入门级 求赐教

protected void Dispbook()
    {
        string strconn = "server=(local);database=dangdang;uid=sa;pwd=";
        SqlConnection sqlconn = new SqlConnection(strconn);
        sqlconn.Open();
        string sqlsel = "select*from book";
        SqlDataAdapter ada = new SqlDataAdapter(sqlsel, sqlconn);
        DataSet ds = new DataSet();
        ada.Fill(ds, "book");
        GridView1.DataSource = ds.Tables["book"].DefaultView;
        GridView1.DataBind();
        sqlconn.Close();
        Dispbook();
    }


连接不得的提示是  ：未处理的“System.StackOverflowException”类型的异常出现在 mscorlib.dll 中。
是哪里错了的