The CachePolicy property defines the cache parameters for the instance of the UserControl class. The CachePolicy property is read-only; however, you can set the properties of the ControlCachePolicy object that it returns.
The CachePolicy property cannot be set declaratively. It must be set programmatically.
The following code example demonstrates how to use the SupportsCaching property to determine whether the user control can be cached, and if so, sets the Duration property to cache the control for 10 seconds.
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)