ConcurrentDictionary<TKey,TValue>.IDictionary.Contains(Object) Method

Definition

Namespace:
System.Collections.Concurrent
Assembly:
System.Collections.Concurrent.dll
Assemblies:
mscorlib.dll, System.Collections.Concurrent.dll
Assembly:
mscorlib.dll
Assembly:
netstandard.dll

Gets a value that indicates the IDictionary<TKey,TValue> contains an element with the specified key.

 virtual bool System.Collections.IDictionary.Contains(System::Object ^ key) = System::Collections::IDictionary::Contains;
bool IDictionary.Contains (object key);
abstract member System.Collections.IDictionary.Contains : obj -> bool
override this.System.Collections.IDictionary.Contains : obj -> bool
Function Contains (key As Object) As Boolean Implements IDictionary.Contains

Parameters

key
Object

The key to locate in the IDictionary<TKey,TValue>.

Returns

Boolean

true if the IDictionary<TKey,TValue> contains an element with the specified key; otherwise, false.

Implements

Contains(Object)

Exceptions

ArgumentNullException

key is null.

Applies to

See also