ObjectCache.Contains(String, String) Method

Definition

Namespace:

System.Runtime.Caching

Assembly:

System.Runtime.Caching.dll

Package:

System.Runtime.Caching v9.0.0

Source:

ObjectCache.cs

When overridden in a derived class, checks whether the cache entry already exists in the cache.

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

abstract member Contains : string * string -> bool

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

Parameters

key

String

A unique identifier for the cache entry.

regionName

String

Optional. A named region in the cache where the cache can be found, if regions are implemented. The default value for the optional parameter is null.

Returns

Boolean

true if the cache contains a cache entry with the same key value as key; otherwise, false.