动态标题的显示

 private string connStr = ConfigurationManager.ConnectionStrings["ruanmou"].ToString();
        //2：实例化一个SqlConnection对象，用于和数据库建立起连接
        SqlConnection con;
        SqlCommand cmd;
        SqlDataReader read;

        private SqlConnection ConDb()
        {
            con = new SqlConnection(connStr);
            con.Open();
            return con;
        }
        public string SqlWhere()
        {
            StringBuilder sb = new StringBuilder();
            sb.Append(string.Format("select top {0} * from RNews where 1=1 order by NewsId desc", 4));
            return sb.ToString();
        }
        public string Bind()
        {
           
            StringBuilder sb = new StringBuilder();
            //List<RNews> list = RNewsDAL.m_rnews.GetList(SqlWhere());
            //foreach (var a in list)
            //{
            //    sb.Append(a.Title);
            //}
            //return sb.ToString();
            using (ConDb())
            {
                string sql = SqlWhere();
                cmd = new SqlCommand(SqlWhere(), con);
                using (read = cmd.ExecuteReader())
                {
                    if (read.Read())
                    {
                        foreach (var news in read)
                        {
                            sb.Append(string.Format(@" <li><a target=""_blank"" href=""NewsPage.aspx?NewsId={0}"">【新闻】{1}</a></li> ", read["NewsId"], read["Title"]));

                        }
                    }

                } return sb.ToString();
            }