同步2个scrollviewers silverlight

Question

我想同步2个滚动查看器.请让我知道如何获得两个scrollviewer的滚动事件,然后同步它们？

Answer 1

首先获取要同步的滚动查看器的2个滚动条.在这种情况下,scrollviewer1和scrollviewer2 随后我们得到两个滚动条的事件处理程序,在这种情况下,垂直.然后我们可以通过事件轻松地同步它们.在ScrollToVerticalOffset将滚动按另一个则.

        ScrollBar vertical1 = ((FrameworkElement)VisualTreeHelper.GetChild(scrollviewer1, 0)).FindName("VerticalScrollBar") as ScrollBar;
        vertical1.ValueChanged += new RoutedPropertyChangedEventHandler<double>(vertical1_ValueChanged);

        ScrollBar vertical2 = ((FrameworkElement)VisualTreeHelper.GetChild(scrollviewer2, 0)).FindName("VerticalScrollBar") as ScrollBar;
        vertical2.ValueChanged += new RoutedPropertyChangedEventHandler<double>(vertical2_ValueChanged);


    void vertical1_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
    {
        scrollviewer2.ScrollToVerticalOffset(e.NewValue);
    }

    void vertical2_ValueChanged(object sender, RoutedPropertyChangedEventArgs<double> e)
    {
        scrollviewer1.ScrollToVerticalOffset(e.NewValue);
    }

希望这可以帮助!