColumnWidth(i, * );

                    else

                        sheet.SetColumnWidth(i,  * );

                    sheet.SetDefaultColumnStyle(i, style1);

                }

                IRow row1 = sheet.CreateRow();

                ICell cell = row1.CreateCell();

                cell.SetCellValue(oid+"_状态详细");

                ICellStyle style2 = workbook.CreateCellStyle();

                style2.Alignment = HorizontalAlignment.CENTER;

                IFont font2 = workbook.CreateFont();

                font2.FontHeight =  * ;

                style2.SetFont(font2);

                cell.CellStyle = style2;

                sheet.AddMergedRegion(new CellRangeAddress(, , , ));

                IRow headerRow = sheet.CreateRow();

                headerRow.CreateCell().SetCellValue("产品编号");

                headerRow.CreateCell().SetCellValue("下单时间");

                headerRow.CreateCell().SetCellValue("原型验收时间");

                headerRow.CreateCell().SetCellValue("首件验收时间");

                headerRow.CreateCell().SetCellValue("组装验收时间");

                headerRow.CreateCell().SetCellValue("厂家出库时间");

                headerRow.CreateCell().SetCellValue("现场入库时间");

                headerRow.CreateCell().SetCellValue("领用入库时间");

                headerRow.CreateCell().SetCellValue("开箱验收时间");

                headerRow.CreateCell().SetCellValue("安装完成时间");

                headerRow.CreateCell().SetCellValue("安装验收时间");

                 int j = ;

                 foreach (SonOrders so in li)

                 {

                     IRow dataRow = sheet.CreateRow(j++);

                     dataRow.CreateCell().SetCellValue(so.SProductNumber);

                     dataRow.CreateCell().SetCellValue(GetTimeS("下单时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("原型验收时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("首件验收时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("组装验收时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("厂家出库时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("现场入库时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("领用入库时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("开箱验收时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("安装完成时间", so.SProductNumber).ToString());

                     dataRow.CreateCell().SetCellValue(GetTimeS("安装验收时间", so.SProductNumber).ToString());

                 }

                 workbook.Write(ms);

                 ms.Flush();

                 ms.Position = ;

                 try

                 {

                     string[] files = Directory.GetFiles(System.AppDomain.CurrentDomain.BaseDirectory + "excels/");

                     foreach (string file in files)

                     {

                         File.Delete(file);

                     }

                 }

                 catch (Exception exx)

                 {

                     Response.Write(exx.Message.ToString());

                 }
string pname = "状态详细_" + DateTime.Now.ToString("yyyyMMddhhmmss") + ".xls";

                 NpoiHelper.SaveToFile(ms, System.AppDomain.CurrentDomain.BaseDirectory + "excels/" + pname);

                 Response.Redirect("~/excels/" + pname, false);

                 Response.Clear(); 

                // Response.Clear();

                // Response.ClearHeaders();

                // Response.Buffer = false;

                // Response.ContentType = "application/octet-stream";

                // if (Request.Browser.Browser == "Firefox")

                //     System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + oid + "_状态详细.xls");

                //else

                //     System.Web.HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(oid + "_状态详细.xls", System.Text.Encoding.UTF8));

                // System.Web.HttpContext.Current.Response.AppendHeader("Content-Length", ms.Length.ToString());

                // System.Web.HttpContext.Current.Response.BinaryWrite(ms.GetBuffer());

                // System.Web.HttpContext.Current.Response.Flush();

                // System.Web.HttpContext.Current.Response.End();

            }

            }