还需要给ScrollViewer注册一个鼠标滚轮事件！

XAML：

<ScrollViewer x:Name="scrollViewer" Width="950" Height="480" VerticalScrollBarVisibility="Auto" HorizontalScrollBarVisibility="Hidden" PreviewMouseWheel="ScrollViewer_PreviewMouseWheel">

    // ......

</ScrollViewer >

后台代码实现：

// 使得ScrollViewer可以滚动

private void ScrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)

{

    var eventArg = new MouseWheelEventArgs(e.MouseDevice, e.Timestamp, e.Delta);

    eventArg.RoutedEvent = UIElement.MouseWheelEvent;

    eventArg.Source = sender;

    scrollViewer.RaiseEvent(eventArg);

}

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吐个槽：居然还有ScrollView控件不带滚动的。。。那要你有何用？？【摊手