Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use SuspensionManagerException method of AppUIBasics.Common.SuspensionManagerException class

Best WinAppDriver code snippet using AppUIBasics.Common.SuspensionManagerException.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.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;17using AppUIBasics.Common;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();

SuspensionManagerException

Using AI Code Generation

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;10{11    {12        private static Dictionary<String, Object> sessionState = new Dictionary<String, Object>();13        private static bool sessionStateRead;14        private const String sessionStateFilename = "_sessionState.xml";15        {16            get { return sessionState; }17        }18        public static async Task SaveAsync()19        {20            StorageFile file = await ApplicationData.Current.LocalFolder.CreateFileAsync(sessionStateFilename, CreationCollisionOption.ReplaceExisting);21            using (Stream writeStream = await file.OpenStreamForWriteAsync())22            {23                DataContractSerializer serializer = new DataContractSerializer(typeof(Dictionary<String, Object>));24                serializer.WriteObject(writeStream, sessionState);25                await writeStream.FlushAsync();26            }27        }

SuspensionManagerException

Using AI Code Generation

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;10{11    {12        private static Dictionary<string, object> sessionState = new Dictionary<string, object>();13        private static Dictionary<string, object> _sessionState = new Dictionary<string, object>();14        {15            get { return sessionState; }16            set { sessionState = value; }17        }18        {19            get { return sessionState; }20            set { sessionState = value; }21        }22        public static void SaveAsync()23        {24            SaveAsyncInternal().GetResults();25        }26        private static async Task SaveAsyncInternal()27        {28            {29                var localFolder = ApplicationData.Current.LocalFolder;30                var sessionData = new MemoryStream();31                DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(Dictionary<string, object>));32                serializer.WriteObject(sessionData, SessionState);33                using (var sessionStateStream = await localFolder.OpenStreamForWriteAsync("SessionState.json", CreationCollisionOption.ReplaceExisting))34                {35                    sessionData.Seek(0, SeekOrigin.Begin);36                    await sessionData.CopyToAsync(sessionStateStream);37                }38            }39            catch (Exception e)40            {41                var message = e.Message;42            }43        }44        public static void Restore()45        {46            RestoreInternal().GetResults();47        }48        private static async Task RestoreInternal()49        {50            {51                var localFolder = ApplicationData.Current.LocalFolder;52                using (var inStream = await localFolder.OpenStreamForReadAsync("SessionState.json"))53                {54                    DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(Dictionary<string, object>));55                    _sessionState = (Dictionary<string, object>)serializer.ReadObject(inStream);56                }57            }58            catch (Exception e)59            {60                var message = e.Message;61            }62        }63    }64}65using System;66using System.Collections.Generic;67using System.IO;68using System.Linq;69using System.Runtime.Serialization;70using System.Runtime.Serialization.Json;

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.Storage;9{10    {11        private const string sessionStateFilename = "_sessionState.xml";12        private static Dictionary<string, object> sessionState = new Dictionary<string, object>();13        private static bool sessionStateDirty = false;14        private static List<Type> knownTypes = new List<Type>();15        {16            get { return sessionState; }17        }18        {19            get { return knownTypes; }20        }21        public static async Task SaveAsync()22        {23            MemoryStream sessionData = new MemoryStream();24            DataContractSerializer serializer = new DataContractSerializer(typeof(Dictionary<string, object>), knownTypes);

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 static SuspensionManagerExceptionExceptionHelper _sessionStateHelper = new SuspensionManagerExceptionExceptionHelper();15        private const string sessionStateFilename = "_sessionState.xml";16        {17            get { return sessionState; }18        }19        {20            get { return knownTypes; }21        }22        public static async Task SaveAsync()23        {24            await _sessionStateHelper.SaveAsync(sessionState, known

SuspensionManagerException

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 e)25        {26            if (System.Diagnostics.Debugger.IsAttached)27            {28                this.DebugSettings.EnableFrameRateCounter = true;29            }30            Frame rootFrame = Window.Current.Content as Frame;31            if (rootFrame == null)32            {33                rootFrame = new Frame();

SuspensionManagerException

Using AI Code Generation

1using Windows.UI.Xaml.Controls;2using Windows.UI.Xaml.Navigation;3using AppUIBasics.Common;4{5    {6        public SuspensionManagerExceptionPage()7        {8            this.InitializeComponent();9        }10        protected override void OnNavigatedTo(NavigationEventArgs e)11        {12            if (SuspensionManagerException.SessionState.ContainsKey("TextBoxValue"))13            {14                TextBox1.Text = SuspensionManagerException.SessionState["TextBoxValue"].ToString();15            }16        }17        protected override void OnNavigatedFrom(NavigationEventArgs e)18        {19            SuspensionManagerException.SessionState["TextBoxValue"] = TextBox1.Text;20        }21    }22}23using Windows.UI.Xaml.Controls;24using Windows.UI.Xaml.Navigation;25using AppUIBasics.Common;26{27    {28        public SuspensionManagerExceptionPage()29        {30            this.InitializeComponent();31        }32        protected override void OnNavigatedTo(NavigationEventArgs e)33        {34            if (SuspensionManagerException.SessionState.ContainsKey("TextBoxValue"))35            {36                TextBox1.Text = SuspensionManagerException.SessionState["TextBoxValue"].ToString();37            }38        }39        protected override void OnNavigatedFrom(NavigationEventArgs e)40        {41            SuspensionManagerException.SessionState["TextBoxValue"] = TextBox1.Text;42        }43    }44}45using Windows.UI.Xaml.Controls;46using Windows.UI.Xaml.Navigation;47using AppUIBasics.Common;48{49    {50        public SuspensionManagerExceptionPage()51        {52            this.InitializeComponent();53        }54        protected override void OnNavigatedTo(NavigationEventArgs e)55        {56            if (SuspensionManagerException.SessionState.ContainsKey("TextBoxValue"))57            {58                TextBox1.Text = SuspensionManagerException.SessionState["TextBoxValue"].ToString();59            }60        }61        protected override void OnNavigatedFrom(NavigationEventArgs e)62        {

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 bool sessionStateRead = false;14        public static void RegisterFrame(Frame frame, string sessionStateKey, bool sessionState)15        {16            if (frame.GetValue(FrameSessionStateKeyProperty) != null)17            {18                throw new InvalidOperationException("Frames can only be registered to one session state key");19            }20            if (frame.GetValue(FrameSessionBaseKeyProperty) != null)21            {22                throw new InvalidOperationException("Frames must be either be registered to register with session state, or they must be registered to preserve their cache while navigation but not register with session state");23            }24            if (sessionState)25            {26                frame.SetValue(FrameSessionStateKeyProperty, sessionStateKey);27                frame.SetValue(FrameSessionBaseKeyProperty, sessionStateKey);28                frame.Navigated += (sender, e) => { SaveNavigationState((Frame)sender); };29            }30            {31                frame.SetValue(FrameSessionBaseKeyProperty, sessionStateKey);32            }33            if (sessionState)34            {35                RestoreFrameNavigationState(frame);36            }37        }

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.UI.Xaml;9using Windows.UI.Xaml.Controls;10using Windows.UI.Xaml.Navigation;11using AppUIBasics.Common;12using AppUIBasics.Data;13using AppUIBasics.ControlPages;14{15    {16        private TransitionCollection transitions;17        public App()18        {19            this.InitializeComponent();20            this.Suspending += OnSuspending;21        }22        protected override void OnLaunched(LaunchActivatedEventArgs e)23        {24            Frame rootFrame = Window.Current.Content as Frame;25            if (rootFrame == null)26            {27                rootFrame = new Frame();28                SuspensionManagerException.RegisterFrame(rootFrame, "AppFrame");29                if (e.PreviousExecutionState == ApplicationExecutionState.Terminated)30                {31                    {32                        SuspensionManagerException.RestoreAsync().GetResults();33                    }34                    catch (SuspensionManagerException)35                    {36                    }37                }38                Window.Current.Content = rootFrame;39            }40            if (rootFrame.Content == null)41            {42                if (!rootFrame.Navigate(typeof(HomePage), e.Arguments))43                {44                    throw new Exception("Failed to create initial page");45                }46            }47            Window.Current.Activate();48        }49        protected override void OnActivated(IActivatedEventArgs args)50        {51            if (args.Kind == ActivationKind.Protocol)52            {53                var protocolArgs = args as ProtocolActivatedEventArgs;54                var rootFrame = Window.Current.Content as Frame;55                if (rootFrame == null)56                {57                    rootFrame = new Frame();58                    SuspensionManagerException.RegisterFrame(rootFrame, "AppFrame");59                    Window.Current.Content = rootFrame;60                }61                if (rootFrame.Content == null)62                {63                    if (!rootFrame.Navigate(typeof(HomePage), protocolArgs.Uri.AbsolutePath))64                    {65                        throw new Exception("Failed to create initial page");66                    }67                }68                Window.Current.Activate();69            }70        }71        protected override void OnFileActivated(FileActivatedEventArgs args)72        {73            var rootFrame = Window.Current.Content as Frame;74            if (rootFrame == null)75            {76                rootFrame = new Frame();77                SuspensionManagerException.RegisterFrame(rootFrame, "AppFrame");78                Window.Current.Content = rootFrame;

SuspensionManagerException

Using AI Code Generation

1        }2    }3}4using Windows.UI.Xaml.Controls;5using Windows.UI.Xaml.Navigation;6using AppUIBasics.Common;7{8    {9        public SuspensionManagerExceptionPage()10        {11            this.InitializeComponent();12        }13        protected override void OnNavigatedTo(NavigationEventArgs e)14        {15            if (SuspensionManagerException.SessionState.ContainsKey("TextBoxValue"))16            {17                TextBox1.Text = SuspensionManagerException.SessionState["TextBoxValue"].ToString();18            }19        }20        protected override void OnNavigatedFrom(NavigationEventArgs e)21        {

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 bool sessionStateRead = false;14        public static void RegisterFrame(Frame frame, string sessionStateKey, bool sessionState)15        {16            if (frame.GetValue(FrameSessionStateKeyProperty) != null)17            {18                throw new InvalidOperationException("Frames can only be registered to one session state key");19            }20            if (frame.GetValue(FrameSessionBaseKeyProperty) != null)21            {22                throw new InvalidOperationException("Frames must be either be registered to register with session state, or they must be registered to preserve their cache while navigation but not register with session state");23            }24            if (sessionState)25            {26                frame.SetValue(FrameSessionStateKeyProperty, sessionStateKey);27                frame.SetValue(FrameSessionBaseKeyProperty, sessionStateKey);28                frame.Navigated += (sender, e) => { SaveNavigationState((Frame)sender); };29            }30            {31                frame.SetValue(FrameSessionBaseKeyProperty, sessionStateKey);32            }33            if (sessionState)34            {35                RestoreFrameNavigationState(frame);36            }37        }

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.