ScrollViewer ScrollBar visibility

I'm working with WPF ScrollViewer.

<ScrollViewer Name="uiPageScrollViewer" 
              ScrollViewerHorizontalScrollBarVisibility="Auto">
...
</ScrollViewer>

I'm adding elements to ScrollViewer and HorizontalScrollBar is showing in the UI.

When I try to get uiPageScrollViewer.HorizontalScrollBarVisibility in code behind it returns Auto.

How can I get Visibility? When HorizontalScrollBar is showing in UI than it should return Visible else does not matter.

Solution