public Flights()
        {
            this.InitializeComponent();
            this.DataContext = SharedContext.Context;

            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
            this.navigationHelper.SaveState += this.NavigationHelper_SaveState;
        }
        public LogonPage() 
        {
            this.InitializeComponent();

            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += this.NavigationHelper_LoadState;
            this.navigationHelper.SaveState += this.NavigationHelper_SaveState;

            this.DataContext = this.pageContext;
        }
        public Airlines()
        {
            this.InitializeComponent();
            this.NavigationCacheMode = NavigationCacheMode.Required;
            this.navigationHelper = new NavigationHelper(this);
            this.navigationHelper.LoadState += this.navigationHelper_LoadState;
            this.navigationHelper.SaveState += this.navigationHelper_SaveState;

            // TODO: Change 1 - Setting the page's datacontext
            //if (SharedContext.Context == null)
            //{
            //    this.CreateContext();
            //}
            //else
            //{
            //    this.DataContext = SharedContext.Context;
            //    SharedContext.Context.IsStoreCreated = true;
            //}

#if WINDOWS_PHONE_APP
			((AppBarButton)AppCommandBar.SecondaryCommands[0]).Visibility = Visibility.Visible;
#endif
        }