Label print using crystal report in asp.net c#?

Question

i want to print one report  multiple times on user input number of page to be print,  as like in this video....here is link of that video Https://www.youtube.com/watch?v=i7NYevleSA0  .

 

current;y i am printing one report on one page using crystal report ,,,,

here is my code 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Configuration;
using System.Data;
using System.Data.SqlClient;
using System.IO;
using System.Globalization;
using Microsoft;
using Salesorder;
using CrystalDecisions.CrystalReports.Engine;
using System.Drawing.Printing;
namespace Salesorder
{
    public partial class Print : System.Web.UI.Page
    {
        SqlConnection con = new SqlConnection();
        ReportDocument rpt = new ReportDocument();
        protected void Page_Load(object sender, EventArgs e)
        {
            //if (!IsPostBack)
            {
                rpt.Dispose();
                rpt.Close();
                // loadReport();
            }



        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            rpt.Dispose();
            rpt.Close();
            con = new SqlConnection("Data Source=DESKTOP-5PJ76B9;Integrated Security=SSPI;Initial Catalog=SilverProduction;MultipleActiveResultSets=True;");
            try
            {
                con.Open();
                SqlCommand cmd = new SqlCommand("spbigbaleprint", con);
                cmd.CommandType = CommandType.StoredProcedure;

                // cmd.Parameters.AddWithValue("@BID", Request.QueryString["BID"]);
                //  cmd.Parameters.AddWithValue("@BID", TextBox2.Text);
                SqlDataAdapter adp = new SqlDataAdapter(cmd);
                DataSet ds = new DataSet();


                adp.Fill(ds);
                //   for (int i = 0; i < int.Parse(TextBox1.Text); i++)
                // {var dialog = new PrintDialog();


                rpt.Load(Server.MapPath("~/CRBigbalprnt.rpt"));
                rpt.SetDataSource(ds.Tables["Table"]);

              //  PrintDocument pd = new PrintDocument();
              //  rpt.PrintOptions.PrinterName = pd.PrinterSettings.PrinterName;

                ReportDocument rd = new ReportDocument();
                // rd.PrintToPrinter(Convert.ToInt32(TextBox1.Text.Trim()), false, 0, 0);
                CrystalReportViewer1.ReportSource = rpt;
                rpt.ExportToHttpResponse(CrystalDecisions.Shared.ExportFormatType.PortableDocFormat, Response, false, "Bigbalprd");

            }


            catch (Exception ex) { }
        }



        protected void CRBigview_Unload(object sender, EventArgs e)
        {


            if (rpt != null)
            {
                rpt.Close();
                rpt.Dispose();

            }
        }

    }
}