private async void Update(object sender, RoutedEventArgs e)
        {
            var p = new AirCraftType
            {
                Id           = AirCraftTypeData.Id,
                Model        = Model.Text,
                Places       = Convert.ToInt32(Seats.Text),
                LoadCapacity = Convert.ToInt32(LoadCapacity.Text),
            };

            using (var client = new HttpClient())
            {
                var myContent   = JsonConvert.SerializeObject(p);
                var buffer      = System.Text.Encoding.UTF8.GetBytes(myContent);
                var byteContent = new ByteArrayContent(buffer);
                byteContent.Headers.ContentType = new MediaTypeHeaderValue("application/json");


                string url = App.BaseUrl + "AirCraftTypes/" + AirCraftTypeData.Id;

                var result = client.PutAsync(new Uri(url), byteContent).ConfigureAwait(false).GetAwaiter().GetResult();

                if (!result.IsSuccessStatusCode)
                {
                    MessageDialog showDialog = new MessageDialog("Something wrong with posting data!!!");
                    await showDialog.ShowAsync();
                }
                else
                {
                    this.Frame.Navigate(typeof(AirCraftTypesPage));
                }
            }
        }
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            base.OnNavigatedTo(e);

            AirCraftTypeData = (AirCraftType)e.Parameter;

            // parameters.Name
            // parameters.Text
            // ...
        }