Double Click with Reactive UI

gistfile1.cs

        public MyUserControlView()
        {
            InitializeComponent();

            var mouseUp = Observable.FromEventPattern<
                MouseButtonEventHandler,
                MouseButtonEventArgs>
                (h => MouseLeftButtonUp += h, h => MouseLeftButtonUp -= h);

            var doubleClick = mouseUp.SelectMany(
                e => mouseUp.Take(1).Timeout(
                    TimeSpan.FromMilliseconds(500),
                    Observable.Empty<EventPattern<MouseButtonEventArgs>>()));

            doubleClick.Select(_ => this.list.SelectedItem)
                .Where(x => x != null)
                .Subscribe(x => ((MyViewModel) DataContext).MyCommand.Execute(null));
       }