Export (0) Print
Expand All

<defaultFtpCachePolicy> Element (Network Settings)

Describes whether FTP caching is active and describes the default caching policy.

<configuration> Element
  <system.Net> Element (Network Settings)
    <requestCaching> Element (Network Settings)
      <defaultFtpCachePolicy> Element (Network Settings)
< defaultFtpCachePolicy
  policyLevel="BypassCache|Default|CacheOnly|CacheIfAvailable|Revalidate|Reload|NoCacheNoStore|Revalidate"
/>

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

Attributes

Attribute

Description

policyLevel

Specifies the FTP caching policy. The default value is Default.

policyLevel Attribute

Value

Description

Default

Returns the cached resource if the resource is fresh, the content length is accurate, and the expiration, modification, and content length attributes are present.

BypassCache

Returns the resource from the server.

CacheOnly

Returns the cached resource if the content length is present and matches the entry size.

CacheIfAvailable

Returns the cached resource if the content length is provided and matches the entry size; otherwise, the resource is downloaded from the server and is returned to the caller.

Revalidate

Returns the cached resource if the timestamp of the cached resource is the same as the timestamp of the resource on the server; otherwise, the resource is downloaded from the server, stored in the cache, and returned to the caller.

Reload

Downloads the resource from the server, stores it in the cache, and returns the resource to the caller.

NoCacheNoStore

If a cached resource exists, it is deleted. The resource is downloaded from the server and is returned to the caller.

Revalidate

Satisfies a request by using the cached copy of the resource if the timestamp is the same as the timestamp of the resource on the server; otherwise, the resource is downloaded from the server, presented to the caller, and stored in the cache.

Child Elements

None.

Parent Elements

Element

Description

requestCaching

Controls the caching mechanism for network requests.

The following code example shows how to specify an FTP caching policy of NoCacheNoStore.

<configuration>
  <system.net>
    <requestCaching>
      <defaultFtpCachePolicy
        Level="NoCacheNoStore">
      </defaultFtpCachePolicy>
    </requestCaching>
  </system.net>
</configuration>
Show:
© 2014 Microsoft