HashSet<T>.UnionWith Method

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Modifies the current HashSet<T> object to contain all elements that are present in both itself and in the specified collection.

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

Syntax

'Declaration
Public Sub UnionWith ( _
    other As IEnumerable(Of T) _
)

public void UnionWith(
    IEnumerable<T> other
)

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

Exception	Condition
ArgumentNullException	other is nulla null reference (Nothing in Visual Basic).

This method is an O(n) operation, where n is the number of elements in the other parameter.

Supported in: 5, 4

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.