protected override void OnNavigatedTo(NavigationEventArgs e)
{
if (true.Equals(e.Parameter))
{
PersistenceHelper.Clear <LoginViewModel>();
return;
}
LoginViewModel vm = PersistenceHelper.Deserialize <LoginViewModel>();
if (vm != null && vm.IsValid)
{
Frame.Navigate(typeof(MainPage));
}
}
private async void OrderButton_OnClick(object sender, RoutedEventArgs e)
{
ViewModel.CanOrder = false;
using (HttpRequestMessage request = new HttpRequestMessage(HttpMethod.Post, "/coffeefreedom"))
{
LoginViewModel cred = PersistenceHelper.Deserialize <LoginViewModel>();
request.SetAuth(cred.UserName, cred.Password);
string body = JsonConvert.SerializeObject(ViewModel.ToModel());
request.Content = new StringContent(body, Encoding.UTF8, "application/json");
using (HttpResponseMessage response = await ApiHelper.Client.SendAsync(request))
{
ViewModel.CanOrder = true;
string message = response.IsSuccessStatusCode ? "Order placed" : await response.Content.ReadAsStringAsync();
string title = response.IsSuccessStatusCode ? "Success" : "Error";
await new MessageDialog(message, title).ShowAsync();
}
}
}
public MainPage()
{
InitializeComponent();
ViewModel = PersistenceHelper.Deserialize <MainViewModel>() ?? new MainViewModel();
ViewModel.PropertyChanged += ViewModel_OnPropertyChanged;
}