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HashSet<T>::UnionWith Method (IEnumerable<T>^)

 

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

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

public:
virtual void UnionWith(
	IEnumerable<T>^ other
) sealed

Parameters

other
Type: System.Collections.Generic::IEnumerable<T>^

The collection to compare to the current HashSet<T> object.

Exception Condition
ArgumentNullException

other is null.

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

The following example demonstrates how to merge two disparate sets. This example creates two HashSet<T> objects, and populates them with even and odd numbers, respectively. A third HashSet<T> object is created from the set that contains the even numbers. The example then calls the UnionWith method, which adds the odd number set to the third set.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 4.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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