Scrolls content upward by one page.
Assembly: PresentationFramework (in PresentationFramework.dll)
You can override in a derived class to change how the stack panel responds to the page up action.
If you require physical scrolling instead of logical scrolling, wrap the VirtualizingStackPanel in a ScrollViewer and set its CanContentScroll property to false. In this case, the ScrollViewer provides scrolling, and virtualization is disabled.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.