Crystal Report Printing On server

protected void Button3_Click(object sender, EventArgs e)
    {
//SqlCommand cmd = null;
        SqlDataAdapter da = null;
        DataTable dt = new DataTable();
        DataTable dt1 = new DataTable();

       con.Open();

       
        SqlCommand cmd = new SqlCommand("SELECT * FROM Transactions WHERE report_type = @report_type ");

        cmd.Connection = con;
        cmd.Parameters.Add("@report_type", SqlDbType.NVarChar).Value = TextBox1.Text;
        

        da = new SqlDataAdapter(cmd);
        dt.Clear();
        da.Fill(dt);
        if (dt.Rows.Count > 0)
        {

            ReportDocument Report = new ReportDocument();
            Report.Load(Server.MapPath("~/Report.rpt"));
            Report.SetDataSource(dt);
            TableLogOnInfos crtableLogoninfos = new TableLogOnInfos();
            TableLogOnInfo crtableLogoninfo = new TableLogOnInfo();
            ConnectionInfo crConnectionInfo = new ConnectionInfo();
            Tables CrTables;
            Report.SetDatabaseLogon("sa", "123456789", @"TRAINING-ROOM-8", "newMreport");
            CrystalReportViewer1.ReportSource = Report;
            CrystalReportViewer1.ReportSource = Report;
            CrystalReportViewer1.DataBind();
            CrTables = Report.Database.Tables;
            foreach (CrystalDecisions.CrystalReports.Engine.Table CrTable in CrTables)
            {
                crtableLogoninfo = CrTable.LogOnInfo;
                crtableLogoninfo.ConnectionInfo = crConnectionInfo;
                CrTable.ApplyLogOnInfo(crtableLogoninfo);
            }

            Report.Refresh();
            Report.PrintToPrinter(1, true, 1, 1);
            con.Close();
        }
    }