TableOfEntries Class

public sealed class TableOfEntries : Block, 
	IContentElement

Public NotInheritable Class TableOfEntries
	Inherits Block
	Implements IContentElement

using System;
using System.Linq;
using SautinSoft.Document;

namespace Example
{
    class Program
    {
        static void Main(string[] args)
        {
            // Get your free trial key here:   
            // https://sautinsoft.com/start-for-free/

            TOC();
        }

        /// <summary>
        /// Create a document with table of content.
        /// </summary>
        /// <remarks>
        /// Details: https://sautinsoft.com/products/document/help/net/developer-guide/table-of-contents-toc.php
        /// </remarks>
        public static void TOC()
        {
            string resultFile = "Table-Of-Contents.docx";

            // Let's create a simple document.
            DocumentCore dc = new DocumentCore();

            // Create and add Heading 1 style for TOC.
            ParagraphStyle Heading1Style = (ParagraphStyle)Style.CreateStyle(StyleTemplateType.Heading1, dc);
            dc.Styles.Add(Heading1Style);

            // Create and add Heading 2 style for TOC.
            ParagraphStyle Heading2Style = (ParagraphStyle)Style.CreateStyle(StyleTemplateType.Heading2, dc);
            dc.Styles.Add(Heading2Style);

            // Add new section.
            Section section = new Section(dc);
            dc.Sections.Add(section);

            // Add TOC title in the DOCX document.
            section.Blocks.Add(new Paragraph(dc, "Table of Contents"));

            // Create and add new TOC.
            section.Blocks.Add(new TableOfEntries(dc, FieldType.TOC));

            section.Blocks.Add(new Paragraph(dc, "The end."));

            // Let's add a page break into our paragraph.
            section.Blocks.Add(
                    new Paragraph(dc,
                    new SpecialCharacter(dc, SpecialCharacterType.PageBreak)));

            // Add document content.
            // Add Chapter 1
            section.Blocks.Add(
                new Paragraph(dc, "Chapter 1")
                {
                    ParagraphFormat =
                    {
                Style = Heading1Style
                    }
                });

            // Add SubChapter 1-1
            section.Blocks.Add(
                        new Paragraph(dc, String.Format("Subchapter 1-1"))
                        {
                            ParagraphFormat =
                            {
                    Style = Heading2Style
                            }
                        });
            // Add the content of Chapter 1 / Subchapter 1-1
            section.Blocks.Add(
                        new Paragraph(dc,
                            "�Document .Net� will help you in development of applications which operates with DOCX, RTF, PDF and Text documents. After adding of the reference to (SautinSoft.Document.dll) - it's 100% C# managed assembly you will be able to create a new document, parse an existing, modify anything what you want."));

            // Let's add an another page break into our paragraph.
            section.Blocks.Add(
                   new Paragraph(dc,
                   new SpecialCharacter(dc, SpecialCharacterType.PageBreak)));

            // Add document content.
            // Add Chapter 2
            section.Blocks.Add(
                     new Paragraph(dc, "Chapter 2")
                     {
                         ParagraphFormat =
                         {
                Style = Heading1Style
                         }
                     });

            // Add SubChapter 2-1
            section.Blocks.Add(
                new Paragraph(dc, String.Format("Subchapter 2-1"))
                {
                    ParagraphFormat =
                    {
                    Style = Heading2Style
                    }
                });

            // Add the content of Chapter 2 / Subchapter 2-1
            section.Blocks.Add(
                        new Paragraph(dc,
                            "Requires only .Net 4.0 or above. Our product is compatible with all .Net languages and supports all Operating Systems where .Net Framework can be used. Note that �Document .Net� is entirely written in managed C#, which makes it absolutely standalone and an independent library. Of course, No dependency on Microsoft Word."));

            // Update TOC (TOC can be updated only after all document content is added).
            var toc = (TableOfEntries)dc.GetChildElements(true, ElementType.TableOfEntries).FirstOrDefault();
            toc.Update();

            // Update TOC's page numbers.
            // Page numbers are automatically updated in that case.
            dc.GetPaginator(new PaginatorOptions() { UpdateFields = true });

            // Save DOCX to a file
            dc.Save(resultFile);

            // Open the result for demonstration purposes.
            System.Diagnostics.Process.Start(new System.Diagnostics.ProcessStartInfo(resultFile) { UseShellExecute = true });
        }
    }
}

Option Infer On

Imports System
Imports System.Linq
Imports SautinSoft.Document

Module Sample
    Sub Main()
        TOC()
    End Sub
    ''' Get your free trial key here:   
    ''' https://sautinsoft.com/start-for-free/
    ''' <summary>
    ''' Create a document with table of content.
    ''' </summary>
    ''' <remarks>
    ''' Details: https://sautinsoft.com/products/document/help/net/developer-guide/table-of-contents-toc.php
    ''' </remarks>
    Sub TOC()
        Dim resultFile As String = "Table-Of-Contents.docx"

        ' Let's create a simple document.
        Dim dc As New DocumentCore()

        ' Create and add Heading 1 style for TOC.
        Dim Heading1Style As ParagraphStyle = CType(Style.CreateStyle(StyleTemplateType.Heading1, dc), ParagraphStyle)
        dc.Styles.Add(Heading1Style)

        ' Create and add Heading 2 style for TOC.
        Dim Heading2Style As ParagraphStyle = CType(Style.CreateStyle(StyleTemplateType.Heading2, dc), ParagraphStyle)
        dc.Styles.Add(Heading2Style)

        ' Add new section.
        Dim section As New Section(dc)
        dc.Sections.Add(section)

        ' Add TOC title in the DOCX document.
        section.Blocks.Add(New Paragraph(dc, "Table of Contents"))

        ' Create and add new TOC.
        section.Blocks.Add(New TableOfEntries(dc, FieldType.TOC))

        section.Blocks.Add(New Paragraph(dc, "The end."))

        ' Let's add a page break into our paragraph.
        section.Blocks.Add(New Paragraph(dc, New SpecialCharacter(dc, SpecialCharacterType.PageBreak)))

        ' Add document content.
        ' Add Chapter 1
        section.Blocks.Add(New Paragraph(dc, "Chapter 1") With {
            .ParagraphFormat = New ParagraphFormat With
            {.Style = Heading1Style}
        })

        ' Add SubChapter 1-1
        section.Blocks.Add(New Paragraph(dc, String.Format("Subchapter 1-1")) With {
            .ParagraphFormat = New ParagraphFormat With
             {.Style = Heading2Style}
        })
        ' Add the content of Chapter 1 / Subchapter 1-1
        section.Blocks.Add(New Paragraph(dc, "�Document .Net� will help you in development of applications which operates with DOCX, RTF, PDF and Text documents. After adding of the reference to (SautinSoft.Document.dll) - it's 100% C# managed assembly you will be able to create a new document, parse an existing, modify anything what you want."))

        ' Let's add an another page break into our paragraph.
        section.Blocks.Add(New Paragraph(dc, New SpecialCharacter(dc, SpecialCharacterType.PageBreak)))

        ' Add document content.
        ' Add Chapter 2
        section.Blocks.Add(New Paragraph(dc, "Chapter 2") With {
            .ParagraphFormat = New ParagraphFormat With
            {.Style = Heading1Style}
        })

        ' Add SubChapter 2-1
        section.Blocks.Add(New Paragraph(dc, String.Format("Subchapter 2-1")) With {
            .ParagraphFormat = New ParagraphFormat With
            {.Style = Heading2Style}
        })

        ' Add the content of Chapter 2 / Subchapter 2-1
        section.Blocks.Add(New Paragraph(dc, "Requires only .Net 4.0 or above. Our product is compatible with all .Net languages and supports all Operating Systems where .Net Framework can be used. Note that �Document .Net� is entirely written in managed C#, which makes it absolutely standalone and an independent library. Of course, No dependency on Microsoft Word."))

        ' Update TOC (TOC can be updated only after all document content is added).
        'INSTANT VB NOTE: The variable toc was renamed since Visual Basic does not handle local variables named the same as class members well:
        Dim toc_Renamed = CType(dc.GetChildElements(True, ElementType.TableOfEntries).FirstOrDefault(), TableOfEntries)
        toc_Renamed.Update()

        ' Update TOC's page numbers.
        ' Page numbers are automatically updated in that case.
        dc.GetPaginator(New PaginatorOptions() With {.UpdateFields = True})

        ' Save DOCX to a file
        dc.Save(resultFile)

        ' Open the result for demonstration purposes.
        System.Diagnostics.Process.Start(New System.Diagnostics.ProcessStartInfo(resultFile) With {.UseShellExecute = True})
    End Sub
End Module