ConcurrentDictionary<TKey,TValue>.ContainsKey(TKey) Method
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Determines whether the ConcurrentDictionary<TKey,TValue> contains the specified key.
public:
virtual bool ContainsKey(TKey key);
C#
public bool ContainsKey(TKey key);
abstract member ContainsKey : 'Key -> bool
override this.ContainsKey : 'Key -> bool
Public Function ContainsKey (key As TKey) As Boolean
- key
- TKey
The key to locate in the ConcurrentDictionary<TKey,TValue>.
true
if the ConcurrentDictionary<TKey,TValue> contains an element with the specified key; otherwise, false
.
key
is null
.
Product | Versions |
---|---|
.NET | Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9 |
.NET Framework | 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 |
.NET Standard | 1.1, 1.2, 1.3, 1.4, 1.6, 2.0, 2.1 |
UWP | 10.0 |
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