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

.NET Framework (current version)
Note: This API is now obsolete.

This SequenceEqual overload should never be called. This method is marked as obsolete and always throws NotSupportedException when called.

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

generic<typename TSource>
[ObsoleteAttribute("The second data source of a binary operator must be of type System.Linq.ParallelQuery<T> rather than System.Collections.Generic.IEnumerable<T>. To fix this problem, use the AsParallel() extension method to convert the right data source to System.Linq.ParallelQuery<T>.")]
static bool SequenceEqual(
	ParallelQuery<TSource>^ first,
	IEnumerable<TSource>^ second,
	IEqualityComparer<TSource>^ comparer


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

This parameter is not used.

Type: System.Collections.Generic::IEnumerable<TSource>^

This parameter is not used.

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

This parameter is not used.

Return Value

Type: System::Boolean

This overload always throws a NotSupportedException.

Type Parameters


This type parameter is not used.

Exception Condition

Thrown every time this method is called.

This overload exists to disallow usage of SequenceEqual with a left data source of type ParallelQuery<TSource> and a right data source of type IEnumerable<T>. Otherwise, the SequenceEqual operator would appear to be binding to the parallel implementation, but would in reality bind to sequential implementation.

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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