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How to use SuspensionManagerException class of AppUIBasics.Common package

Best WinAppDriver code snippet using AppUIBasics.Common.SuspensionManagerException

SuspensionManager.cs

Source:SuspensionManager.cs

...78                }79            }80            catch (Exception e)81            {82                throw new SuspensionManagerException(e);83            }84        }85        /// <summary>86        /// Restores previously saved <see cref="SessionState"/>.  Any <see cref="Frame"/> instances87        /// registered with <see cref="RegisterFrame"/> will also restore their prior navigation88        /// state, which in turn gives their active <see cref="Page"/> an opportunity restore its89        /// state.90        /// </summary>91        /// <returns>An asynchronous task that reflects when session state has been read.  The92        /// content of <see cref="SessionState"/> should not be relied upon until this task93        /// completes.</returns>94        public static async Task RestoreAsync()95        {96            _sessionState = new Dictionary<String, Object>();97            try98            {99                // Get the input stream for the SessionState file100                StorageFile file = await ApplicationData.Current.LocalFolder.GetFileAsync(sessionStateFilename);101                using (IInputStream inStream = await file.OpenSequentialReadAsync())102                {103                    // Deserialize the Session State104                    DataContractSerializer serializer = new DataContractSerializer(typeof(Dictionary<string, object>), _knownTypes);105                    _sessionState = (Dictionary<string, object>)serializer.ReadObject(inStream.AsStreamForRead());106                }107                // Restore any registered frames to their saved state108                foreach (var weakFrameReference in _registeredFrames)109                {110                    Frame frame;111                    if (weakFrameReference.TryGetTarget(out frame))112                    {113                        frame.ClearValue(FrameSessionStateProperty);114                        RestoreFrameNavigationState(frame);115                    }116                }117            }118            catch (Exception e)119            {120                throw new SuspensionManagerException(e);121            }122        }123        private static DependencyProperty FrameSessionStateKeyProperty =124            DependencyProperty.RegisterAttached("_FrameSessionStateKey", typeof(String), typeof(SuspensionManager), null);125        private static DependencyProperty FrameSessionStateProperty =126            DependencyProperty.RegisterAttached("_FrameSessionState", typeof(Dictionary<String, Object>), typeof(SuspensionManager), null);127        private static List<WeakReference<Frame>> _registeredFrames = new List<WeakReference<Frame>>();128        /// <summary>129        /// Registers a <see cref="Frame"/> instance to allow its navigation history to be saved to130        /// and restored from <see cref="SessionState"/>.  Frames should be registered once131        /// immediately after creation if they will participate in session state management.  Upon132        /// registration if state has already been restored for the specified key133        /// the navigation history will immediately be restored.  Subsequent invocations of134        /// <see cref="RestoreAsync"/> will also restore navigation history.135        /// </summary>136        /// <param name="frame">An instance whose navigation history should be managed by137        /// <see cref="SuspensionManager"/></param>138        /// <param name="sessionStateKey">A unique key into <see cref="SessionState"/> used to139        /// store navigation-related information.</param>140        public static void RegisterFrame(Frame frame, String sessionStateKey)141        {142            if (frame.GetValue(FrameSessionStateKeyProperty) != null)143            {144                throw new InvalidOperationException("Frames can only be registered to one session state key");145            }146            if (frame.GetValue(FrameSessionStateProperty) != null)147            {148                throw new InvalidOperationException("Frames must be either be registered before accessing frame session state, or not registered at all");149            }150            // Use a dependency property to associate the session key with a frame, and keep a list of frames whose151            // navigation state should be managed152            frame.SetValue(FrameSessionStateKeyProperty, sessionStateKey);153            _registeredFrames.Add(new WeakReference<Frame>(frame));154            // Check to see if navigation state can be restored155            RestoreFrameNavigationState(frame);156        }157        /// <summary>158        /// Disassociates a <see cref="Frame"/> previously registered by <see cref="RegisterFrame"/>159        /// from <see cref="SessionState"/>.  Any navigation state previously captured will be160        /// removed.161        /// </summary>162        /// <param name="frame">An instance whose navigation history should no longer be163        /// managed.</param>164        public static void UnregisterFrame(Frame frame)165        {166            // Remove session state and remove the frame from the list of frames whose navigation167            // state will be saved (along with any weak references that are no longer reachable)168            SessionState.Remove((String)frame.GetValue(FrameSessionStateKeyProperty));169            _registeredFrames.RemoveAll((weakFrameReference) =>170            {171                Frame testFrame;172                return !weakFrameReference.TryGetTarget(out testFrame) || testFrame == frame;173            });174        }175        /// <summary>176        /// Provides storage for session state associated with the specified <see cref="Frame"/>.177        /// Frames that have been previously registered with <see cref="RegisterFrame"/> have178        /// their session state saved and restored automatically as a part of the global179        /// <see cref="SessionState"/>.  Frames that are not registered have transient state180        /// that can still be useful when restoring pages that have been discarded from the181        /// navigation cache.182        /// </summary>183        /// <remarks>Apps may choose to rely on <see cref="NavigationHelper"/> to manage184        /// page-specific state instead of working with frame session state directly.</remarks>185        /// <param name="frame">The instance for which session state is desired.</param>186        /// <returns>A collection of state subject to the same serialization mechanism as187        /// <see cref="SessionState"/>.</returns>188        public static Dictionary<String, Object> SessionStateForFrame(Frame frame)189        {190            var frameState = (Dictionary<String, Object>)frame.GetValue(FrameSessionStateProperty);191            if (frameState == null)192            {193                var frameSessionKey = (String)frame.GetValue(FrameSessionStateKeyProperty);194                if (frameSessionKey != null)195                {196                    // Registered frames reflect the corresponding session state197                    if (!_sessionState.ContainsKey(frameSessionKey))198                    {199                        _sessionState[frameSessionKey] = new Dictionary<String, Object>();200                    }201                    frameState = (Dictionary<String, Object>)_sessionState[frameSessionKey];202                }203                else204                {205                    // Frames that aren't registered have transient state206                    frameState = new Dictionary<String, Object>();207                }208                frame.SetValue(FrameSessionStateProperty, frameState);209            }210            return frameState;211        }212        private static void RestoreFrameNavigationState(Frame frame)213        {214            var frameState = SessionStateForFrame(frame);215            if (frameState.ContainsKey("Navigation"))216            {217                frame.SetNavigationState((String)frameState["Navigation"]);218            }219        }220        private static void SaveFrameNavigationState(Frame frame)221        {222            var frameState = SessionStateForFrame(frame);223            frameState["Navigation"] = frame.GetNavigationState();224        }225    }226    public class SuspensionManagerException : Exception227    {228        public SuspensionManagerException()229        {230        }231        public SuspensionManagerException(Exception e)232            : base("SuspensionManager failed", e)233        {234        }235    }236}...

SuspensionManagerException

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.Serialization;6using System.Text;7using System.Threading.Tasks;8using Windows.ApplicationModel;9using Windows.Storage;10{11    {12        private static Dictionary<string, object> sessionState = new Dictionary<string, object>();13        private static List<Type> knownTypes = new List<Type>();14        private const string sessionStateFilename = "_sessionState.xml";15        {16            get { return sessionState; }17        }18        {19            get { return knownTypes; }20        }

SuspensionManagerException

Using AI Code Generation

1using AppUIBasics.Common;2using System;3using System.Collections.Generic;4using System.IO;5using System.Linq;6using System.Runtime.Serialization;7using System.Runtime.Serialization.Json;8using System.Text;9using System.Threading.Tasks;10using Windows.Storage;11{12    {13        public SuspensionManagerException() { }14        public SuspensionManagerException(string message) : base(message) { }15        public SuspensionManagerException(string message, Exception innerException) : base(message, innerException) { }16        protected SuspensionManagerException(SerializationInfo info, StreamingContext context) : base(info, context) { }17    }18}19using AppUIBasics.Common;20using System;21using System.Collections.Generic;22using System.IO;23using System.Linq;24using System.Runtime.Serialization;25using System.Runtime.Serialization.Json;26using System.Text;27using System.Threading.Tasks;28using Windows.Storage;29{30    {31        private const string sessionStateFilename = "_sessionState.xml";32        private static Dictionary<string, object> sessionState = new Dictionary<string, object>();33        private static bool sessionStateNeedsSaving = false;34        {35            get { return sessionState; }36        }37        public static async Task SaveAsync()38        {39            if (!sessionStateNeedsSaving) return;40            {41                MemoryStream sessionData = new MemoryStream();42                DataContractSerializer serializer = new DataContractSerializer(typeof(Dictionary<string, object>));43                serializer.WriteObject(sessionData, sessionState);44                StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync(sessionStateFilename, CreationCollisionOption.ReplaceExisting);45                using (IOutputStream outStream = await file.OpenSequentialWriteAsync())46                {47                    using (DataWriter dataWriter = new DataWriter(outStream))48                    {49                        dataWriter.UnicodeEncoding = UnicodeEncoding.Utf8;50                        dataWriter.WriteString(Encoding.UTF8.GetString(sessionData.ToArray(), 0, (int)sessionData.Length));51                        await dataWriter.StoreAsync();52                        await outStream.FlushAsync();53                    }54                }55                sessionStateNeedsSaving = false;56            }57            catch (Suspension

SuspensionManagerException

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 SuspensionManagerExceptionPage()8        {9            this.InitializeComponent();10        }11        protected override void OnNavigatedTo(NavigationEventArgs e)12        {

SuspensionManagerException

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.IO;4using System.Linq;5using System.Runtime.Serialization;6using System.Text;7using System.Threading.Tasks;8using Windows.ApplicationModel;9using Windows.Storage;10using Windows.UI.Xaml;11using Windows.UI.Xaml.Controls;12using Windows.UI.Xaml.Navigation;13{14    {15        private const string sessionStateFilename = "_sessionState.xml";16        private static Dictionary<string, object> sessionState = new Dictionary<string, object>();17        private static List<Type> registeredTypes = new List<Type>();18        private static bool sessionStateReady = false;19        private static Frame frame;20        public static void RegisterFrame(Frame frame, Type sessionBaseKey)21        {22            SuspensionManager.frame = frame;23            frame.RegisterPropertyChangedCallback(Frame.BackStackDepthProperty, BackStackDepthPropertyChanged);24            frame.Navigated += Frame_Navigated;25        }26        private static void Frame_Navigated(object sender, NavigationEventArgs e)27        {28            if (e.NavigationMode == NavigationMode.New)29            {30                frame.ForwardStack.Clear();31            }32        }33        private static void BackStackDepthPropertyChanged(DependencyObject sender, DependencyProperty dp)34        {35            var frame = sender as Frame;36            if (frame != null && frame.BackStackDepth == 0)37            {38                sessionState.Clear();39            }40        }41        public static void RegisterType(Type type)42        {43            lock (registeredTypes)44            {45                if (!registeredTypes.Contains(type))46                {

SuspensionManagerException

Using AI Code Generation

1using AppUIBasics.Common;2using Windows.UI.Xaml.Controls;3using Windows.UI.Xaml.Navigation;4{5    {6        public SuspensionManagerExceptionPage()7        {8            this.InitializeComponent();9        }10        protected override void OnNavigatedTo(NavigationEventArgs e)11        {

SuspensionManagerException

Using AI Code Generation

1using System;2using System.Collections.Generic;3using System.Linq;4using System.Text;5using System.Threading.Tasks;6using Windows.ApplicationModel;7using Windows.ApplicationModel.Activation;8using Windows.ApplicationModel.Core;9using Windows.UI.Core;10using Windows.UI.Xaml;11using Windows.UI.Xaml.Controls;12using Windows.UI.Xaml.Navigation;13using AppUIBasics.Common;14using AppUIBasics.Data;15using AppUIBasics.SamplePages;16{17    {18        public static SuspensionManagerException SuspensionManagerException { get; private set; }19        public static Frame RootFrame { get; private set; }20        public static Frame RootFrameException { get; private set; }21        public App()22        {23            InitializeComponent();24            Suspending += OnSuspending;25            UnhandledException += App_UnhandledException;26        }27        private void App_UnhandledException(object sender, UnhandledExceptionEventArgs e)28        {29            e.Handled = true;30            SuspensionManagerException.SessionState["Exception"] = e.Exception;31            RootFrameException.Navigate(typeof(SampleExceptionPage));32        }33        protected override async void OnLaunched(LaunchActivatedEventArgs e)34        {35            RootFrame = Window.Current.Content as Frame;36            RootFrameException = Window.Current.Content as Frame;37            if (RootFrame == null)38            {39                RootFrame = new Frame();40                SuspensionManagerException = new SuspensionManagerException(RootFrame, "AppFrameException");41                SuspensionManagerException.RegisterFrame(RootFrameException, "AppFrameException");42                Window.Current.Content = RootFrame;43            }44            if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)45            {46                {47                    await SuspensionManagerException.RestoreAsync();48                }49                catch (SuspensionManagerException)50                {51                }52            }53            Window.Current.Activate();54            if (RootFrame.Content == null)55            {

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