Satisfies a request by using the cached copy of the resource if the timestamp is the same as the timestamp of the resource on the server; otherwise, the resource is downloaded from the server, presented to the caller, and stored in the cache.
Syntax
RequestCacheLevel Revalidate
Remarks
A copy of a resource is only added to the cache if the response stream for the resource is retrieved and read to the end of the stream. So subsequent requests for the same resource would use a cached copy if the timestamp for the cached resource is the same as the timestamp of the resource on the server.
Requirements
Namespace: System.Net.Cache
Assembly: System (in System.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0
Assembly: System (in System.dll)
Assembly Versions: 2.0.0.0, 4.0.0.0
Since: .NET 2.0