Insert bookmark in word document

VSTO
Spire.Doc
Download Sample Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Word = Microsoft.Office.Interop.Word;
using Office = Microsoft.Office.Core;
using Microsoft.Office.Tools.Word;

namespace VSTO
{
    public partial class ThisAddIn
    {
        private void ThisAddIn_Startup(object sender, System.EventArgs e)
        {
            //Open document
            Word.Application wordApp = Application;
            wordApp.Documents.Open("../../Sample.docx");

            Document exd = Globals.Factory.GetVstoObject(this.Application.ActiveDocument);

            //Add bookmark
            Bookmark firstParagraph = exd.Controls.AddBookmark(exd.Paragraphs[1].Range, "MyBookmark");
        }

        private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
        {
        }

        #region VSTO generated code

        /// <summary>
        /// Required method for Designer support - do not modify
        /// the contents of this method with the code editor.
        /// </summary>
        private void InternalStartup()
        {
            this.Startup += new System.EventHandler(ThisAddIn_Startup);
            this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
        }
        
        #endregion
    }
}

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Spire.Doc;

namespace Spire.Doc
{
    class Program
    {
        static void Main(string[] args)
        {
            //Load Document
            Document document = new Document();
            document.LoadFromFile("../../Sample.docx");

            //Insert Bookmark
            Section section = document.Sections[0];
            section.Paragraphs[1].AppendBookmarkStart("MyBookmark");
            section.Paragraphs[3].AppendBookmarkEnd("MyBookmark");

            //Save and Launch
            document.SaveToFile("Bookmark.docx");
            System.Diagnostics.Process.Start("Bookmark.docx");
        }
    }
}

InsertBookmark.zip

Insert bookmark in word document

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