HttpCacheVaryByParams Class
Provides a type-safe way to set the VaryByParams property.
Assembly: System.Web (in System.Web.dll)
The HttpCacheVaryByParams type exposes the following members.
| Name | Description | |
|---|---|---|
![]() | HttpCacheVaryByParams | Initializes a new instance of the HttpCacheVaryByParams class. |
| Name | Description | |
|---|---|---|
![]() | IgnoreParams | Gets or sets a value indicating whether an HTTP response varies by Get or Post parameters. |
![]() | Item | Gets or sets a value indicating whether the cache varies according to the specified HTTP request parameter. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
![]() | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
![]() | GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
![]() | GetType | Gets the Type of the current instance. (Inherited from Object.) |
![]() | MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
![]() | ToString | Returns a string that represents the current object. (Inherited from Object.) |
The VaryByParams property identifies which HTTP Get or Post parameters ASP.NET uses to uniquely identify a variation of the response when there are multiple cached responses for a resource. This is useful when a response depends on a set of client inputs, such as headers or parameters.
The HttpCacheVaryByParams is not directly related to HTTP cache-control headers, but helps ensure that a client or proxy varies by the specified parameters. For more information about VaryByParams, see RFC 2616: Hypertext Transfer Protocol -- HTTP/1.1, available on the World Wide Web Consortium (W3C) Web site. See section 14, "Header Field Definitions", for complete details.
The following code example demonstrates how the HttpCacheVaryByParams object is accessed from the HttpCachePolicy object associated with an HttpResponse.
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.


