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ParallelEnumerable.Distinct<TSource> Method (ParallelQuery<TSource>)

.NET Framework (current version)

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Returns distinct elements from a parallel sequence by using the default equality comparer to compare values.

Namespace:   System.Linq
Assembly:  System.Core (in System.Core.dll)

public static ParallelQuery<TSource> Distinct<TSource>(
	this ParallelQuery<TSource> source


Type: System.Linq.ParallelQuery<TSource>

The sequence to remove duplicate elements from.

Return Value

Type: System.Linq.ParallelQuery<TSource>

A sequence that contains distinct elements from the source sequence.

Type Parameters


The type of the elements of source.

Exception Condition

source is a null reference (Nothing in Visual Basic).


The query was canceled with the token passed in through WithCancellation.


One or more exceptions occurred during the evaluation of the query.

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