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

Reference

Definition

Namespace:: System.Collections.Generic

Assemblies:: System.dll, System.Runtime.dll

Assemblies:: netstandard.dll, System.Runtime.dll

Assembly:: System.Runtime.dll

Assembly:: System.dll

Assembly:: netstandard.dll

Important

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Modifies the current set so that it contains all elements that are present in the current set, in the specified collection, or in both.

public:
 void UnionWith(System::Collections::Generic::IEnumerable<T> ^ other);

public void UnionWith(System.Collections.Generic.IEnumerable<T> other);

abstract member UnionWith : seq<'T> -> unit

Public Sub UnionWith (other As IEnumerable(Of T))

Parameters

other: IEnumerable<T>

The collection to compare to the current set.

Exceptions

ArgumentNullException

other is null.

Remarks

Any duplicate elements in other are ignored.

Applies to

Product	Versions
.NET	Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 2.0, 2.1
UWP	10.0

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