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ICollection<T>.Contains(T) Method

Definition

Determines whether the ICollection<T> contains a specific value.

public:
 bool Contains(T item);
public bool Contains (T item);
abstract member Contains : 'T -> bool
Public Function Contains (item As T) As Boolean

Parameters

item
T

The object to locate in the ICollection<T>.

Returns

true if item is found in the ICollection<T>; otherwise, false.

Remarks

Implementations can vary in how they determine equality of objects; for example, List<T> uses Comparer<T>.Default, whereas Dictionary<TKey,TValue> allows the user to specify the IComparer<T> implementation to use for comparing keys.

Applies to