public async void UpdateStatus(Object stateInfo)
        {
            if (current_dots == 3)
            {
                current_dots = 0;
            }
            else
            {
                current_dots++;
            }
            string json = await WeatherConnection.GetWroclawWeather();

            JObject data = JObject.Parse(json);
            string  dots = new string('.', current_dots);
            string  tmp  = "Pogoda we Wroclawiu:" + (string)data["weather"][0]["description"] + ", temperatura:" +
                           (string)data["main"]["temp"] + "[K]" + dots;

            sender.UpdateProgressBlock(tmp);
        }