Literal StringBuilder

     using (var cnn = new SqlConnection(CAMINHO))
            {
                cnn.Open();
                using (var cmd = new SqlCommand("SELECT * FROM UNI_TB_MACROS", cnn))
                {
                    using (SqlDataReader dr = cmd.ExecuteReader())
                    {

                        if (dr.HasRows)
                        {
                            while (dr.Read())
                            {

                                Int32 id_macro = Convert.ToInt32(dr["id_macro"]);
                                String ds_macro = dr["ds_macro"].ToString();
                                Int32 qtde = Convert.ToInt32(dr["qtde"]);

                                StringBuilder sbTabela = new StringBuilder();

                                sbTabela.Append ("<table id='table' border='2'>");
                                sbTabela.Append ("<tr align='center' bgcolor='#FFCC66'><td colspan='" + qtde + "'>" + ds_macro + "</td></tr>");
                                sbTabela.Append ("</table>");

                                LiteralTable.Text = sbTabela.ToString();

                            }
                        }
                    }
                }
            }