在ListView上用鼠标激活水平滚动 [英] Activate horizontal scrolling with mouse on ListView

问题描述

我有一个自定义的水平ListView，在它的模板(使用Blend创建)中带有自定义的ScrollViewer.当使用鼠标滚轮时，我希望它水平滚动. 我该怎么办?

I've got a custom horizontal ListView with custom ScrollViewer inside it's template (created with Blend). I want it to scroll horizontally when using mouse scrolling wheel. How can I do that?

推荐答案

如果实现IScrollInfo，则可以覆盖MouseWheelUp来执行MouseWheelLeft 以相同的方式向下\右移

if you implement IScrollInfo you can override the MouseWheelUp to do MouseWheelLeft and down\right the in same way

编辑(简单得多):

添加到您的ScrollViewer PreviewMouseWheel

add to your ScrollViewer PreviewMouseWheel

private void ScrollViewer_PreviewMouseWheel(object sender, MouseWheelEventArgs e)
        {
            if (e.Delta < 0) // wheel down
            {
                if (myScrollViewer.HorizontalOffset + e.Delta > 0)
                {
                    myScrollViewer.ScrollToHorizontalOffset(myScrollViewer.HorizontalOffset + e.Delta);  
                }
                else
                {
                    myScrollViewer.ScrollToLeftEnd();
                }
            }
            else //wheel up
            {
                if (myScrollViewer.ExtentWidth > myScrollViewer.HorizontalOffset + e.Delta)
                {
                    myScrollViewer.ScrollToHorizontalOffset(myScrollViewer.HorizontalOffset + e.Delta);  
                }
                else
                {
                    myScrollViewer.ScrollToRightEnd();
                }
            }

        }

xaml:

<ScrollViewer x:Name="myScrollViewer" HorizontalScrollBarVisibility="Visible" Mouse.PreviewMouseWheel="ScrollViewer_PreviewMouseWheel"> 

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