ParallelEnumerable.Last(Of TSource) Method (ParallelQuery(Of TSource))

.NET Framework (current version)

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Returns the last element of a parallel sequence.

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

Syntax

C++

<ExtensionAttribute>
Public Shared Function Last(Of TSource) (
	source As ParallelQuery(Of TSource)
) As TSource

Parameters

source: Type: System.Linq.ParallelQuery(Of TSource)
The sequence to return the last element from.

Return Value

Type: TSource

The value at the last position in the source sequence.

Type Parameters

TSource: The type of the elements of source.

Exceptions

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.
InvalidOperationException	source contains no elements.

Remarks

If the query is not ordered, then the last element is non-deterministic. For more information, see Order Preservation in PLINQ.

Version Information

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