Cookie存取有关问题

HttpCookie Cookie = CookiesHelper.GetCookie("UserInfo");                //有cookie值的话就取出来                if (Cookie != null)                {                    this.txtUserName.Value = HttpUtility.UrlDecode(Cookie.Values["uName"]);                    this.txtPwd.Attributes.Add("value", Cookie.Values["Pwd"]);                }

// 是否选中复选框(默认为true)                            if (this.chk.Checked == true)                            {                                //获得cookie                                HttpCookie Cookie = CookiesHelper.GetCookie("UserInfo");                                //string cooke = HttpUtility.UrlDecode(CookiesHelper.GetCookie("UserInfo").Values["uName"]);                                if (Cookie == null)                                {                                    Cookie = new HttpCookie("UserInfo");                                    Cookie.Values.Add("uName", HttpUtility.UrlEncode(uName));                                    Cookie.Values.Add("Pwd", Pwd);                                    //设置Cookie过期时间                                    Cookie.Expires = DateTime.Now.AddDays(2);                                    CookiesHelper.AddCookie(Cookie);                                }                                else if (!Cookie.Values["uName"].Equals(uName))                                {                                    CookiesHelper.SetCookie("UserInfo", "uName", uName);                                }                                Response.Redirect("~/Menu/Index_Menu.htm");

/// <summary>        /// 添加Cookie        /// </summary>        /// <param name="cookie"></param>        public static void AddCookie(HttpCookie cookie)        {            HttpResponse response = HttpContext.Current.Response;            if (response != null)            {                //指定客户端脚本是否可以访问[默认为false]                cookie.HttpOnly = true;                //指定统一的Path，比便能通存通取                cookie.Path = "/";                //设置跨域,这样在其它二级域名下就都可以访问到了                //cookie.Domain = "chinesecoo.com";                response.AppendCookie(cookie);            }        }/// <summary>        /// 设置Cookie子键的值        /// </summary>        /// <param name="cookieName"></param>        /// <param name="key"></param>        /// <param name="value"></param>        public static void SetCookie(string cookieName, string key, string value)        {            SetCookie(cookieName, key, value, null);        }/// <summary>        /// 设置Cookie        /// </summary>        /// <param name="cookieName"></param>        /// <param name="key"></param>        /// <param name="value"></param>        /// <param name="expires"></param>        public static void SetCookie(string cookieName, string key, string value, DateTime? expires)        {            HttpResponse response = HttpContext.Current.Response;            if (response != null)            {                HttpCookie cookie = response.Cookies[cookieName];                if (cookie != null)                {                    if (!string.IsNullOrEmpty(key) && cookie.HasKeys)                        cookie.Values.Set(key, value);                    else                        if (!string.IsNullOrEmpty(value))                            cookie.Value = value;                    if (expires != null)                        cookie.Expires = expires.Value;                    response.SetCookie(cookie);                }            }        }