private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e) { try { bool signedIn = false; _userViewModel = new UserViewModel(); if (e.PageState != null && e.PageState.ContainsKey("signInStatus")) { signedIn = (bool)e.PageState["signInStatus"]; } this.DataContext = new UserViewModel(); if (signedIn) await _userViewModel.SignInCurrentUserAsync(); this.DataContext = _userViewModel; } catch (Exception) { } }
/// <summary> /// Populates the page with content passed during navigation. Any saved state is also /// provided when recreating a page from a prior session. /// </summary> /// <param name="sender"> /// The source of the event; typically <see cref="NavigationHelper"/> /// </param> /// <param name="e">Event data that provides both the navigation parameter passed to /// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and /// a dictionary of state preserved by this page during an earlier /// session. The state will be null the first time a page is visited.</param> private void navigationHelper_LoadState(object sender, LoadStateEventArgs e) { }
private void navigationHelper_LoadState(object sender, LoadStateEventArgs e) { this.DataContext = App.CurrentUser; }