ASP.NET判斷是否是行動裝置訪問

        /// <summary>        /// 判斷是否是行動裝置訪問。        /// </summary>        public static bool IsMobile        {            get            {                bool result = false;                HttpContext context = HttpContext.Current;                if (context != null)                {                    HttpRequest request = context.Request;                    string useragent = request.UserAgent;                    if (useragent.IndexOf("android") > -1 || useragent.IndexOf("ipod") > -1 || useragent.IndexOf("iphone") > -1 || useragent.IndexOf("ipad") > -1 || useragent.IndexOf("ucweb") > -1)                    {                        result = true;                    }                }                return result;            }        }