Cookie在域中的读写实现顶级域共享

Cookie在域中的读写实现顶级域共享 
读写Cookie
        写入Cookies信息写入Cookies信息#region 写入Cookies信息
        /**//**//**//// <summary>
        /// 写入Cookies信息
        /// </summary>
        private void WriteCookies(string uname,string upwd)
        {
            //写入Cookies中帐户信息
//            HttpCookieCollection Colcookies = Request.Cookies;    
            Colcookies = Request.Cookies;                        //获得Cookies集合
            HttpCookie Cookies = new HttpCookie("IRMEmail");    //创建Cookies
            Cookies.Value = uname;            //设置Cookies值
            Cookies.Domain = labDomain.Text.Trim();            //设置Cookies域
            Colcookies.Add(Cookies);                            //加入Cookies集合
            Response.Cookies.Add(Cookies);

            //写入Cookies中密码信息
            Cookies = new HttpCookie("IRMPassword");
            Cookies.Value = upwd;
            Cookies.Domain = labDomain.Text.Trim();
            Colcookies.Add(Cookies);
            Response.Cookies.Add(Cookies);
        }
        #endregion

        读取Cookies信息读取Cookies信息#region 读取Cookies信息
        /**//**//**//// <summary>
        /// 读取Cookies信息
        /// </summary>
        private void ReadCookies()
        {
            StringBuilder sbText = new StringBuilder();
            Colcookies = Request.Cookies;
            int CookiesCount = Colcookies.Count;    //Cookies中的键值数目
            for(int i=0;i<CookiesCount;i++)
            {
                string strName    = Colcookies[i].Name;
                string strValue    = Colcookies[i].Value;
                if((strName == "IRMEmail") || (strName == "IRMPassword"))
                {
                    sbText.Append(strName + ":" + strValue);
                    sbText.Append("<br>");
                }        
            }
            sbText.Append("<br>");
            LblRequest.Text=sbText.ToString();
        }
        #endregion