IsProperSupersetOf Method

SortedSet(Of T).IsProperSupersetOf Method

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

Determines whether a SortedSet(Of T) object is a proper superset of the specified collection.

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

'Declaration
Public Function IsProperSupersetOf ( _
	other As IEnumerable(Of T) _
) As Boolean

Parameters

other
Type: System.Collections.Generic.IEnumerable(Of T)
The collection to compare to the current SortedSet(Of T) object.

Return Value

Type: System.Boolean
true if the SortedSet(Of T) object is a proper superset of other; otherwise, false.

Implements

ISet(Of T).IsProperSupersetOf(IEnumerable(Of T))

ExceptionCondition
ArgumentNullException

other is Nothing.

An empty set is a proper superset of any other collection. Therefore, this method returns true if the collection represented by the other parameter is empty unless the current SortedSet(Of T) collection is also empty.

This method always returns false if Count is less than or equal to the number of elements in other.

If the collection represented by other is a SortedSet(Of T) collection with the same equality comparer as the current SortedSet(Of 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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