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How to use SaveStateEventArgs class of AppUIBasics.Common package

Best WinAppDriver code snippet using AppUIBasics.Common.SaveStateEventArgs

NavigationHelper.cs

Source:NavigationHelper.cs

...131        public void OnNavigatedFrom(NavigationEventArgs e)132        {133            var frameState = SuspensionManager.SessionStateForFrame(this.Frame);134            var pageState = new Dictionary<string, object>();135            this.SaveState?.Invoke(this, new SaveStateEventArgs(pageState));136            frameState[_pageKey] = pageState;137        }138        #endregion139    }140    /// <summary>141    /// RootFrameNavigationHelper registers for standard mouse and keyboard142    /// shortcuts used to go back and forward. There should be only one143    /// RootFrameNavigationHelper per view, and it should be associated with the144    /// root frame.145    /// </summary>146    /// <example>147    /// To make use of RootFrameNavigationHelper, create an instance of the148    /// RootNavigationHelper such as in the constructor of your root page.149    /// <code>150    ///     public MyRootPage()151    ///     {152    ///         this.InitializeComponent();153    ///         this.rootNavigationHelper = new RootNavigationHelper(MyFrame);154    ///     }155    /// </code>156    /// </example>157    [Windows.Foundation.Metadata.WebHostHidden]158    public class RootFrameNavigationHelper159    {160        private Frame Frame { get; set; }161        SystemNavigationManager systemNavigationManager;162        private Microsoft.UI.Xaml.Controls.NavigationView CurrentNavView { get; set; }163        /// <summary>164        /// Initializes a new instance of the <see cref="RootNavigationHelper"/> class.165        /// </summary>166        /// <param name="rootFrame">A reference to the top-level frame.167        /// This reference allows for frame manipulation and to register navigation handlers.</param>168        public RootFrameNavigationHelper(Frame rootFrame, Microsoft.UI.Xaml.Controls.NavigationView currentNavView)169        {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.244        /// </summary>245        /// <param name="sender">Instance that triggered the event.</param>246        /// <param name="e">Event data describing the conditions that led to the event.</param>247        private void CoreDispatcher_AcceleratorKeyActivated(CoreDispatcher sender,248            AcceleratorKeyEventArgs e)249        {250            var virtualKey = e.VirtualKey;251            // Only investigate further when Left, Right, or the dedicated Previous or Next keys252            // are pressed253            if ((e.EventType == CoreAcceleratorKeyEventType.SystemKeyDown ||254                e.EventType == CoreAcceleratorKeyEventType.KeyDown) &&255                (virtualKey == VirtualKey.Left || virtualKey == VirtualKey.Right ||256                (int)virtualKey == 166 || (int)virtualKey == 167))257            {258                var coreWindow = Window.Current.CoreWindow;259                var downState = CoreVirtualKeyStates.Down;260                bool menuKey = (coreWindow.GetKeyState(VirtualKey.Menu) & downState) == downState;261                bool controlKey = (coreWindow.GetKeyState(VirtualKey.Control) & downState) == downState;262                bool shiftKey = (coreWindow.GetKeyState(VirtualKey.Shift) & downState) == downState;263                bool noModifiers = !menuKey && !controlKey && !shiftKey;264                bool onlyAlt = menuKey && !controlKey && !shiftKey;265                if (((int)virtualKey == 166 && noModifiers) ||266                    (virtualKey == VirtualKey.Left && onlyAlt))267                {268                    // When the previous key or Alt+Left are pressed navigate back269                    e.Handled = TryGoBack();270                }271                else if (((int)virtualKey == 167 && noModifiers) ||272                    (virtualKey == VirtualKey.Right && onlyAlt))273                {274                    // When the next key or Alt+Right are pressed navigate forward275                    e.Handled = TryGoForward();276                }277            }278        }279        /// <summary>280        /// Invoked on every mouse click, touch screen tap, or equivalent interaction.281        /// Used to detect browser-style next and previous mouse button clicks282        /// to navigate between pages.283        /// </summary>284        /// <param name="sender">Instance that triggered the event.</param>285        /// <param name="e">Event data describing the conditions that led to the event.</param>286        private void CoreWindow_PointerPressed(CoreWindow sender,287            PointerEventArgs e)288        {289            var properties = e.CurrentPoint.Properties;290            // Ignore button chords with the left, right, and middle buttons291            if (properties.IsLeftButtonPressed || properties.IsRightButtonPressed ||292                properties.IsMiddleButtonPressed)293                return;294            // If back or forward are pressed (but not both) navigate appropriately295            bool backPressed = properties.IsXButton1Pressed;296            bool forwardPressed = properties.IsXButton2Pressed;297            if (backPressed ^ forwardPressed)298            {299                e.Handled = true;300                if (backPressed) this.TryGoBack();301                if (forwardPressed) this.TryGoForward();302            }303        }304    }305    /// <summary>306    /// Represents the method that will handle the <see cref="NavigationHelper.LoadState"/>event307    /// </summary>308    public delegate void LoadStateEventHandler(object sender, LoadStateEventArgs e);309    /// <summary>310    /// Represents the method that will handle the <see cref="NavigationHelper.SaveState"/>event311    /// </summary>312    public delegate void SaveStateEventHandler(object sender, SaveStateEventArgs e);313    /// <summary>314    /// Class used to hold the event data required when a page attempts to load state.315    /// </summary>316    public class LoadStateEventArgs : EventArgs317    {318        /// <summary>319        /// The parameter value passed to <see cref="Frame.Navigate(Type, object)"/>320        /// when this page was initially requested.321        /// </summary>322        public object NavigationParameter { get; private set; }323        /// <summary>324        /// A dictionary of state preserved by this page during an earlier325        /// session.  This will be null the first time a page is visited.326        /// </summary>327        public Dictionary<string, object> PageState { get; private set; }328        /// <summary>329        /// Initializes a new instance of the <see cref="LoadStateEventArgs"/> class.330        /// </summary>331        /// <param name="navigationParameter">332        /// The parameter value passed to <see cref="Frame.Navigate(Type, object)"/>333        /// when this page was initially requested.334        /// </param>335        /// <param name="pageState">336        /// A dictionary of state preserved by this page during an earlier337        /// session.  This will be null the first time a page is visited.338        /// </param>339        public LoadStateEventArgs(object navigationParameter, Dictionary<string, object> pageState)340            : base()341        {342            this.NavigationParameter = navigationParameter;343            this.PageState = pageState;344        }345    }346    /// <summary>347    /// Class used to hold the event data required when a page attempts to save state.348    /// </summary>349    public class SaveStateEventArgs : EventArgs350    {351        /// <summary>352        /// An empty dictionary to be populated with serializable state.353        /// </summary>354        public Dictionary<string, object> PageState { get; private set; }355        /// <summary>356        /// Initializes a new instance of the <see cref="SaveStateEventArgs"/> class.357        /// </summary>358        /// <param name="pageState">An empty dictionary to be populated with serializable state.</param>359        public SaveStateEventArgs(Dictionary<string, object> pageState)360            : base()361        {362            this.PageState = pageState;363        }364    }365}...

SaveStateEventArgs

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.InteropServices.WindowsRuntime;6using Windows.ApplicationModel;7using Windows.ApplicationModel.Activation;8using Windows.ApplicationModel.Core;9using Windows.Foundation;10using Windows.Foundation.Collections;11using Windows.UI.Core;12using Windows.UI.ViewManagement;13using Windows.UI.Xaml;14using Windows.UI.Xaml.Controls;15using Windows.UI.Xaml.Controls.Primitives;16using Windows.UI.Xaml.Data;17using Windows.UI.Xaml.Input;18using Windows.UI.Xaml.Media;19using Windows.UI.Xaml.Navigation;20{21    {22        public App()23        {24            this.InitializeComponent();25            this.Suspending += OnSuspending;26        }27        protected override void OnLaunched(LaunchActivatedEventArgs e)28        {29            Frame rootFrame = Window.Current.Content as Frame;30            if (rootFrame == null)31            {32                rootFrame = new Frame();33                SuspensionManager.RegisterFrame(rootFrame, "AppFrame");

SaveStateEventArgs

Using AI Code Generation

1using Common;2using System;3using System.Collections.Generic;4using System.IO;5using System.Linq;6using System.Runtime.InteropServices.WindowsRuntime;7using Windows.ApplicationModel;8using Windows.ApplicationModel.Activation;9using Windows.Foundation;10using Windows.Foundation.Collections;11using Windows.UI.Xaml;12using Windows.UI.Xaml.Controls;13using Windows.UI.Xaml.Controls.Primitive;14using Windows.UI.Xaml.Data;15using Windows.UI.Xaml.Input;16using Windows.UI.Xaml.Media;17using Windows.UI.Xaml.Navigation;18{19    {20        public App()21        {22            this.InitializeComponent();23            this.Suspending += OnSuspending;24        }25        protected override void OnLaunched(LaunchActivatedEventArgs e)26        {27            if (System.Diagnostics.Debugger.IsAttached)28            {29                this.DebugSettings.EnableFrameRateCounter = true;30            }31            Frame rootFrame = Window.Current.Content as Frame;32            if (rootFrame == null)33            {34                rootFrame = new Frame();35                SuspensionManager.RegisterFrame(rootFrame, "AppFrame");36                rootFrame.Language = Windows.Globalization.ApplicationLanguages.Languages[0];37                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)38                {39                    {40                        SuspensionManager.RestoreAsync().GetResults();41                    }42                    catch (SuspensionManagerException)43                    {

SaveStateEventArgs

Using AI Code Generation

1using AppUIBasics.Common;2using Windows.UI.Xaml;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        public SaveStatePage()8        {9            this.InitializeComponent();10        }11        protected override void OnNavigatedTo(NavigationEventArgs e)12        {13            if (e.Parameter is SaveStateEventArgs)14            {15                var saveStateEventArgs = e.Parameter as SaveStateEventArgs;16                if (saveStateEventArgs.PageState != null)17                {18                    if (saveStateEventArgs.PageState.ContainsKey("TextBoxContent"))19                    {20                        TextBoxContent.Text = saveStateEventArgs.PageState["TextBoxContent"].ToString();21                    }22                }23            }24        }25        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)26        {27            var saveStateEventArgs = new SaveStateEventArgs();28            saveStateEventArgs.PageState["TextBoxContent"] = TextBoxContent.Text;29            e.Parameter = saveStateEventArgs;30        }31    }32}33using Windows.UI.Xaml.Controls;34using Windows.UI.Xaml.Navigation;35{36    {37        public WebViewPage()38        {39            this.InitializeComponent();40        }41        protected override void OnNavigatedTo(NavigationEventArgs e)42        {43            if (e.Parameter != null)44            {45                WebViewContent.Navigate(new System.Uri(e.Parameter.ToString()));46            }47        }48    }49}50using System;51using System.Collections.Generic;52using System.IO;53using System.Linq;54using System.Runtime.InteropServices.WindowsRuntime;55using Windows.Foundation;56using Windows.Foundation.Collections;57using Windows.Storage;58using Windows.Storage.Pickers;59using Windows.Storage.Streams;60using Windows.UI.Popups;61using Windows.UI.Xaml;62using Windows.UI.Xaml.Controls;63using Windows.UI.Xaml.Controls.Primitives;64using Windows.UI.Xaml.Data;65using Windows.UI.Xaml.Input;66using Windows.UI.Xaml.Media;67using Windows.UI.Xaml.Navigation;68{69    {70        public WebViewPage()71        {72            this.InitializeComponent();73        }74        protected override void OnNavigatedTo(NavigationEventArgs e)75        {76            if (e

SaveStateEventArgs

Using AI Code Generation

1using AppUIBasics.Common;2using Windows.UI.Xaml;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        public SaveStatePage()8        {9            this.InitializeComponent();10        }11        protected override void OnNavigatedTo(NavigationEventArgs e)12        {13            if (e.Parameter != null)14            {15                var state = (SaveStateEventArgs)e.Parameter;16                if (state.PageState != null)17                {18                    if (state.PageState.ContainsKey("TextBoxValue"))19                    {20                        TextBox.Text = (string)state.PageState["TextBoxValue"];21                    }22                }23            }24        }25        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)26        {27            var state = new SaveStateEventArgs();28            state.PageState = new Windows.Storage.ApplicationDataCompositeValue();29            state.PageState["TextBoxValue"] = TextBox.Text;30            e.Parameter = state;31        }32    }33}34using AppUIBasics.Common;35using Windows.UI.Xaml;36using Windows.UI.Xaml.Controls;37using Windows.UI.Xaml.Navigation;38{39    {40        public SaveStatePage()41        {42            this.InitializeComponent();43        }44        protected override void OnNavigatedTo(NavigationEventArgs e)45        {46            if (e.Parameter != null)47            {48                var state = (SaveStateEventArgs)e.Parameter;49                if (state.PageState != null)50                {51                    if (state.PageState.ContainsKey("TextBoxValue"))52                    {53                        TextBox.Text = (string)state.PageState["TextBoxValue"];54                    }55                }56            }57        }58        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)59        {60            var state = new SaveStateEventArgs();61            state.PageState = new Windows.Storage.ApplicationDataCompositeValue();62            state.PageState["TextBoxValue"] = TextBox.Text;63            e.Parameter = state;64        }65    }66}67using AppUIBasics.Common;68using Windows.UI.Xaml;69using Windows.UI.Xaml.Controls;

SaveStateEventArgs

Using AI Code Generation

1using AppUIBasics.Common;2using Windows.UI.Xaml;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        public SaveStatePage()8        {9            this.InitializeComponent();10        }11        protected override void OnNavigatedTo(NavigationEventArgs e)12        {13            var state = e.Parameter as SaveStateEventArgs;14            if (state != null)15            {16                if (state.State.ContainsKey("text"))17                {18                    text.Text = state.State["text"] as string;19                }20            }21        }22        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)23        {24            var state = new SaveStateEventArgs();25            state.State["text"] = text.Text;26            e.Parameter = state;27        }28        private void SaveState_Click(object sender, RoutedEventArgs e)29        {30            Frame.Navigate(typeof(SaveStatePage), new SaveStateEventArgs());31        }32    }33}34using AppUIBasics.Common;35using Windows.UI.Xaml;36using Windows.UI.Xaml.Controls;37using Windows.UI.Xaml.Navigation;38{39    {40        public SaveStatePage()41        {42            this.InitializeComponent();43        }44        protected override void OnNavigatedTo(NavigationEventArgs e)45        {46            var state = e.Parameter as SaveStateEventArgs;47            if (state != null)48            {49                if (state.State.ContainsKey("text"))50                {51                    text.Text = state.State["text"] as string;52                }53            }54        }55        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)56        {57            var state = new SaveStateEventArgs();58            state.State["text"] = text.Text;59            e.Parameter = state;60        }61        private void SaveState_Click(object sender, RoutedEventArgs e)62        {63            Frame.Navigate(typeof(SaveStatePage), new SaveStateEventArgs());64        }65    }66}67using AppUIBasics.Common;68using Windows.UI.Xaml;69using Windows.UI.Xaml.Controls;70using Windows.UI.Xaml.Navigation;

SaveStateEventArgs

Using AI Code Generation

1using AppUIBasics.Common;2using AppUIBasics.Data;3using AppUIBasics.ViewModels;4using Windows.UI.Xaml;5using Windows.UI.Xaml.Controls;6using Windows.UI.Xaml.Navigation;7{8    {9        private NavigationHelper navigationHelper;10        private ObservableDictionary defaultViewModel = new ObservableDictionary();11        public Scenario4()12        {13            this.InitializeComponent();14            navigationHelper = new NavigationHelper(this);15            navigationHelper.LoadState += navigationHelper_LoadState;16            navigationHelper.SaveState += navigationHelper_SaveState;17        }18        {19            get { return this.navigationHelper; }20        }21        {22            get { return this.defaultViewModel; }23        }24        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)25        {

SaveStateEventArgs

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.InteropServices.WindowsRuntime;6using Windows.Foundation;7using Windows.Foundation.Collections;8using Windows.UI.Xaml;9using Windows.UI.Xaml.Controls;10using Windows.UI.Xaml.Controls.Primitives;11using Windows.UI.Xaml.Data;12using Windows.UI.Xaml.Input;13using Windows.UI.Xaml.Media;14using Windows.UI.Xaml.Navigation;15using AppUIBasics.Common;16{17    {18        private NavigationHelper navigationHelper;19        private ObservableDictionary defaultViewModel = new ObservableDictionary();20        public SaveState()21        {22            this.InitializeComponent();23            this.navigationHelper = new NavigationHelper(this);24            this.navigationHelper.LoadState += this.NavigationHelper_LoadState;25            this.navigationHelper.SaveState += this.NavigationHelper_SaveState;26        }27        {28            get { return this.navigationHelper; }29        }30        {31            get { return this.defaultViewModel; }32        }

SaveStateEventArgs

Using AI Code Generation

1using AppUIBasics.Common;2using Windows.UI.Xaml;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        public SaveStatePage()8        {9            this.InitializeComponent();10        }11        protected override void OnNavigatedTo(NavigationEventArgs e)12        {13            var args = e.Parameter as SaveStateEventArgs;14            if (args != null)15            {16                if (args.PageState != null)17                {18                    if (args.PageState.ContainsKey("Text"))19                    {20                        textBlock.Text = args.PageState["Text"] as string;21                    }22                }23            }24        }25        protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)26        {27            var args = e.Parameter as SaveStateEventArgs;28            if (args != null)29            {30                args.PageState["Text"] = textBlock.Text;31            }32        }33        private void Button_Click(object sender, RoutedEventArgs e)34        {35            textBlock.Text = "Hello World";36        }37    }38}39protected override void OnNavigatedTo(NavigationEventArgs e)40        {41            var args = e.Parameter as SaveStateEventArgs;42            if (args != null)43            {44                if (args.PageState != null)45                {46                    if (args.PageState.ContainsKey("Text"))47                    {48                        textBlock.Text = args.PageState["Text"] as string;49                    }50                }51            }52        }53protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)54        {55            var args = e.Parameter as SaveStateEventArgs;56            if (args != null)57            {58                args.PageState["Text"] = textBlock.Text;59            }60        }

SaveStateEventArgs

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.InteropServices.WindowsRuntime;6using Windows.ApplicationModel;7using Windows.ApplicationModel.Activation;8using Windows.Foundation;9using Windows.Foundation.Collections;10using Windows.UI.Xaml;11using Windows.UI.Xaml.Controls;12using Windows.UI.Xaml.Controls.Primitive;13using Windows.UI.Xaml.Data;14using Windows.UI.Xaml.Input;15using Windows.UI.Xaml.Media;16using Windows.UI.Xaml.Navigation;17{18    {19        public App()20        {21            this.InitializeComponent();22            this.Suspending += OnSuspending;23        }24        protected override void OnLaunched(LaunchActivatedEventArgs args)25        {26            Frame rootFrame = Window.Current.Content as Frame;27            if (rootFrame == null)28            {29                rootFrame = new Frame();

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