ScrollViewer.IsHorizontalRailEnabled=“False” or ScrollViewer.IsHorizontalRailEnabled=“True” has no effect

问题

I am learning xaml and I am at Gridview. I have noticed that when I type in:

<GridView x:Name="Grid1" Grid.Row="1" SelectionMode="None"  Padding="120,0,0,0" RenderTransformOrigin="0.5,0.5" d:LayoutRounding="Auto"
              ScrollViewer.IsHorizontalRailEnabled="False">

or

<GridView x:Name="Grid1" Grid.Row="1" SelectionMode="None"  Padding="120,0,0,0" RenderTransformOrigin="0.5,0.5" d:LayoutRounding="Auto"
              ScrollViewer.IsHorizontalRailEnabled="True">

There is no difference when I run the app. I would like to know if "ScrollViewer.IsHorizontalRailEnabled" really does anything, or am I doing something wrong. Also same for "ScrollViewer.IsVerticalRailEnabled"

I have been to MSDN, the explanation there doesn't help. Thanks.

回答1:

To enable horizontal scroll, you need to do this

<GridView x:Name="Grid1" Grid.Row="1" SelectionMode="None"  Padding="120,0,0,0" RenderTransformOrigin="0.5,0.5" d:LayoutRounding="Auto">
<ScrollViewer HorizontalScrollBarVisibility="Auto" HorizontalScrollMode="Enabled">

<!-- Inside XAML code here -->

</ScrollViewer>
</GridView>

To enable vertical scroll, you need to do this

<GridView x:Name="Grid1" Grid.Row="1" SelectionMode="None"  Padding="120,0,0,0" RenderTransformOrigin="0.5,0.5" d:LayoutRounding="Auto">
<ScrollViewer VerticalScrollBarVisibility="Auto" VerticalScrollMode="Enabled">

<!-- Inside XAML code here -->

</ScrollViewer>
</GridView>

Hope this helps!

来源：https://stackoverflow.com/questions/31358080/scrollviewer-ishorizontalrailenabled-false-or-scrollviewer-ishorizontalrailena