在Response.End()之后执行代码

在Response.End（）.之后执行代码时遇到问题

我用它将数据表/ASP表导出到MS Excel（.xls）。

导出完成，但我的Gridview不再加载。我用来加载网格视图的命令是在Response.End（）.之后编写的

我尝试使用HttpContext.Current.ApplicationInstance.CompleteRequest();，但没有帮助。

我也试过Response.Redirect("Charges_Trs.aspx", false);仍然不起作用。。

请帮忙。。这是我的代码

lblNotif.Text = "Selected items have been posted. Exporting XLS ... (will be saved in your desktop)";
exportToExcel(dt); //calls the function to export the datatable to excel, i passed dt=datatable to this function
timerNotif.Enabled = true;
btnSearch_Click(null, null); //called the event of a button that loads the gridview

这是函数exporttoexcel()

public void exportToExcel(DataTable dt)
    {
        Table dTable = new Table();
        TableRow dTableRow = new TableRow();
        //Column Headings
        for (int i = 0; i < dt.Columns.Count; i++)
        {
            TableCell tCell = new TableCell();
            tCell.Text = dt.Columns[i].ToString();
            dTableRow.Cells.Add(tCell);
        }
        dTable.Rows.Add(dTableRow);
        //Rows
        for (int i = 0; i < dt.Rows.Count; i++)
        {
            dTableRow = new TableRow();
            for (int j = 0; j < dt.Columns.Count; j++)
            {
                TableCell tCell = new TableCell();
                dTableRow.Cells.Add(tCell);
            }
            dTable.Rows.Add(dTableRow);
        }
        if (Response.IsClientConnected)
        {
            Response.Clear();
            Response.ClearContent();
            Response.ClearHeaders();
            Response.Buffer = true;
            Response.AddHeader("content-disposition", "attachment;filename=PostedCharges" + DateTime.Now.ToString("MMddyyyy") + ".xls");
            Response.Charset = "";
            Response.ContentType = "application/vnd.ms-excel";
            StringWriter sw = new StringWriter();
            HtmlTextWriter hw = new HtmlTextWriter(sw);
            dTable.RenderControl(hw);
            string style = @"<style> .textmode { mso-number-format:'@; } </style>";
            Response.Write(style);
            Response.Output.Write(sw.ToString());
            Response.Flush();
            Response.End();
        }
    }