When you set the Filter, SortDescriptions, or GroupDescriptions property; a refresh occurs. You do not have to call the Refresh method immediately after you set one of those properties. For information about how to delay automatic refresh, see DeferRefresh.
Derived classes use the protected RefreshOverride method to override the behavior of this method.
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)