public MainPage()
        {
            this.InitializeComponent();

            //コールバックURLの作成
            var callbackUrl = WebAuthenticationBroker.GetCurrentApplicationCallbackUri().ToString();

            _twitterRequest = new TwitterRequest(_consumer_key, _consumer_key_secret, callbackUrl);
            _passwordManager = new PasswordManager(_valutResource);
        }
        public MainPage()
        {
            this.InitializeComponent();

            //コールバックURLの作成
            var callbackUrl = WebAuthenticationBroker.GetCurrentApplicationCallbackUri().ToString();

            _twitterRequest  = new TwitterRequest(_consumer_key, _consumer_key_secret, callbackUrl);
            _passwordManager = new PasswordManager(_valutResource);
        }