HttpCachePolicy Class
.NET Framework 4
Contains methods for setting cache-specific HTTP headers and for controlling the ASP.NET page output cache.
Namespace:
System.Web
Assembly: System.Web (in System.Web.dll)
The HttpCachePolicy type exposes the following members.
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VaryByContentEncodings | Gets the list of Content-Encoding headers that will be used to vary the output cache. |
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VaryByHeaders | Gets the list of all HTTP headers that will be used to vary cache output. |
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VaryByParams | Gets the list of parameters received by an HTTP GET or HTTP POST that affect caching. |
| Name | Description | |
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AddValidationCallback | Registers a validation callback for the current response. |
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AppendCacheExtension | Appends the specified text to the Cache-Control HTTP header. |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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SetAllowResponseInBrowserHistory | Makes the response is available in the client browser History cache, regardless of the HttpCacheability setting made on the server, when the allow parameter is true. |
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SetCacheability(HttpCacheability) | Sets the Cache-Control header to one of the values of HttpCacheability. |
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SetCacheability(HttpCacheability, String) | Sets the Cache-Control header to one of the values of HttpCacheability and appends an extension to the directive. |
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SetETag | Sets the ETag HTTP header to the specified string. |
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SetETagFromFileDependencies | Sets the ETag HTTP header based on the time stamps of the handler's file dependencies. |
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SetExpires | Sets the Expires HTTP header to an absolute date and time. |
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SetLastModified | Sets the Last-Modified HTTP header to the DateTime value supplied. |
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SetLastModifiedFromFileDependencies | Sets the Last-Modified HTTP header based on the time stamps of the handler's file dependencies. |
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SetMaxAge | Sets the Cache-Control: max-age HTTP header based on the specified time span. |
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SetNoServerCaching | Stops all origin-server caching for the current response. |
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SetNoStore | Sets the Cache-Control: no-store HTTP header. |
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SetNoTransforms | Sets the Cache-Control: no-transform HTTP header. |
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SetOmitVaryStar | Specifies whether the response should contain the vary:* header when varying by parameters. |
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SetProxyMaxAge | Sets the Cache-Control: s-maxage HTTP header based on the specified time span. |
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SetRevalidation | Sets the Cache-Control HTTP header to either the must-revalidate or the proxy-revalidate directives based on the supplied enumeration value. |
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SetSlidingExpiration | Sets cache expiration to from absolute to sliding. |
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SetValidUntilExpires | Specifies whether the ASP.NET cache should ignore HTTP Cache-Control headers sent by the client that invalidate the cache. |
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SetVaryByCustom | Specifies a custom text string to vary cached output responses by. |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
For background information about HTTP headers and controlling caching, see RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1, available on the World Wide Web Consortium (W3C) Web site.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
