ParallelEnumerable::Contains<TSource> Method (ParallelQuery<TSource>^, TSource, IEqualityComparer<TSource>^)

.NET Framework (current version)
 

Determines in parallel whether a sequence contains a specified element by using a specified IEqualityComparer<T>.

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

public:
generic<typename TSource>
[ExtensionAttribute]
static bool Contains(
	ParallelQuery<TSource>^ source,
	TSource value,
	IEqualityComparer<TSource>^ comparer
)

Parameters

source
Type: System.Linq::ParallelQuery<TSource>^

A sequence in which to locate a value.

value
Type: TSource

The value to locate in the sequence.

comparer
Type: System.Collections.Generic::IEqualityComparer<TSource>^

An equality comparer to compare values.

Return Value

Type: System::Boolean

true if the source sequence contains an element that has the specified value; otherwise, false.

Type Parameters

TSource

The type of elements of source.

Exception Condition
OperationCanceledException

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

ArgumentNullException

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

AggregateException

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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