PrintDocument supports the automatic generation of table of contents (TOC). The RenderToc class is used to represent the table of contents in PrintDocument. This class is derived from RenderArea and adds TOC-specific features.
The individual items within the TOC are represented by the RenderTocItem (derived from RenderParagraph). Each TOC item holds a hyperlink pointing to a location in the document so, the same mechanism is used for connecting TOC items to document content as for the hyperlinks.
The GIF below depicts the table of contents feature in PrintDocument.
To add a table of contents to your document, do the following:
The code snippet below shows how to add Table of Contents to a PrintDocument.
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private void Window_Loaded(object sender, RoutedEventArgs e) { C1PrintDocument doc = new C1PrintDocument(); MakeDoc1(doc); doc.Generate(); documentViewer.Document = doc.FixedDocumentSequence; } private void MakeDoc1(C1PrintDocument doc) { // create the document title RenderParagraph docTitle = new RenderParagraph(); docTitle.Content.AddText("This document demonstrates the use of "); docTitle.Content.AddText("RenderToc"); docTitle.Content.AddText(" object to create the table of content."); doc.Body.Children.Add(docTitle); // in this cycle we generate the document chapters, each chapter // has some parts, each chapter and part has an entry in the RenderToc object const int chapterCount = 10; // chapter count const int partCount = 5; // parts count // generate sample text that will serve as introduction to chapter StringBuilder chapterIntroduction = new StringBuilder("Introduction"); for (int i = 0; i < 40; i++) chapterIntroduction.Append(" introduction"); chapterIntroduction.Append(".\r\n"); // generate sample text that will be displayed as content of part of chapter StringBuilder partContent = new StringBuilder("Content of part"); for (int i = 0; i < 80; i++) partContent.Append(" content of part"); partContent.Append(".\r\n"); // create an instance of RenderToc object RenderToc toc = new RenderToc(); toc.BreakAfter = BreakEnum.Page; // Create styles for chaprters and parts C1.C1Preview.Style chapterTitleStyle = doc.Style.Children.Add(); //chapterTitleStyle.Font = new Font("Verdana", 15, FontStyle.Bold); //chapterTitleStyle.BackColor = Color.LightSteelBlue; chapterTitleStyle.Spacing.Bottom = "5mm"; C1.C1Preview.Style partTitleStyle = doc.Style.Children.Add(); partTitleStyle.Font = new Font("Tahoma", 13); partTitleStyle.Spacing.Top = "3mm"; partTitleStyle.Spacing.Bottom = "1mm"; // loop over chapters for (int c = 1; c < chapterCount; c++) { // each chapter will be represented as a RenderArea object RenderArea chapter = new RenderArea(); if (c < chapterCount - 1) chapter.BreakAfter = BreakEnum.Page; RenderText chapterTitle = new RenderText(string.Format("Chapter {0}", c), chapterTitleStyle); chapter.Children.Add(chapterTitle); chapter.Children.Add(new RenderText(chapterIntroduction.ToString(), AlignHorzEnum.Justify)); // add item for the chapter to the RenderToc toc.AddItem(chapterTitle.Text, chapterTitle, 1); // loop over the current chapter's parts for (int p = 1; p < partCount; p++) { RenderText partTitle = new RenderText(string.Format("Chapter {0} part {1}", c, p), partTitleStyle); chapter.Children.Add(partTitle); chapter.Children.Add(new RenderText(partContent.ToString(), AlignHorzEnum.Justify)); // add item for the chapter part to the RenderToc toc.AddItem(string.Format("Part {0}", p), partTitle, 2); } // add the chapter to the document doc.Body.Children.Add(chapter); } // insert the RenderToc into the document immediately after the title doc.Body.Children.Insert(1, toc); } |