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HttpCachePolicy::SetSlidingExpiration Method

Sets cache expiration to from absolute to sliding.

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

public:
void SetSlidingExpiration(
	bool slide
)

Parameters

slide
Type: System::Boolean

true or false.

When cache expiration is set to sliding, the Cache-Control HTTP header will be renewed with each response. This expiration mode is identical to the IIS configuration option to add an expiration header to all output set relative to the current time.

If you explicitly set sliding expiration to off (false), that setting will be preserved and any attempts to enable sliding expiration will silently fail. This method does not directly map to an HTTP header. It is used by subsequent modules or worker requests to set origin-server cache policy.

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

The following code example demonstrates how to set sliding expiration to true.

No code example is currently available or this language may not be supported.

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
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