iTextSharp.text.Font.IsUnderlined C# (CSharp) Метод

        public bool IsUnderlined() {
            if (style == UNDEFINED) {
                return false;
            }
            return (style &    UNDERLINE) == UNDERLINE;
        }
    

        private void btnExportar_Click(object sender, EventArgs e)
        {
            string fileName  = "ReporteVentas.pdf";
            string titulo    = "Reporte de Ventas";
            string paragraph = $"Ventas realizadas desde la fecha {dtFechaDesde.Value} hasta {dtFechaHasta.Value}";

            try
            {
                if (grillaReporte.Rows.Count > 0)
                {
                    SaveFileDialog sfd = new SaveFileDialog();
                    sfd.Filter   = "PDF (.pdf)|.pdf";
                    sfd.FileName = fileName;
                    bool fileError = false;
                    if (sfd.ShowDialog() == DialogResult.OK)
                    {
                        if (File.Exists(sfd.FileName))
                        {
                            File.Delete(sfd.FileName);
                        }
                        if (!fileError)
                        {
                            PdfPTable pdfTable = new PdfPTable(grillaReporte.Columns.Count);
                            pdfTable.DefaultCell.Padding = 3;
                            pdfTable.WidthPercentage     = 100;
                            pdfTable.HorizontalAlignment = Element.ALIGN_LEFT;

                            foreach (DataGridViewColumn column in grillaReporte.Columns)
                            {
                                PdfPCell cell = new PdfPCell(new Phrase(column.HeaderText));
                                pdfTable.AddCell(cell);
                            }

                            foreach (DataGridViewRow row in grillaReporte.Rows)
                            {
                                foreach (DataGridViewCell cell in row.Cells)
                                {
                                    pdfTable.AddCell(cell.Value.ToString());
                                }
                            }

                            using (FileStream stream = new FileStream(sfd.FileName, FileMode.Create))
                            {
                                Document pdfDoc = new Document(PageSize.A4, 10f, 20f, 20f, 10f);
                                PdfWriter.GetInstance(pdfDoc, stream);

                                pdfDoc.Open();

                                //Titulo y parrafo.
                                iTextSharp.text.Font titleFont = FontFactory.GetFont("Arial", 26);
                                titleFont.IsUnderlined();

                                iTextSharp.text.Font regularFont = FontFactory.GetFont("Arial", 15);

                                Paragraph title = new Paragraph(titulo, titleFont);
                                title.Alignment = Element.ALIGN_CENTER;
                                pdfDoc.Add(title);

                                pdfDoc.Add(new Chunk("\n"));

                                Paragraph text = new Paragraph(paragraph, regularFont);
                                pdfDoc.Add(text);

                                pdfDoc.Add(new Chunk("\n"));

                                pdfDoc.Add(pdfTable);
                                pdfDoc.Close();
                                stream.Close();
                            }

                            MessageBox.Show("Exportacion realizada con exito.", "OK", MessageBoxButtons.OK, MessageBoxIcon.Information);
                        }
                    }
                }
                else
                {
                    throw new Exception("No hay registros para exportar.");
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message.ToString(), "Error", MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }