c# – 内容表正确打印PDF但不适用于RTF

这两个文件的内容表代码是：

public static void DefineTableOfContents(Document document)
    {
        Section section = document.LastSection;

        section.AddPageBreak();
        Paragraph paragraph = section.AddParagraph("Table of Contents");
        paragraph.Format.Font.Size = 14;
        paragraph.Format.Font.Bold = true;
        paragraph.Format.SpaceAfter = 24;
        paragraph.Format.OutlineLevel = OutlineLevel.Level1;

        paragraph = section.AddParagraph(); 
        paragraph.Style = "TOC";
        Hyperlink hyperlink = paragraph.AddHyperlink("ParaBookmark");
        hyperlink.AddText("Paragraphst");
        hyperlink.AddPageRefField("ParaBookmark");

        paragraph = section.AddParagraph();
        paragraph.Style = "TOC";
        hyperlink = paragraph.AddHyperlink("AJBookmark");
        hyperlink.AddText("AJt");
        hyperlink.AddPageRefField("AJBookmark");

        paragraph = section.AddParagraph();
        paragraph.Style = "TOC";
        hyperlink = paragraph.AddHyperlink("TablesBookmark");
        hyperlink.AddText("Tablest");
        hyperlink.AddPageRefField("TablesBookmark");

        paragraph = section.AddParagraph();
        paragraph.Style = "TOC";
        hyperlink = paragraph.AddHyperlink("ChartsBookmark"); 
        hyperlink.AddText("Chartst");
        hyperlink.AddPageRefField("ChartsBookmark"); 
    }

对于Pdf,代码工作正常,所有页码都正确显示,但对于RTF文件,我们得到如下输出：

Table of Contents
Paragraphs............................. < Please update this field. >
AJ..................................... < Please update this field. >
Tables................................. < Please update this field. >
Charts................................. < Please update this field. >

谷歌搜索后,我开始明白,为了使RTF的页码显示在TOC上,我们必须在MS Word中手动更新整个文档,方法是使用ctrl A然后使用F9.

是否有任何编程方式,以便我可以获得RTF页码的正确内容表,以便我们不需要手动更新文档？