How to use UpdateBackButton method of AppUIBasics.Common.NavigationHelper class

Best WinAppDriver code snippet using AppUIBasics.Common.NavigationHelper.UpdateBackButton

NavigationHelper.cs

Source:NavigationHelper.cs

...170            this.Frame = rootFrame;171            this.Frame.Navigated += (s, e) =>172            {173                // Update the Back button whenever a navigation occurs.174                UpdateBackButton();175            };176            this.CurrentNavView = currentNavView;177            // Handle keyboard and mouse navigation requests178            this.systemNavigationManager = SystemNavigationManager.GetForCurrentView();179            systemNavigationManager.BackRequested += SystemNavigationManager_BackRequested;180            // must register back requested on navview181            if (ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 6))182            {183                CurrentNavView.BackRequested += NavView_BackRequested;184            }185            // Listen to the window directly so we will respond to hotkeys regardless186            // of which element has focus.187            Window.Current.CoreWindow.Dispatcher.AcceleratorKeyActivated +=188                CoreDispatcher_AcceleratorKeyActivated;189            Window.Current.CoreWindow.PointerPressed +=190                this.CoreWindow_PointerPressed;191        }192        private void NavView_BackRequested(Microsoft.UI.Xaml.Controls.NavigationView sender, Microsoft.UI.Xaml.Controls.NavigationViewBackRequestedEventArgs args)193        {194            TryGoBack();195        }196        private bool TryGoBack()197        {198            // don't go back if the nav pane is overlayed199            if (this.CurrentNavView.IsPaneOpen && (this.CurrentNavView.DisplayMode == Microsoft.UI.Xaml.Controls.NavigationViewDisplayMode.Compact || this.CurrentNavView.DisplayMode == Microsoft.UI.Xaml.Controls.NavigationViewDisplayMode.Minimal))200            {201                return false;202            }203            bool navigated = false;204            if (this.Frame.CanGoBack)205            {206                this.Frame.GoBack();207                navigated = true;208            }209            210            return navigated;211        }212        private bool TryGoForward()213        {214            bool navigated = false;215            if (this.Frame.CanGoForward)216            {217                this.Frame.GoForward();218                navigated = true;219            }220            return navigated;221        }222        private void SystemNavigationManager_BackRequested(object sender, BackRequestedEventArgs e)223        {224            if (!e.Handled)225            {226                e.Handled = TryGoBack();227            }228        }229        private void UpdateBackButton()230        {231            if (ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 6))232            {233                this.CurrentNavView.IsBackEnabled = this.Frame.CanGoBack ? true : false;234            } else235            {236                systemNavigationManager.AppViewBackButtonVisibility = this.Frame.CanGoBack ? AppViewBackButtonVisibility.Visible : AppViewBackButtonVisibility.Collapsed;237            }238            239        }240        /// <summary>241        /// Invoked on every keystroke, including system keys such as Alt key combinations.242        /// Used to detect keyboard navigation between pages even when the page itself243        /// doesn't have focus....

UpdateBackButton

Using AI Code Generation

1protected override void OnNavigatedTo(NavigationEventArgs e)2{3    NavigationHelper.UpdateBackButton();4}5protected override void OnNavigatedFrom(NavigationEventArgs e)6{7    NavigationHelper.UpdateBackButton();8}9protected override void OnNavigatedTo(NavigationEventArgs e)10{11    NavigationHelper.UpdateBackButton();12}13protected override void OnNavigatedFrom(NavigationEventArgs e)14{15    NavigationHelper.UpdateBackButton();16}17protected override void OnNavigatedTo(NavigationEventArgs e)18{19    NavigationHelper.UpdateBackButton();20}21protected override void OnNavigatedFrom(NavigationEventArgs e)22{23    NavigationHelper.UpdateBackButton();24}25protected override void OnNavigatedTo(NavigationEventArgs e)26{27    NavigationHelper.UpdateBackButton();28}29protected override void OnNavigatedFrom(NavigationEventArgs e)30{31    NavigationHelper.UpdateBackButton();32}33protected override void OnNavigatedTo(NavigationEventArgs e)34{35    NavigationHelper.UpdateBackButton();36}37protected override void OnNavigatedFrom(NavigationEventArgs e)38{39    NavigationHelper.UpdateBackButton();40}41protected override void OnNavigatedTo(NavigationEventArgs e)42{43    NavigationHelper.UpdateBackButton();44}

UpdateBackButton

Using AI Code Generation

1private void UpdateBackButton()2{3    if (Frame != null)4    {5        if (Frame.CanGoBack)6        {7            SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Visible;8        }9        {10            SystemNavigationManager.GetForCurrentView().AppViewBackButtonVisibility = AppViewBackButtonVisibility.Collapsed;11        }12    }13}14private void GoBack(object sender, RoutedEventArgs e)15{16    if (Frame != null && Frame.CanGoBack)17    {18        Frame.GoBack();19    }20}21protected override void OnNavigatedTo(NavigationEventArgs e)22{23    navigationHelper.OnNavigatedTo(e);24}25protected override void OnNavigatedFrom(NavigationEventArgs e)26{27    navigationHelper.OnNavigatedFrom(e);28}29protected override void OnNavigatedFrom(NavigationEventArgs e)30{31    navigationHelper.OnNavigatedFrom(e);32}33protected override void OnNavigatedTo(NavigationEventArgs e)34{35    navigationHelper.OnNavigatedTo(e);36}37protected override void OnNavigatedTo(NavigationEventArgs e)38{39    navigationHelper.OnNavigatedTo(e);40}41protected override void OnNavigatedFrom(NavigationEventArgs e)42{43    navigationHelper.OnNavigatedFrom(e);44}45protected override void OnNavigatedTo(NavigationEventArgs e)46{47    navigationHelper.OnNavigatedTo(e);48}49protected override void OnNavigatedFrom(NavigationEventArgs e)50{

UpdateBackButton

Using AI Code Generation

1using System;2using Windows.UI.Xaml;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5using AppUIBasics.Common;6{7    {8        public Scenario4()9        {10            this.InitializeComponent();11        }12        protected override void OnNavigatedTo(NavigationEventArgs e)13        {14            NavigationHelper.UpdateBackButton();15        }16    }17}18using System;19using Windows.UI.Xaml;20using Windows.UI.Xaml.Controls;21using Windows.UI.Xaml.Navigation;22using AppUIBasics.Common;23{24    {25        public Scenario5()26        {27            this.InitializeComponent();28        }29        protected override void OnNavigatedTo(NavigationEventArgs e)30        {31            NavigationHelper.UpdateBackButton();32        }33    }34}35using System;36using Windows.UI.Xaml;37using Windows.UI.Xaml.Controls;38using Windows.UI.Xaml.Navigation;39using AppUIBasics.Common;40{41    {42        public Scenario6()43        {44            this.InitializeComponent();45        }46        protected override void OnNavigatedTo(NavigationEventArgs e)47        {48            NavigationHelper.UpdateBackButton();49        }50    }51}52using System;53using Windows.UI.Xaml;54using Windows.UI.Xaml.Controls;55using Windows.UI.Xaml.Navigation;56using AppUIBasics.Common;57{58    {59        public Scenario7()60        {61            this.InitializeComponent();62        }63        protected override void OnNavigatedTo(NavigationEventArgs e)64        {65            NavigationHelper.UpdateBackButton();66        }67    }68}

UpdateBackButton

Using AI Code Generation

1private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)2{3    if (e.PageState != null)4    {5        if (e.PageState.ContainsKey("NavigationHelper"))6        {7            NavigationHelper.LoadState(e.PageState["NavigationHelper"]);8        }9    }10}11private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)12{13    e.PageState["NavigationHelper"] = NavigationHelper.SaveState();14}15private void GoBack(object sender, RoutedEventArgs e)16{17    NavigationHelper.GoBack();18}19private void GoForward(object sender, RoutedEventArgs e)20{21    NavigationHelper.GoForward();22}23private void CanGoBack(object sender, CanExecuteRoutedEventArgs e)24{25    e.CanExecute = NavigationHelper.CanGoBack();26}27private void CanGoForward(object sender, CanExecuteRoutedEventArgs e)28{29    e.CanExecute = NavigationHelper.CanGoForward();30}31protected override void OnNavigatedTo(NavigationEventArgs e)32{33    NavigationHelper.OnNavigatedTo(e);34}35protected override void OnNavigatedFrom(NavigationEventArgs e)36{37    NavigationHelper.OnNavigatedFrom(e);38}39private void OnBackRequested(object sender, BackRequestedEventArgs e)40{41    NavigationHelper.OnBackRequested(e);42}43private void OnForwardRequested(object sender, ForwardRequestedEventArgs e)44{45    NavigationHelper.OnForwardRequested(e);46}

UpdateBackButton

Using AI Code Generation

1protected override void OnNavigatedTo(NavigationEventArgs e)2{3    base.OnNavigatedTo(e);4    NavigationHelper.OnNavigatedTo(e);5}6protected override void OnNavigatedFrom(NavigationEventArgs e)7{8    base.OnNavigatedFrom(e);9    NavigationHelper.OnNavigatedFrom(e);10}11protected override void OnNavigatedFrom(NavigationEventArgs e)12{13    base.OnNavigatedFrom(e);14    NavigationHelper.OnNavigatedFrom(e);15}16protected override void OnNavigatedFrom(NavigationEventArgs e)17{18    base.OnNavigatedFrom(e);19    NavigationHelper.OnNavigatedFrom(e);20}21protected override void OnNavigatedFrom(NavigationEventArgs e)22{23    base.OnNavigatedFrom(e);24    NavigationHelper.OnNavigatedFrom(e);25}26protected override void OnNavigatedFrom(NavigationEventArgs e)27{28    base.OnNavigatedFrom(e);29    NavigationHelper.OnNavigatedFrom(e);30}31protected override void OnNavigatedFrom(NavigationEventArgs e)32{33    base.OnNavigatedFrom(e);34    NavigationHelper.OnNavigatedFrom(e);35}36protected override void OnNavigatedFrom(NavigationEventArgs e)37{38    base.OnNavigatedFrom(e);

UpdateBackButton

Using AI Code Generation

1private void Page_Loaded(object sender, RoutedEventArgs e)2{3    AppUIBasics.Common.NavigationHelper.UpdateBackButton();4}5private void Page_Unloaded(object sender, RoutedEventArgs e)6{7    AppUIBasics.Common.NavigationHelper.UpdateBackButton();8}

UpdateBackButton

Using AI Code Generation

1protected override void OnNavigatedTo(NavigationEventArgs e)2{3    NavigationHelper.UpdateBackButton();4}5protected override void OnNavigatedFrom(NavigationEventArgs e)6{7    NavigationHelper.UpdateBackButton();8}9protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)10{11    NavigationHelper.UpdateBackButton();12}13protected override void OnNavigatedTo(NavigationEventArgs e)14{15    NavigationHelper.UpdateBackButton();16}17protected override void OnNavigatedFrom(NavigationEventArgs e)18{19    NavigationHelper.UpdateBackButton();20}21protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)22{23    NavigationHelper.UpdateBackButton();24}25protected override void OnNavigatedTo(NavigationEventArgs e)26{27    NavigationHelper.UpdateBackButton();28}29protected override void OnNavigatedFrom(NavigationEventArgs e)30{31    NavigationHelper.UpdateBackButton();32}33protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)34{35    NavigationHelper.UpdateBackButton();36}37protected override void OnNavigatedTo(NavigationEventArgs e)38{39    NavigationHelper.UpdateBackButton();40}41protected override void OnNavigatedFrom(NavigationEventArgs e)42{43    NavigationHelper.UpdateBackButton();44}

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