void getUrl()
        {
            WebClient web = new WebClient();
            string html = web.DownloadString("https://www.blocket.se/stockholm/Playstation_3_Slim_med_spel_Nyskick_86359636.htm?ca=18&w=3");

            Match pris = Regex.Match(html, @"h3 nmb>(.?)</div>", RegexOptions.Singleline);

            textBox1.Text = html.ToString();

        }