private void button_Click(object sender, RoutedEventArgs e)
        {
            int k = 0;
            List my = new List();
            WebClient w = new WebClient();
            string page = w.DownloadString("http://ru.aliexpress.com/category/202004935/gps-accessories/2.html?site=rus&shipCountry=ua&g=y&needQuery=n&tag=");
            string name = "title=\"(.*?)</";
            foreach(Match match in Regex.Matches(page, name))
            {
                k++;
                if (k%2!= 0)
                {                  
                listBox.Items.Add(match.Groups[1].Value);
                }
            }
          
        }