HttpCacheAgeControl Enum

Reference

Definition

Namespace:: System.Net.Cache

Assembly:: System.Net.Requests.dll

Assembly:: System.dll

Assembly:: netstandard.dll

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.

Specifies the meaning of time values that control caching behavior for resources obtained using HttpWebRequest objects.

public enum class HttpCacheAgeControl

public enum HttpCacheAgeControl

type HttpCacheAgeControl =

Public Enum HttpCacheAgeControl

Inheritance: Object

ValueType

Enum
HttpCacheAgeControl

Fields

Name	Value	Description
None	0	For internal use only. The Framework will throw an ArgumentException if you try to use this member.
MinFresh	1	Content can be taken from the cache if the time remaining before expiration is greater than or equal to the time specified with this value.
MaxAge	2	Content can be taken from the cache until it is older than the age specified with this value.
MaxAgeAndMinFresh	3	MaxAge and MinFresh.
MaxStale	4	Content can be taken from the cache after it has expired, until the time specified with this value elapses.
MaxAgeAndMaxStale	6	MaxAge and MaxStale.

Examples

The following code example creates a policy based on MaxAgeAndMinFresh.

static HttpRequestCachePolicy^ CreateFreshAndAgePolicy( TimeSpan freshMinimum, TimeSpan ageMaximum )
{
   HttpRequestCachePolicy^ policy = gcnew HttpRequestCachePolicy( HttpCacheAgeControl::MaxAgeAndMinFresh,
       ageMaximum, freshMinimum );
   Console::WriteLine( policy );
   return policy;
}

public static HttpRequestCachePolicy CreateFreshAndAgePolicy(TimeSpan freshMinimum, TimeSpan ageMaximum)
{
    HttpRequestCachePolicy policy =
        new HttpRequestCachePolicy(HttpCacheAgeControl.MaxAgeAndMinFresh, ageMaximum, freshMinimum);
    Console.WriteLine(policy.ToString());
    return policy;
}

Remarks

This enumeration is used by members of the HttpRequestCachePolicy class to configure the time values for cache policies.

Applies to

Поділитися через