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ISet(Of T).IsProperSupersetOf Method

Determines whether the current set is a proper (strict) superset of a specified collection.

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

'Declaration
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 set.

Return Value

Type: System.Boolean
true if the current set is a proper superset of other; otherwise, false.

ExceptionCondition
ArgumentNullException

other is Nothing.

If the current set is a proper superset of other, the current set must have at least one element that other does not have.

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 set is also empty.

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

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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