When true, certain calculations will be deferred if they are not visible. This is mainly used for iterated calculations, such as XamDataGrid cells. If possible, cells that are in view will be calculated before cells that are out of view.
Note that in some cases, deferring calculations is not possible. For example, if there is a Summary on a calculated field, then all the values in the field must be calculated before the summary can be calculated.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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