void Application_Start(object sender, EventArgs e)
    {
        RegisterRoutes(System.Web.Routing.RouteTable.Routes);
    }

    void RegisterRoutes(System.Web.Routing.RouteCollection routes)
    {
         string sql = string.Format("SELECT urlName FROM list_materials");
        _db.OpenConnection(pageError);
        SqlDataReader myReader = _db.SelectCommandToReader(sql, pageError);
        while (myReader.Read())
        {
            routes.MapPageRoute("dynamic" + cur.ToString(),
                Server.HtmlDecode(myReader["urlName"].ToString()) + "/", "~/Material.aspx");
            cur++;
        }
        myReader.Close();
......
    }