HttpCachePolicy.VaryByHeaders Property (System.Web)

.NET Framework Class Library

HttpCachePolicy..::.VaryByHeaders Property

Gets the list of all HTTP headers that will be used to vary cache output.

Namespace: System.Web
Assembly: System.Web (in System.Web.dll)

Syntax

Visual Basic (Declaration)

Public ReadOnly Property VaryByHeaders As HttpCacheVaryByHeaders

Visual Basic (Usage)

Dim instance As HttpCachePolicy
Dim value As HttpCacheVaryByHeaders

value = instance.VaryByHeaders

public HttpCacheVaryByHeaders VaryByHeaders { get; }

Visual C++

public:
property HttpCacheVaryByHeaders^ VaryByHeaders {
    HttpCacheVaryByHeaders^ get ();
}

JScript

public function get VaryByHeaders () : HttpCacheVaryByHeaders

Property Value

Type: System.Web..::.HttpCacheVaryByHeaders
An HttpCacheVaryByHeaders that specifies which HTTP headers are used to select the cached response.

Remarks

When a cached item has several vary headers, a separate version of the requested document is available from the cache for each HTTP header type.

VaryByHeaders is introduced in the .NET Framework version 3.5. For more information, see .NET Framework 3.5 Architecture.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

Reference

HttpCachePolicy Class

HttpCachePolicy Members

System.Web Namespace

SetOmitVaryStar

HttpCacheVaryByHeaders