CacheItemPriority Enum


Specifies a priority setting that is used to decide whether to evict a cache entry.

public enum class CacheItemPriority
public enum CacheItemPriority
type CacheItemPriority = 
Public Enum CacheItemPriority


Default 0

Indicates that there is no priority for removing the cache entry.

NotRemovable 1

Indicates that a cache entry should never be removed from the cache.


The only priority that can be set is whether an entry should remain in the cache forever.


Adding an entry to the cache with a priority level of NotRemovable has the potential to overflow the cache with entries that can never be removed. Cache implementations should only set the NotRemovable priority for a cache entry if they provide ways to evict such entries from the cache and to manage the number of cache entries.

Applies to

See also