add Element for outputCacheProfiles for caching (ASP.NET Settings Schema)

Artículo
11/03/2006

Adds an OutputCacheProfile object to the configuration collection. Cache profiles can only be referenced from the @ OutputCache directive for pages. Profiles are not supported on user controls or server controls.

<add name="String" 
     enabled="true|false" 
     duration="number" 
     location="Any|Client|Downstream|Server|None|ServerAndClient" 
     sqlDependency="String" 
     varyByCustom="String" 
     varyByControl="String" 
     varyByHeader="String" 
     varyByParam="String" 
     noStore="true|false" />

Attributes and Elements

The following sections describe attributes, child elements, and parent elements.

Attributes

Attribute	Description
name	Required String attribute. Sets the unique name of the cache profile.
enabled	Optional Boolean attribute. Enables output cache for a profile.
duration	Optional TimeSpan attribute. Sets the amount of time in seconds that a page is stored in the cache.
location	Optional Int32 attribute. Determines where the cached response is allowed to be stored.
sqlDependency	Optional String attribute. Sets the page-level SQL cache dependency.
varyByCustom	Optional String attribute. Sets the string that is used when calling varyByCustom for the page.
varyByControl	Optional String attribute. Sets the ID of the control to be cached and used when calling varyByControl. Can also be set to a semicolon delimited list of IDs.
varyByHeader	Optional String attribute. Names a semicolon delimited set of headers used to vary the cached output.
varyByParam	Optional String attribute. Names a semicolon delimited set of parameters used to vary the cached output.
noStore	Optional Boolean attribute. Sets a value indicating whether the "Cache-Control: no-store" directive is sent in the response for cached pages.

Child Elements

None.

Parent Elements

Element	Description
configuration	The required root element in every configuration file used by the common language runtime and .NET Framework applications.
system.web	Specifies the root element for the ASP.NET configuration settings in a configuration file. Contains configuration elements that configure ASP.NET Web applications and control how the applications behave.
caching	Configures the cache settings for a Web application.
outputCacheSettings	Specifies the output cache settings that can be applied to pages in an ASP.NET application.
outputCacheProfiles	Contains groups of cache settings that can be applied to pages to specify the OutputCache directive.

Remarks

Default Configuration

The following default add element is not explicitly configured in the machine configuration file or in the root Web.config file, but is the default configuration returned by an application in the .NET Framework version 2.0.

<add name = "" 
  enabled = "true" 
  duration = "-1" 
  location = "" 
  sqlDependency = "" 
  varyByCustom = "" 
  varyByControl = "" 
  varyByHeader = "" 
  varyByParam = "" 
  noStore = "false"/>

Example

The following example caches a page on the server only for one minute and stores different versions of the page based on browser type and major version.

<outputCacheSettings>
  <outputCacheProfiles>
    <add name="ServerOnly" 
         duration="60" 
         varyByCustom="browser" 
         location="Server" />
  </outputCacheProfiles>
</outputCacheSettings>

When designing a page that needs to be cached in this way, you will need to add the following directive to the page:

<%@ OutputCache CacheProfile="ServerOnly" %>

For more information see @ OutputCache.

Element Information

Configuration Section Handler	System.Web.Configuration.OutputCacheSettingsSection
Configuration Member	System.Web.Configuration.OutputCacheSettingsSection.OutputCacheProfiles
Configurable Locations	Machine.config Root level Web.config Application level Web.config
Requirements	IIS version 5.0, 5.1 and 6.0 .NET Framework version 2.0 Visual Studio 2005

Compartir a través de

add Element for outputCacheProfiles for caching (ASP.NET Settings Schema)

Attributes and Elements

Attributes

Child Elements

Parent Elements

Remarks

Default Configuration

Example

Element Information

See Also

Tasks

Reference

Concepts

Other Resources

Recursos adicionales