Aggregate(TSource) Method (ParallelQuery(TSource), Func(TSource, TSource, TSource))

ParallelEnumerable.Aggregate<TSource> Method (ParallelQuery<TSource>, Func<TSource, TSource, TSource>)

 

Applies in parallel an accumulator function over a sequence.

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

public static TSource Aggregate<TSource>(
	this ParallelQuery<TSource> source,
	Func<TSource, TSource, TSource> func
)

Parameters

source
Type: System.Linq.ParallelQuery<TSource>

A sequence to aggregate over.

func
Type: System.Func<TSource, TSource, TSource>

An accumulator function to be invoked on each element.

Return Value

Type: TSource

The final accumulator value.

Type Parameters

TSource

The type of the elements of source.

Exception Condition
OperationCanceledException

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

ArgumentNullException

source or func 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.

Universal Windows Platform
Available since 4.5
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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