CacheInvalidate Method
The CacheInvalidate method of the SPWebPartCollection class invalidates the cache for a Web Part, including the output and Web Part caches.
Parameters
storageKey A GUID that identifies the Web Part.
storage A Microsoft.SharePoint.WebPartPages.Storage value that specifies whether the storage for the Web Part is personal or shared.
Requirements
Platforms: Microsoft Windows Server 2003
Security: Code Access Security