public async void UpdateBus() { HttpClient client = new HttpClient(); client.DefaultRequestHeaders.Add("User-Agent", "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.11 (KHTML, like Gecko) Chrome/23.0.1271.95 Safari/537.11"); while (true) { var parameters = new Dictionary <string, string> { { "type", "2" } }; var encodedContent = new FormUrlEncodedContent(parameters); var result = await client.PostAsync("http://z98950oc.beget.tech/ETApi/TransportInfo.php", encodedContent); String Response = await result.Content.ReadAsStringAsync(); Console.WriteLine(Response); Bus[] BussCollection = JsonConvert.DeserializeObject <Bus[]>(Response); if (BusDataAnno.Count > 0) { foreach (BusAnnotation busAnno in BusDataAnno) { mapView.RemoveAnnotation(busAnno.point); } BusDataAnno.Clear(); } var Bus = new BusAnnotation(); for (int i = 0; i < BussCollection.Length; i++) { //выводим данные по транспорту Console.WriteLine(BussCollection[i].id_bus); var separator = CultureInfo.CurrentCulture.NumberFormat.NumberDecimalSeparator; double latitude = Double.Parse(Regex.Replace(BussCollection[i].lati, "[.,]", separator)); double longitude = Double.Parse(Regex.Replace(BussCollection[i].longi, "[.,]", separator)); if (latitude != 0 && longitude != 0) { var CoordinateB = new CLLocationCoordinate2D(latitude, longitude); MKPointAnnotation SavePoint = new MKPointAnnotation() { Title = BussCollection[i].numberBus, Coordinate = new CLLocationCoordinate2D(latitude, longitude) }; MapShow.AddAnnotations(SavePoint); Bus.Title = BussCollection[i].numberBus; Bus.point = SavePoint; BusDataAnno.Add(Bus); } } await Task.Delay(10000); } }