两个ScrollViewers同步滚动，只要任何一个滚动WPF [英] Synchronized scrolling of two ScrollViewers whenever any one is scrolled in wpf

问题描述

我已经通过线了：

<一个href="http://stackoverflow.com/questions/5957138/binding-two-verticalscrollbars-one-to-another">binding 2 VerticalScrollBars一个到另一个

这几乎帮助实现这一目标，但仍然有一些人失踪。这是那动人的左右或上下滚动条给出预期滚动在我的两个scrollviewers但行为时，我们试图滚动使用/点击箭头按钮，这些滚动条在scrollviewers只有一个的ScrollViewer滚动的目的是不预期的行为。

it has almost helped to achieve the goal but still there is something missing. It is that moving the scrollbars left-right or up-down gives expected behavior of scrolling in both of my scrollviewers but when we try to scroll using/clicking arrow buttons at the ends of these scrollbars in scrollviewers only one scrollviewer is scrolled which is not the expected behavior.

那么我们还有什么需要添加/编辑解决此问题？

So what else we need to add/edit to solve this?

推荐答案

要做到这一点的方法之一是使用 ScrollChanged 事件来更新其他的ScrollViewer

One way to do this is using the ScrollChanged event to update the other ScrollViewer

<ScrollViewer Name="sv1" Height="100" 
              HorizontalScrollBarVisibility="Auto"
              ScrollChanged="ScrollChanged">
    <Grid Height="1000" Width="1000" Background="Green" />
</ScrollViewer>

<ScrollViewer Name="sv2" Height="100" 
              HorizontalScrollBarVisibility="Auto"
              ScrollChanged="ScrollChanged">
    <Grid Height="1000" Width="1000" Background="Blue" />
</ScrollViewer>

private void ScrollChanged(object sender, ScrollChangedEventArgs e)
    {
        if (sender == sv1)
        {
            sv2.ScrollToVerticalOffset(e.VerticalOffset);
            sv2.ScrollToHorizontalOffset(e.HorizontalOffset);
        }
        else
        {
            sv1.ScrollToVerticalOffset(e.VerticalOffset);
            sv1.ScrollToHorizontalOffset(e.HorizontalOffset);
        }
    }

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