string tabelaHtml = "<table>" +
                "" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<col width = \"14%\" >" +
                "<tr>" +
                "<td>NumSeq</td>" +
                "<td>DataPrevPublic</td>" +
                "<td>DataGerPrevia</td>" +
                "<td>DataPublicDef</td>" +
                "<td>DescrEstado</td>" +
                "<td>ExistePDF?</td>" +
                "<td>DescrTipo</td>" +
                "</tr>";

            // para criar uma linha:

            tabelaHtml += "<tr>" +
                "<td>1</td>" +
                "<td>20/09/2019</td>" +
                "<td>20/9/2019 00:12</td>" +
                "<td>---</td>" +
                "<td>PREVIA</td>" +
                "<td>SIM</td>" +
                "<td>AUTOMATICA</td>" +
                "</tr>";

            tabelaHtml += "</table>";

            this.AddSuccessMessage("Teste executado com sucesso!<br/>" + tabelaHtml);