internal static UserDataContext Load(IStorageModel storage)
{
UserDataContext result = null;
try { result = storage.LoadFromStorageAsync<UserDataContext>(ConnectionString).Result; }
catch (Exception ex)
{
var settings = SettingsModelFactory.GetSettingsModel();
settings.AddOrUpdate("currentUser", string.Empty);
settings.SaveSettings();
result = new UserDataContext();
}
result.UserFavorites.CollectionChanged += UserFavorites_CollectionChanged;
return result;
}
/// <summary>
/// Constructor for the Application object.
/// </summary>
public App()
{
// Global handler for uncaught exceptions.
UnhandledException += Application_UnhandledException;
// Standard XAML initialization
InitializeComponent();
// Phone-specific initialization
InitializePhoneApplication();
// Language display initialization
InitializeLanguage();
// Show graphics profiling information while debugging.
if (Debugger.IsAttached)
{
// Display the current frame rate counters.
Application.Current.Host.Settings.EnableFrameRateCounter = true;
// Show the areas of the app that are being redrawn in each frame.
//Application.Current.Host.Settings.EnableRedrawRegions = true;
// Enable non-production analysis visualization mode,
// which shows areas of a page that are handed off to GPU with a colored overlay.
//Application.Current.Host.Settings.EnableCacheVisualization = true;
// Prevent the screen from turning off while under the debugger by disabling
// the application's idle detection.
// Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
// and consume battery power when the user is not using the phone.
PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;
}
// Intialize main data model.
Main = new MainDataModel();
// Initialize database
UserContext = new UserDataContext(userDBConnectionString);
UserContext.CreateIfNotExists();
// Register for Device Network status changes
DeviceNetworkInformation.NetworkAvailabilityChanged += DeviceNetworkInformation_NetworkAvailabilityChanged;
// Register for notifications
NotificationService.Default.Register<AccessTokenMessage>(OnAccessTokenMessage);
NotificationService.Default.Register<NetworkDetectionMessage>(OnNetworkDetectionMessage);
NotificationService.Default.Register<ToastMessage>(OnToastMessage);
NotificationService.Default.Register<DialogMessage>(OnDialogMessage);
NotificationService.Default.Register<ConfirmDialogMessage>(OnConfirmDialogMessage);
NotificationService.Default.Register<PinnedForumQuery>(OnPinnedForumQuery);
}
/// <summary>
/// Creates a new SignInDataModel instance.
/// </summary>
/// <param name="success">callback on sign in success.</param>
/// <param name="fail">callback on sign in failure.</param>
public SignInDataModel(
UserDataContext context,
SignInSuccessDelegate success,
FailureDelegate fail)
{
if (success == null || fail == null)
throw new ArgumentNullException("success | fail");
this.userContext = context;
this.onSuccess = success;
this.onFail = fail;
this.signInCommand = new RelayCommand(async () => { await SignInAsync(); }, CanSignIn);
}
