HashSet<T>.IsProperSupersetOf Method
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Determines whether a HashSet<T> object is a proper superset of the specified collection.
Namespace: System.Collections.Generic
Assembly: System.Core (in System.Core.dll)
Syntax
'Declaration
Public Function IsProperSupersetOf ( _
other As IEnumerable(Of T) _
) As Boolean
public bool IsProperSupersetOf(
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 a proper superset of other; otherwise, false.
Implements
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | other is nulla null reference (Nothing in Visual Basic). |
Remarks
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 HashSet<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 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.
Version Information
Silverlight
Supported in: 5, 4
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.