问防止MigraDoc中的段落分裂

EN

        Document doc = new Document();
        Section section = doc.AddSection();
        Paragraph paragraph = section.AddParagraph();
        paragraph.AddLineBreak();
        paragraph.AddLineBreak();
        paragraph.AddLineBreak();

        paragraph.Format.TabStops.ClearAll();
        paragraph.Format.TabStops.AddTabStop("16cm", TabAlignment.Right, TabLeader.Lines);
        paragraph.AddTab();

        for (int i = 0; i < 20; i++)
        {

            Paragraph paragraphBody = paragraph.Section.AddParagraph();

            FormattedText ft = paragraphBody.AddFormattedText("This is a title", TextFormat.Bold);
            ft.Italic = true; ft.Font.Size = 11;
            ft.Font.Color = Color.FromRgbColor((byte)255, Color.Parse("0x1E9BC6")); //equal to rgb(30, 155, 196);
            ft.AddLineBreak();

            //--detail:---adding text---------------------------------

            String DetailText = "This is detail. This is detail. This is detail.This is detail.This is detail.This is detail.This is detail.This is detail. This is detail. This is detail. This is detail. This is detail. This is detail. This is detail. This is detail. This is detail. ";

            FormattedText ftdet;
            ftdet = paragraphBody.AddFormattedText(DetailText, TextFormat.NotBold);
            ftdet.Font.Size = 10;
            ftdet.Font.Name = "Arial";
            ftdet.AddLineBreak();
            ftdet.AddLineBreak();

            ftdet.AddText("Event Date: " + DateTime.Now.ToString("MM/dd/yyyy h:mm tt"));
        }

        PdfDocumentRenderer pdfRenderer = new PdfDocumentRenderer(false, PdfFontEmbedding.Always);
        pdfRenderer.Document = doc;
        pdfRenderer.RenderDocument();

        //Save the PDF to a file:
        string filename = "e:\\Report" +    DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".pdf";
pdfRenderer.PdfDocument.Save(filename);

        Process.Start(filename);