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HashSet<T>.UnionWith Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

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
)

Parameters

Implements

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

Exceptions

Exception Condition
ArgumentNullException

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

Remarks

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

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.