Gets a list of additional HTTP headers by which caching is varied for the Web page to which this derived page adapter is attached.
Syntax
Value
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Remarks
Entities on the Web that cache Web pages cache multiple versions, based on the HTTP headers and other factors. For example, a version for each language in which a page is generated is typically cached, based on the Accept-Language HTTP header.
For specific browsers, it might be necessary to vary caching by HTTP headers in addition to the headers that control target-independent caching. For example, it might be necessary to cache different versions of a page for different screen sizes.
The header names returned by the PageAdapter.CacheVaryByHeaders property are added to the list of headers on the Vary HTTP header sent to the client browser.
Requirements
Assembly: System.Web (in System.Web.dll)
Assembly Versions: 2.0.0.0
Since: .NET 2.0