Catrobat.IDE.WindowsPhone.Views.ViewPageBase.ViewPageBase C# (CSharp) Метод

        protected ViewPageBase()
        {
            if (!ViewModelBase.IsInDesignModeStatic)
                ViewModel.NavigationObject = new NavigationObjectPage(this);

            NavigationCacheMode = NavigationCacheMode.Disabled;
            
            Messenger.Default.Register<MessageBase>(this,
              ViewModelMessagingToken.ClearPageCache,
              CrearPageCacheMessageAction);
        }