Rx 中 FromEventPattern 多个同类型控件的事件

[jp311]

网上只有通过 Merge 把多个 IObservable 合并起来的方案 http://www.tikalk.com/net/blog/getting-started-reactive-extensions-part-2

Observable.FromEventPattern(blueBorder, "MouseMove")
    .Merge(Observable.FromEventPattern(greenBorder, "MouseMove"))
    .Merge(Observable.FromEventPattern(redBorder, "MouseMove"))
    .Merge(Observable.FromEventPattern(yellowBorder, "MouseMove"))
    .Throttle(TimeSpan.FromSeconds(1))
    .ObserveOnDispatcher()
    .Subscribe(ShowColor2);

难道只能遍历解决

new List<Control> { button1, button2 }.ForEach(c =>
                Observable.FromEventPattern<EventArgs>(c, "MouseEnter")
                .Subscribe(e => Console.WriteLine("", c.Text)));

没有更优雅的方法吗？

[q107770540]

RX = Observables + LINQ + Schedulers 帮顶一下