The CacheKeyContext property enables you to manually create a cache key for the XmlDataSource control. This is required only if you are assigning an object that contains XML or XSLT data to the control instead of specifying a file that contains the data. When you assign data to the control, the data is not used to generate the cache key. Instead, you must manually generate a unique cache key if you plan to update the data object.
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)