public virtual bool ContainsKey(TKey key)
Public Overridable Function ContainsKey( _ByVal key As TKey _) As Boolean
public:virtual bool ContainsKey(TKey^ key)
key
The key to locate in the IDictionary.
true if the IDictionary contains an element with the key; otherwise, false.
Exceptions
| Exception | Description |
|---|---|
| System.ArgumentNullException | key is null. |
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