Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

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

Best WinAppDriver code snippet using AppUIBasics.Common.NavigationHelper.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.DataTransfer;7using Windows.Foundation;8using Windows.Foundation.Collections;9using Windows.UI.Xaml;10using Windows.UI.Xaml.Controls;11using Windows.UI.Xaml.Controls.Primitive;12using Windows.UI.Xaml.Data;13using Windows.UI.Xaml.Input;14using Windows.UI.Xaml.Media;15using Windows.UI.Xaml.Navigation;16using AppUIBasics.Common;17using AppUIBasics.Data;18using AppUIBasics.ControlPages;19using AppUIBasics.SamplePages;20using AppUIBasics.ViewModels;21using System.Threading.Tasks;22using Windows.Storage;23using Windows.Storage.Pickers;24using Windows.UI.Popups;25using Windows.UI.Core;26using Windows.UI.Xaml.Media.Imaging;27using Windows.Storage.Streams;28using Windows.UI.Xaml.Media.Animation;29{30    {31        private NavigationHelper navigationHelper;32        private ObservableDictionary defaultViewModel = new ObservableDictionary();33        private DataTransferManager dataTransferManager = DataTransferManager.GetForCurrentView();34        private SampleDataGroup group;35        private SampleDataItem item;36        private bool isShared = false;37        public ItemPage()38        {39            this.InitializeComponent();40            this.navigationHelper = new NavigationHelper(this);41            this.navigationHelper.LoadState += navigationHelper_LoadState;42            this.navigationHelper.SaveState += navigationHelper_SaveState;43            this.dataTransferManager.DataRequested += DataRequested;44        }45        {46            get { return this.navigationHelper; }47        }48        {49            get { return this.defaultViewModel; }50        }51        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)52        {

SaveStateEventArgs

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        private NavigationHelper navigationHelper;9        public Scenario4()10        {11            this.InitializeComponent();12            navigationHelper = new NavigationHelper(this);13            navigationHelper.LoadState += navigationHelper_LoadState;14            navigationHelper.SaveState += navigationHelper_SaveState;15        }16        private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)17        {18            e.PageState["TextBoxValue"] = TextBox.Text;19        }20        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)21        {22            if (e.PageState != null && e.PageState.ContainsKey("TextBoxValue"))23            {24                TextBox.Text = e.PageState["TextBoxValue"].ToString();25            }26        }27        protected override void OnNavigatedTo(NavigationEventArgs e)28        {29            navigationHelper.OnNavigatedTo(e);30        }31        protected override void OnNavigatedFrom(NavigationEventArgs e)32        {33            navigationHelper.OnNavigatedFrom(e);34        }35    }36}37using System;38using Windows.UI.Xaml;39using Windows.UI.Xaml.Controls;40using Windows.UI.Xaml.Navigation;41using AppUIBasics.Common;42{43    {44        private NavigationHelper navigationHelper;45        public Scenario4()46        {47            this.InitializeComponent();48            navigationHelper = new NavigationHelper(this);49            navigationHelper.LoadState += navigationHelper_LoadState;50            navigationHelper.SaveState += navigationHelper_SaveState;51        }52        private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)53        {54            e.PageState["TextBoxValue"] = TextBox.Text;55        }56        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)57        {58            if (e.PageState != null && e.PageState.ContainsKey("TextBoxValue"))59            {

SaveStateEventArgs

Using AI Code Generation

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

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.DataTransfer;7using Windows.Foundation;8using Windows.Foundation.Collections;9using Windows.UI.Xaml;10using Windows.UI.Xaml.Controls;11using Windows.UI.Xaml.Controls.Primitives;12using Windows.UI.Xaml.Data;13using Windows.UI.Xaml.Input;14using Windows.UI.Xaml.Media;15using Windows.UI.Xaml.Navigation;16using AppUIBasics.Common;17using AppUIBasics.Data;18{19    {20        private NavigationHelper navigationHelper;21        private ObservableDictionary defaultViewModel = new ObservableDictionary();22        public Page4()23        {24            this.InitializeComponent();25            this.navigationHelper = new NavigationHelper(this);26            this.navigationHelper.LoadState += navigationHelper_LoadState;27            this.navigationHelper.SaveState += navigationHelper_SaveState;28        }29        {30            get { return this.navigationHelper; }31        }32        {33            get { return this.defaultViewModel; }34        }35        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)36        {

SaveStateEventArgs

Using AI Code Generation

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

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    base.OnNavigatedFrom(e);4    NavigationHelper.OnNavigatedFrom(e);5}6protected override void OnNavigatedTo(NavigationEventArgs e)7{8    base.OnNavigatedTo(e);9    NavigationHelper.OnNavigatedTo(e);10}11private void SaveState(object sender, SaveStateEventArgs e)12{

SaveStateEventArgs

Using AI Code Generation

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

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    base.OnNavigatedFrom(e);4    navigationHelper.OnNavigatedFrom(e);5}6protected override void OnNavigatedTo(NavigationEventArgs e)7{8    base.OnNavigatedTo(e);9    navigationHelper.OnNavigatedTo(e);10}11private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)12{13}14private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)15{16}17private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)18{19}20private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)21{22}23private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)24{25}26private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)27{28}29private void NavigationHelper_SaveState(object sender, SaveStateEventArgs e)30{31}32private void NavigationHelper_LoadState(object sender, LoadStateEventArgs e)33{34}

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    if (e.NavigationMode == NavigationMode.Back)4    {5        var frameState = SuspensionManager.SessionStateForFrame(Frame);6        var pageState = new Dictionary<string, object>();7        ((Common.NavigationHelper)NavigationHelper).SaveState(pageState);8        if (pageState.Any())9        {10            frameState[_pageKey] = pageState;11        }12    }13}14protected override void OnNavigatedTo(NavigationEventArgs e)15{16    NavigationHelper.OnNavigatedTo(e);17    if (e.NavigationMode != NavigationMode.Back)18    {19        var frameState = SuspensionManager.SessionStateForFrame(Frame);20        frameState.Remove(_pageKey);21    }22    {23        var frameState = SuspensionManager.SessionStateForFrame(Frame);24        if (frameState.ContainsKey(_pageKey))25        {26            var pageState = (Dictionary<string, object>)frameState[_pageKey];27            ((Common.NavigationHelper)NavigationHelper).LoadState(pageState);28        }29    }30}31protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)32{

SaveStateEventArgs

Using AI Code Generation

1using System;2using AppUIBasics.Common;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        private NavigationHelper navigationHelper;8        private ObservableDictionary defaultViewModel = new ObservableDictionary();9        public Scenario4()10        {11            this.InitializeComponent();12            this.navigationHelper = new NavigationHelper(this);13            this.navigationHelper.LoadState += navigationHelper_LoadState;14            this.navigationHelper.SaveState += navigationHelper_SaveState;15        }16        {17            get { return this.navigationHelper; }18        }19        {20            get { return this.defaultViewModel; }21        }22        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)23        {24protected override void OnNavigatedFrom(NavigationEventArgs e)25{26    base.OnNavigatedFrom(e);27    navigationHelper.OnNavigatedFrom(e);28}29protected override void OnNavigatedTo(NavigationEventArgs e)30{31    base.OnNavigatedTo(e);32    navigationHelper.OnNavigatedTo(e);33}34protected override void OnNavigatedFrom(NavigationEventArgs e)35{36    base.OnNavigatedFrom(e);37    navigationHelper.OnNavigatedFrom(e);38}39protected override void OnNavigatedTo(NavigationEventArgs e)40{41    base.OnNavigatedTo(e);42    navigationHelper.OnNavigatedTo(e);43}44protected override void OnNavigatedFrom(NavigationEventArgs e)45{46    base.OnNavigatedFrom(e);47    navigationHelper.OnNavigatedFrom(e);48}49protected override void OnNavigatedTo(NavigationEventArgs e)50{51    base.OnNavigatedTo(e);52    navigationHelper.OnNavigatedTo(e);53}

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    if (e.NavigationMode == NavigationMode.Back)4    {5        var frameState = SuspensionManager.SessionStateForFrame(Frame);6        var pageState = new Dictionary<string, object>();7        ((Common.NavigationHelper)NavigationHelper).SaveState(pageState);8        if (pageState.Any())9        {10            frameState[_pageKey] = pageState;11        }12    }13}14protected override void OnNavigatedTo(NavigationEventArgs e)15{16    NavigationHelper.OnNavigatedTo(e);17    if (e.NavigationMode != NavigationMode.Back)18    {19        var frameState = SuspensionManager.SessionStateForFrame(Frame);20        frameState.Remove(_pageKey);21    }22    {23        var frameState = SuspensionManager.SessionStateForFrame(Frame);24        if (frameState.ContainsKey(_pageKey))25        {26            var pageState = (Dictionary<string, object>)frameState[_pageKey];27            ((Common.NavigationHelper)NavigationHelper).LoadState(pageState);28        }29    }30}31protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)32{

SaveStateEventArgs

Using AI Code Generation

1using System;2using AppUIBasics.Common;3using Windows.UI.Xaml.Controls;4using Windows.UI.Xaml.Navigation;5{6    {7        private NavigationHelper navigationHelper;8        private ObservableDictionary defaultViewModel = new ObservableDictionary();9        public Scenario4()10        {11            this.InitializeComponent();12            this.navigationHelper = new NavigationHelper(this);13            this.navigationHelper.LoadState += navigationHelper_LoadState;14            this.navigationHelper.SaveState += navigationHelper_SaveState;15        }16        {17            get { return this.navigationHelper; }18        }19        {20            get { return this.defaultViewModel; }21        }22        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)23        {24        private ObservableDictionary defaultViewModel = new ObservableDictionary();25        public Page4()26        {27            this.InitializeComponent();28            this.navigationHelper = new NavigationHelper(this);29            this.navigationHelper.LoadState += navigationHelper_LoadState;30            this.navigationHelper.SaveState += navigationHelper_SaveState;31        }32        {33            get { return this.navigationHelper; }34        }35        {36            get { return this.defaultViewModel; }37        }38        private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)39        {

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    base.OnNavigatedFrom(e);4    NavigationHelper.OnNavigatedFrom(e);5}6protected override void OnNavigatedTo(NavigationEventArgs e)7{8    base.OnNavigatedTo(e);9    NavigationHelper.OnNavigatedTo(e);10}11private void SaveState(object sender, SaveStateEventArgs e)12{

SaveStateEventArgs

Using AI Code Generation

1protected override void OnNavigatedFrom(NavigationEventArgs e)2{3    if (e.NavigationMode == NavigationMode.Back)4    {5        var frameState = SuspensionManager.SessionStateForFrame(Frame);6        var pageState = new Dictionary<string, object>();7        ((Common.NavigationHelper)NavigationHelper).SaveState(pageState);8        if (pageState.Any())9        {10            frameState[_pageKey] = pageState;11        }12    }13}14protected override void OnNavigatedTo(NavigationEventArgs e)15{16    NavigationHelper.OnNavigatedTo(e);17    if (e.NavigationMode != NavigationMode.Back)18    {19        var frameState = SuspensionManager.SessionStateForFrame(Frame);20        frameState.Remove(_pageKey);21    }22    {23        var frameState = SuspensionManager.SessionStateForFrame(Frame);24        if (frameState.ContainsKey(_pageKey))25        {26            var pageState = (Dictionary<string, object>)frameState[_pageKey];27            ((Common.NavigationHelper)NavigationHelper).LoadState(pageState);28        }29    }30}31protected override void LoadState(Object navigationParameter, Dictionary<String, Object> pageState)32{

SaveStateEventArgs

Using AI Code Generation

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

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.