Set bullet style 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
            Microsoft.Office.Interop.Word.Application wordApp = Application;
            wordApp.Documents.Open("../../Word.docx");

            //Get the count of paragraphs
            int count = this.Application.ActiveDocument.Paragraphs.Count;

            //Set Bullet Style
            for (int i = 1; i <= this.Application.ActiveDocument.Paragraphs.Count; i++)
            {
                Word.Range range = this.Application.ActiveDocument.Paragraphs[i].Range;
                Word.ListFormat listFormat = range.ListFormat;
                listFormat.ApplyBulletDefault();
            }       
        }

        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;
using Spire.Doc.Documents;

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

            //Set Bullet Style
            foreach (Section section in doc.Sections)
            {
                for (int i = 0; i < section.Paragraphs.Count; i++)
                {
                    Paragraph p = section.Paragraphs[i];
                    p.ListFormat.ApplyBulletStyle();
                }
            }  
        
            //Save and Launch
            doc.SaveToFile("Bullet.docx", FileFormat.Docx);
            System.Diagnostics.Process.Start("Bullet.docx");

        }
    }
}

SetWordBulletStyle.zip

Set bullet style in word document

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