ObjectCache.Contains(String, String) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
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
true
if the cache contains a cache entry with the same key value as key
; otherwise, false
.
Applies to
Commentaires
https://aka.ms/ContentUserFeedback.
Bientôt disponible : Tout au long de 2024, nous allons supprimer progressivement GitHub Issues comme mécanisme de commentaires pour le contenu et le remplacer par un nouveau système de commentaires. Pour plus d’informations, consultezEnvoyer et afficher des commentaires pour