How to scrape web data using htmlagilitypack

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C#

Hi, I am facing a problem while creating a project that scraps data from some random website. My problem is I can't get any result after entering the following code. Please, help me to correct my code.


NOTE:- I want to see scrap data in the listbox. but can't see. Please, suggest the appropriate answer. Thanks.

What I have tried:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using HtmlAgilityPack;
using System.Net;



namespace Project_1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            ServicePointManager.Expect100Continue = true;
            ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls12;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            string path="/html/body/div[1]/div/div[3]/div/div[2]/div[1]/div[1]/div[2]";
            HtmlWeb myweb = new HtmlWeb();

           HtmlAgilityPack.HtmlDocument doc = myweb.Load("https://www.practo.com/jamnagar/doctors");

           var HeaderNames =( doc.DocumentNode.SelectNodes(path));

           if (HeaderNames != null)
           {
               var mylist = HeaderNames.ToList();



               foreach (var item in mylist)
                   if (item != null)
                   {
                       listBox1.Items.Add(item);
                   }

           }
        }
    }
}