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HttpResponse.CacheControl Property

Gets or sets the Cache-Control HTTP header that matches one of the HttpCacheability enumeration values.

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

public string CacheControl { get; set; }

Property Value

Type: System.String
A string representation of the HttpCacheability enumeration value.


The string value set does not match one of the HttpCacheability enumeration values.

The values for Private, Public, and No-Cache are strings and must be enclosed in quotation marks (" "). If the CacheControl property is set to a value that does not match one of the HttpCacheability enumeration values, then an ArgumentException is thrown. If the CacheControl property is not set, the cacheability of the response is set to NoCache.

The CacheControl, Expires, and ExpiresAbsolute properties have been deprecated. Instead, the methods of the HttpCachePolicy class are available through the Cache intrinsic object to control the Internet Information Services (IIS) output cache and client caches.

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.

.NET Framework

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