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

Best WinAppDriver code snippet using AppUIBasics.Common.RootFrameNavigationHelper.SaveStateEventArgs

NavigationHelper.cs

Source:NavigationHelper.cs Github

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...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}...

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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 e)25 {26 if (System.Diagnostics.Debugger.IsAttached)27 {28 this.DebugSettings.EnableFrameRateCounter = true;29 }30 if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)31 {32 {33 ((AppUIBasics.Common.RootFrameNavigationHelper)Resources["navigationHelper"]).RestoreSavedNavigation();34 }35 catch (Exception)36 {37 }38 }39 Frame rootFrame = Window.Current.Content as Frame;40 if (rootFrame == null)41 {

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SaveStateEventArgs

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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.Primitives;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 e)25 {26 Frame rootFrame = Window.Current.Content as Frame;27 if (rootFrame == null)28 {29 rootFrame = new Frame();

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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 e)25 {26 Frame rootFrame = Window.Current.Content as Frame;27 if (rootFrame == null)28 {29 rootFrame = new Frame();30 SuspensionManager.RegisterFrame(rootFrame, "AppFrame");

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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 private TransitionCollection transitions;20 public App()21 {22 this.InitializeComponent();23 this.Suspending += OnSuspending;24 }25 protected override void OnLaunched(LaunchActivatedEventArgs e)26 {27 Frame rootFrame = Window.Current.Content as Frame;28 if (rootFrame == null)29 {30 rootFrame = new Frame();

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1{2 public Page4()3 {4 this.InitializeComponent();5 NavigationCacheMode = NavigationCacheMode.Enabled;6 }7 protected override void OnNavigatedTo(NavigationEventArgs e)8 {9 if (e.NavigationMode == NavigationMode.Back)10 {11 var state = (e.Parameter as RootFrameNavigationHelper.SaveStateEventArgs).PageState;12 if (state != null && state.ContainsKey("Page4State"))13 {14 textBox.Text = state["Page4State"].ToString();15 }16 }17 }18 protected override void OnNavigatedFrom(NavigationEventArgs e)19 {20 if (e.NavigationMode == NavigationMode.Back)21 {22 var state = (e.Parameter as RootFrameNavigationHelper.SaveStateEventArgs).PageState;23 state["Page4State"] = textBox.Text;24 }25 }26}27{28 public Page5()29 {30 this.InitializeComponent();31 NavigationCacheMode = NavigationCacheMode.Required;32 }33}34{35 public Page6()36 {37 this.InitializeComponent();38 NavigationCacheMode = NavigationCacheMode.Disabled;39 }40}41{42 public Page7()43 {44 this.InitializeComponent();45 NavigationCacheMode = NavigationCacheMode.Enabled;46 }47}48{49 public Page8()50 {51 this.InitializeComponent();52 NavigationCacheMode = NavigationCacheMode.Enabled;53 }54}55{56 public Page9()57 {58 this.InitializeComponent();59 NavigationCacheMode = NavigationCacheMode.Enabled;60 }61}62{63 public Page10()64 {65 this.InitializeComponent();66 NavigationCacheMode = NavigationCacheMode.Enabled;67 }68}69{70 public Page11()71 {72 this.InitializeComponent();73 NavigationCacheMode = NavigationCacheMode.Enabled;74 }75}76{

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SaveStateEventArgs

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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 navigationHelper = new NavigationHelper(this);14 navigationHelper.LoadState += navigationHelper_LoadState;15 navigationHelper.SaveState += navigationHelper_SaveState;16 }17 {18 get { return this.navigationHelper; }19 }20 {21 get { return this.defaultViewModel; }22 }23 private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)24 {25 e.PageState["TextBoxContent"] = textBox.Text;26 }27 private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)28 {29 if (e.PageState != null && e.PageState.ContainsKey("TextBoxContent"))30 {31 textBox.Text = e.PageState["TextBoxContent"] as string;32 }33 }34 protected override void OnNavigatedTo(NavigationEventArgs e)35 {36 navigationHelper.OnNavigatedTo(e);37 }38 protected override void OnNavigatedFrom(NavigationEventArgs e)39 {40 navigationHelper.OnNavigatedFrom(e);41 }42 }43}44Navigation Example (VB)45Navigation Example (C#)46Navigation Example (C++/CX)47Navigation Example (JavaScript)48Navigation Example (XAML)49Navigation Example (XAML) (VB)50Navigation Example (XAML) (C#)51Navigation Example (XAML) (C++/CX)52Navigation Example (XAML) (JavaScript)

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SaveStateEventArgs

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1private void OnNavigated(object sender, NavigationEventArgs e)2{3 if (e.NavigationMode == NavigationMode.New)4 {5 var rootFrame = sender as Frame;6 rootFrame.BackStack.Clear();7 }8}9private void OnNavigated(object sender, NavigationEventArgs e)10{11 if (e.NavigationMode == NavigationMode.New)12 {13 SuspensionManager.ClearFrameState();14 }15}16private void OnNavigated(object sender, NavigationEventArgs e)17{18 if (e.NavigationMode == NavigationMode.New)19 {20 var rootFrame = sender as Frame;21 rootFrame.BackStack.Clear();22 }23}24private void OnNavigated(object sender, NavigationEventArgs e)25{26 if (e.NavigationMode == NavigationMode.New)27 {28 SuspensionManager.ClearFrameState();29 }30}31private void OnNavigated(object sender, NavigationEventArgs e)32{33 if (e.NavigationMode == NavigationMode.New)34 {35 var rootFrame = sender as Frame;36 rootFrame.BackStack.Clear();37 }38}39private void OnNavigated(object sender, NavigationEventArgs e)40{41 if (e.NavigationMode == NavigationMode.New)42 {43 SuspensionManager.ClearFrameState();44 }45}46private void OnNavigated(object sender, NavigationEventArgs e)47{48 if (e.NavigationMode == NavigationMode.New)49 {50 var rootFrame = sender as Frame;51 rootFrame.BackStack.Clear();52 }53}54private void OnNavigated(object sender, NavigationEventArgs e)55{56 if (e.NavigationMode == NavigationMode.New)57 {58 SuspensionManager.ClearFrameState();59 }60}

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1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.Serialization;6using System.Runtime.Serialization.Json;7using System.Text;8using System.Threading.Tasks;9using Windows.Storage;10using Windows.UI.Xaml;11using Windows.UI.Xaml.Controls;12using Windows.UI.Xaml.Navigation;13{14 {15 private static Dictionary<String, Object> sessionState = new Dictionary<String, Object>();16 private static Dictionary<String, Object> _sessionState = new Dictionary<String, Object>();17 private static List<Type> _knownTypes = new List<Type>();18 private static Boolean _sessionStateRead = false;19 {20 get { return sessionState; }21 }22 public static void RegisterFrame(Frame frame, String sessionStateKey)23 {24 if (frame.GetValue(FrameSessionStateKeyProperty) != null)25 {26 throw new InvalidOperationException("Frames can only be registered to one session state key");27 }28 if (frame.GetValue(FrameSessionBaseKeyProperty) != null)29 {30 throw new InvalidOperationException("Frames must be either be registered before accessing frame session state, or not registered at all");31 }32 if (!frame.GetValue(NavigationHelper.FrameSessionStateKeyProperty).Equals(sessionStateKey))33 {34 throw new InvalidOperationException("Invalid RegisterFrame invocation for frame");35 }36 frame.SetValue(FrameSessionBaseKeyProperty, sessionStateKey);37 frame.Navigated += (sender, e) =>38 {39 if (e.NavigationMode == NavigationMode.New)40 {41 ClearFrameStateForFrame(frame);42 }43 };44 }45 public static Dictionary<String, Object> SessionStateForFrame(Frame frame)46 {47 var frameState = new Dictionary<String, Object>();48 var frameSessionKey = frame.GetValue(FrameSessionBaseKeyProperty) as String;49 if (frameSessionKey != null)50 {51 var frameSessionState = SessionState[frameSessionKey] as Dictionary<String, Object>;52 if (frameSessionState != null)53 {54 frameState = frameSessionState;55 }56 }57 return frameState;58 }59 public static void RegisterKnownType(Type type)60 {61 if (!_knownTypes.Contains(type))62 {63 _knownTypes.Add(type);64 }

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1using AppUIBasics.Common;2using AppUIBasics.Data;3using AppUIBasics.SamplePages;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 void navigationHelper_LoadState(object sender, LoadStateEventArgs e)19 {20 if (e.PageState == null) return;21 if (e.PageState.ContainsKey("SelectedItem"))22 {23 var selectedItem = (SampleDataItem)e.PageState["SelectedItem"];24 itemListView.SelectedItem = selectedItem;25 if (!Frame.Navigate(typeof(SamplePage1), selectedItem))26 {27 throw new Exception("Failed to create scenario page");28 }29 }30 }31 void navigationHelper_SaveState(object sender, SaveStateEventArgs e)32 {33 var selectedItem = (SampleDataItem)itemListView.SelectedItem;34 if (selectedItem != null)35 {36 e.PageState["SelectedItem"] = selectedItem;37 }38 }39 {40 get { return this.navigationHelper; }41 }42 {43 get { return this.defaultViewModel; }44 }45 protected override void OnNavigatedTo(NavigationEventArgs e)46 {47 navigationHelper.OnNavigatedTo(e);48 }49 protected override void OnNavigatedFrom(NavigationEventArgs e)50 {51 navigationHelper.OnNavigatedFrom(e);52 }53 private void itemListView_SelectionChanged(object sender, SelectionChangedEventArgs e)54 {55 var selectedItem = (SampleDataItem)itemListView.SelectedItem;56 if (

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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.Primitive;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 {21 get { return this.navigationHelper; }22 }23 {24 get { return this.defaultViewModel; }25 }26 public MainPage()27 {28 this.InitializeComponent();29 this.navigationHelper = new NavigationHelper(this);30 this.navigationHelper.LoadState += navigationHelper_LoadState;31 this.navigationHelper.SaveState += navigationHelper_SaveState;32 }33 private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)34 {35 }36 private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)37 {38 }39 protected override void OnNavigatedTo(NavigationEventArgs e)40 {41 navigationHelper.OnNavigatedTo(e);42 }43 protected override void OnNavigatedFrom(NavigationEventArgs e)44 {45 navigationHelper.OnNavigatedFrom(e);46 }47 private void ListView_SelectionChanged(object sender, SelectionChangedEventArgs e)48 {49 var selectedItem = e.AddedItems.FirstOrDefault();50 if (selectedItem != null)51 {52 this.Frame.Navigate(Type.GetType("AppUIBasics." + selectedItem.ToString()));53 }54 }55 }56}57 }58 }59 return frameState;60 }61 public static void RegisterKnownType(Type type)62 {63 if (!_knownTypes.Contains(type))64 {65 _knownTypes.Add(type);66 }

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1using AppUIBasics.Common;2using AppUIBasics.Data;3using AppUIBasics.SamplePages;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 void navigationHelper_LoadState(object sender, LoadStateEventArgs e)19 {20 if (e.PageState == null) return;21 if (e.PageState.ContainsKey("SelectedItem"))22 {23 var selectedItem = (SampleDataItem)e.PageState["SelectedItem"];24 itemListView.SelectedItem = selectedItem;25 if (!Frame.Navigate(typeof(SamplePage1), selectedItem))26 {27 throw new Exception("Failed to create scenario page");28 }29 }30 }31 void navigationHelper_SaveState(object sender, SaveStateEventArgs e)32 {33 var selectedItem = (SampleDataItem)itemListView.SelectedItem;34 if (selectedItem != null)35 {36 e.PageState["SelectedItem"] = selectedItem;37 }38 }39 {40 get { return this.navigationHelper; }41 }42 {43 get { return this.defaultViewModel; }44 }45 protected override void OnNavigatedTo(NavigationEventArgs e)46 {47 navigationHelper.OnNavigatedTo(e);48 }49 protected override void OnNavigatedFrom(NavigationEventArgs e)50 {51 navigationHelper.OnNavigatedFrom(e);52 }53 private void itemListView_SelectionChanged(object sender, SelectionChangedEventArgs e)54 {55 var selectedItem = (SampleDataItem)itemListView.SelectedItem;56 if (

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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.Primitive;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 {21 get { return this.navigationHelper; }22 }23 {24 get { return this.defaultViewModel; }25 }26 public MainPage()27 {28 this.InitializeComponent();29 this.navigationHelper = new NavigationHelper(this);30 this.navigationHelper.LoadState += navigationHelper_LoadState;31 this.navigationHelper.SaveState += navigationHelper_SaveState;32 }33 private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)34 {35 }36 private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)37 {38 }39 protected override void OnNavigatedTo(NavigationEventArgs e)40 {41 navigationHelper.OnNavigatedTo(e);42 }43 protected override void OnNavigatedFrom(NavigationEventArgs e)44 {45 navigationHelper.OnNavigatedFrom(e);46 }47 private void ListView_SelectionChanged(object sender, SelectionChangedEventArgs e)48 {49 var selectedItem = e.AddedItems.FirstOrDefault();50 if (selectedItem != null)51 {52 this.Frame.Navigate(Type.GetType("AppUIBasics." + selectedItem.ToString()));53 }54 }55 }56}

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1using AppUIBasics.Common;2using AppUIBasics.Data;3using AppUIBasics.SamplePages;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 void navigationHelper_LoadState(object sender, LoadStateEventArgs e)19 {20 if (e.PageState == null) return;21 if (e.PageState.ContainsKey("SelectedItem"))22 {23 var selectedItem = (SampleDataItem)e.PageState["SelectedItem"];24 itemListView.SelectedItem = selectedItem;25 if (!Frame.Navigate(typeof(SamplePage1), selectedItem))26 {27 throw new Exception("Failed to create scenario page");28 }29 }30 }31 void navigationHelper_SaveState(object sender, SaveStateEventArgs e)32 {33 var selectedItem = (SampleDataItem)itemListView.SelectedItem;34 if (selectedItem != null)35 {36 e.PageState["SelectedItem"] = selectedItem;37 }38 }39 {40 get { return this.navigationHelper; }41 }42 {43 get { return this.defaultViewModel; }44 }45 protected override void OnNavigatedTo(NavigationEventArgs e)46 {47 navigationHelper.OnNavigatedTo(e);48 }49 protected override void OnNavigatedFrom(NavigationEventArgs e)50 {51 navigationHelper.OnNavigatedFrom(e);52 }53 private void itemListView_SelectionChanged(object sender, SelectionChangedEventArgs e)54 {55 var selectedItem = (SampleDataItem)itemListView.SelectedItem;56 if (

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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.Primitive;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 {21 get { return this.navigationHelper; }22 }23 {24 get { return this.defaultViewModel; }25 }26 public MainPage()27 {28 this.InitializeComponent();29 this.navigationHelper = new NavigationHelper(this);30 this.navigationHelper.LoadState += navigationHelper_LoadState;31 this.navigationHelper.SaveState += navigationHelper_SaveState;32 }33 private void navigationHelper_SaveState(object sender, SaveStateEventArgs e)34 {35 }36 private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)37 {38 }39 protected override void OnNavigatedTo(NavigationEventArgs e)40 {41 navigationHelper.OnNavigatedTo(e);42 }43 protected override void OnNavigatedFrom(NavigationEventArgs e)44 {45 navigationHelper.OnNavigatedFrom(e);46 }47 private void ListView_SelectionChanged(object sender, SelectionChangedEventArgs e)48 {49 var selectedItem = e.AddedItems.FirstOrDefault();50 if (selectedItem != null)51 {52 this.Frame.Navigate(Type.GetType("AppUIBasics." + selectedItem.ToString()));53 }54 }55 }56}

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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.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

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