Ava.cs

using System;
using System.Collections.Generic;
using System.Net;
using HtmlAgilityPack;

namespace ConsoleApplication
{
  class Program
  {
    static void Main(string[] args)
    {
      string websiteUrl = "";
      string xpath = "//*[@id=\"price\"]/text()";
      //*[@id="price"]/text()

      List<string> content = new List<string>();

      using (WebClient client = new WebClient())
      {
        client.Headers.Add("user-agent", "Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20100101 Firefox/21.0");
        string pageContent = client.DownloadString(websiteUrl);

        HtmlDocument doc = new HtmlDocument();
        doc.LoadHtml(pageContent);
        foreach (HtmlNode scrape in doc.DocumentNode.SelectNodes(xpath))
        {
          content.Add(scrape.InnerText);
        }
      }

      string csvLine = string.Join(",", content.ToArray());
      Console.WriteLine(csvLine);
      Console.ReadLine();
    }
  }
}