ASP.NET

Dear All,

My Requirement = I have page on which it having more than 8 tab,I want to display multiple grid onClick of each tab,If i write code in each tab ContentTemplate, my page become to heavy,so it will take lot of time to load.

Current Way = I am using Ajax tab control in one of my project it has ContentTemplate and each ContentTemplate has one iframe, so onclick of each tab related page open in related iframe and all the grid on that page loads.

Problem Current Practice : = No of Pages increases.

Question : Can you suggest me best practice of Tab Concept,So that on each tab click,i should able to load heavy grid, so that each tab content load quickly.

My requirnment is I want to keep Tab Concept only.

Thanking You

 Dim spreadsheet As DocumentFormat.OpenXml.Packaging.SpreadsheetDocument
        Dim worksheet As DocumentFormat.OpenXml.Spreadsheet.Worksheet
        Dim styleXml As String

        spreadsheet = Excel.CreateWorkbook(workbookName)
        If (spreadsheet Is Nothing) Then
            Return
        End If
        Excel.AddWorksheet(spreadsheet, "Test")
        worksheet = spreadsheet.WorkbookPart.WorksheetParts.First().Worksheet
?????
worksheet.Save()

ReportViewer rptvw1 = new ReportViewer();
       rptvw1.ProcessingMode = ProcessingMode.Local;
       rptvw1.LocalReport.ReportPath = p.Server.MapPath("~/GridReport.rdlc");
       BL_Insurance.PrintDetail print = new BL_Insurance.PrintDetail();
       DataTable ds = print.Print(Convert.ToInt32(p.Session["transactionid"]), Convert.ToString(p.Session["typeofplan"]), Convert.ToInt32(p.Session["UserID"]));
       ReportDataSource datasource = new ReportDataSource("DataSet1", ds);
       rptvw1.LocalReport.DataSources.Clear();
       rptvw1.LocalReport.DataSources.Add(datasource);
       ReportParameter[] param = new ReportParameter[4];
       param[0] = new ReportParameter("Company", Convert.ToString(p.Session["insurancecompany"]));
       param[1] = new ReportParameter("Policy", Convert.ToString(p.Session["policyname"]));
       if (ds.Columns.Contains("Adult"))
       {
           param[2] = new ReportParameter("Adult", "True");
           param[3] = new ReportParameter("Child", "True");
       }

       else
       {
           param[2] = new ReportParameter("Adult", "False");
           param[3] = new ReportParameter("Child", "False");
       }
       rptvw1.LocalReport.SetParameters(param);
       rptvw1.LocalReport.Refresh();
       Warning[] warnings = null;
       string[] streamIds = null;
       string mimeType = string.Empty;
       string encoding = string.Empty;
       string extension = string.Empty;
       filetype = "PDF";
       fname = DateTime.Now.ToString("yyyyMMddHHmmssfff");
       byte[] bytes = rptvw1.LocalReport.Render(filetype, null, out mimeType, out encoding, out extension, out streamIds, out warnings);