Alexandria.Common.SuspensionManager.RestoreAsync C# (CSharp) Метод

RestoreAsync() публичный статический Метод

Restores previously saved SessionState. Any Frame instances registered with RegisterFrame will also restore their prior navigation state, which in turn gives their active Page an opportunity restore its state.
public static RestoreAsync ( ) : System.Threading.Tasks.Task
Результат System.Threading.Tasks.Task
        public static async Task RestoreAsync()
        {
            _sessionState = new Dictionary<String, Object>();

            try
            {
                // Get the input stream for the SessionState file
                StorageFile file = await ApplicationData.Current.LocalFolder.GetFileAsync(sessionStateFilename);
                using (IInputStream inStream = await file.OpenSequentialReadAsync())
                {
                    // Deserialize the Session State
                    DataContractSerializer serializer = new DataContractSerializer(typeof(Dictionary<string, object>), _knownTypes);
                    _sessionState = (Dictionary<string, object>)serializer.ReadObject(inStream.AsStreamForRead());
                }

                // Restore any registered frames to their saved state
                foreach (var weakFrameReference in _registeredFrames)
                {
                    Frame frame;
                    if (weakFrameReference.TryGetTarget(out frame))
                    {
                        frame.ClearValue(FrameSessionStateProperty);
                        RestoreFrameNavigationState(frame);
                    }
                }
            }
            catch (Exception e)
            {
                throw new SuspensionManagerException(e);
            }
        }