Note: This property should only be enabled when the underlying DataSource does not have an efficient implementation of the IndexOf method, such as by performing a linear search. By enabling this property, all the items in the underlying DataSource will be accessed in order to provide a more efficient caching mechanism for when the grid receives a Reset notification.
Target Platforms: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Server 2012, 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