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ILookup<TKey,TElement>.Contains(TKey) Method

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Definition

Namespace:
System.Linq
Assemblies:
System.Core.dll, System.Linq.dll
Assemblies:
netstandard.dll, System.Linq.dll
Assembly:
System.Linq.dll
Assembly:
System.Core.dll
Assembly:
netstandard.dll

Determines whether a specified key exists in the ILookup<TKey,TElement>.

public:
 bool Contains(TKey key);
public bool Contains(TKey key);
abstract member Contains : 'Key -> bool
Public Function Contains (key As TKey) As Boolean

Parameters

key
TKey

The key to search for in the ILookup<TKey,TElement>.

Returns

Boolean

true if key is in the ILookup<TKey,TElement>; otherwise, false.

Applies to