ObjectCache.NoSlidingExpiration Field

Definition

Indicates that a cache entry has no sliding expiration time.

C#
public static readonly TimeSpan NoSlidingExpiration;

Field Value

Remarks

Expiration that is based on duration or a defined window of time is also referred to as sliding expiration. Normally, a cache implementation that evicts items that are based on sliding expiration will remove an item that has not been accessed in the specified window of time.

A cache entry that is inserted into the cache with the NoSlidingExpiration field value set as the expiration value should never be evicted because of non-activity in a sliding time window. However, a cache item can be evicted if it has an absolute expiration, or if some other eviction event occurs, such a change monitor or memory pressure.

Applies to

Product Versions
.NET 8 (package-provided), 9 (package-provided)
.NET Framework 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7 (package-provided), 4.7, 4.7.1 (package-provided), 4.7.1, 4.7.2 (package-provided), 4.7.2, 4.8 (package-provided), 4.8, 4.8.1
.NET Standard 2.0 (package-provided)