HttpCachePolicy.SetSlidingExpiration(Boolean) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Sets cache expiration to from absolute to sliding.
public:
void SetSlidingExpiration(bool slide);
public void SetSlidingExpiration (bool slide);
member this.SetSlidingExpiration : bool -> unit
Public Sub SetSlidingExpiration (slide As Boolean)
Parameters
- slide
- Boolean
true
or false
.
Examples
The following code example demonstrates how to set sliding expiration to true
.
Response.Cache.SetSlidingExpiration(true);
Response.Cache.SetSlidingExpiration(True)
Remarks
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 Versions and Dependencies.
Applies to
.NET
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