Scrolls content to the right by one logical unit.
Assembly: PresentationFramework (in PresentationFramework.dll)
You can override this method in a derived class to change how the stack panel scrolls content to the right. For example, you can scroll content right by two units instead of one.
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.