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CacheItemPolicy.Priority Property

Gets or sets a priority setting that is used to determine whether to evict a cache entry.

Namespace:  System.Runtime.Caching
Assembly:  System.Runtime.Caching (in System.Runtime.Caching.dll)

public CacheItemPriority Priority { get; set; }

Property Value

Type: System.Runtime.Caching.CacheItemPriority
One of the enumeration values that indicates the priority for eviction. The default priority value is Default, which means no priority.

In ASP.NET, the priority enumeration only has two possible priorities: Default (which means no priority), and NotRemovable (which means the entry cannot be removed). Therefore, the only priority that can be set is whether a cache entry should remain in the cache forever.

Important noteImportant

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

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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