MemoryCache.Contains(String, String) Method

Reference

Definition

Namespace:: System.Runtime.Caching

Assembly:: System.Runtime.Caching.dll

Package:: System.Runtime.Caching v9.0.0

Source:: MemoryCache.cs

Source:: MemoryCache.cs

Source:: MemoryCache.cs

Important

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Determines whether a cache entry exists in the cache.

public override bool Contains (string key, string regionName = default);

override this.Contains : string * string -> bool

Public Overrides Function Contains (key As String, Optional regionName As String = Nothing) As Boolean

Parameters

key: String

A unique identifier for the cache entry to search for.

regionName: String

A named region in the cache to which a cache entry was added. Do not pass a value for this parameter. This parameter is null by default, because the MemoryCache class does not implement regions.

Returns

Boolean

true if the cache contains a cache entry whose key matches key; otherwise, false.

Exceptions

ArgumentNullException

key is null.

NotSupportedException

regionName is not null.

Applies to

Jaa