SetEquals Method

HashSet<T>.SetEquals Method

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

Determines whether a HashSet<T> object and the specified collection contain the same elements.

Namespace:  System.Collections.Generic
Assembly:  System.Core (in System.Core.dll)

public bool SetEquals(
	IEnumerable<T> other
)

Parameters

other
Type: System.Collections.Generic.IEnumerable<T>
The collection to compare to the current HashSet<T> object.

Return Value

Type: System.Boolean
true if the HashSet<T> object is equal to other; otherwise, false.

Implements

ISet<T>.SetEquals(IEnumerable<T>)

ExceptionCondition
ArgumentNullException

other is null.

The SetEquals method ignores duplicate entries and the order of elements in the other parameter.

If the collection represented by other is a HashSet<T> collection with the same equality comparer as the current HashSet<T> object, this method is an O(n) operation. Otherwise, this method is an O(n + m) operation, where n is the number of elements in other and m is Count.

Windows Phone OS

Supported in: 8.1, 8.0

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