Gets the margins for this collection. It represents the sum of the InnerMargins, OuterMargins and Borders to which the space required to display the scrollbars is added if needed.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2