WithDegreeOfParallelism(TSource) Method

Task Parallel System.Threading

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Sets the degree of parallelism to use in a query. Degree of parallelism is the maximum number of concurrently executing tasks that will be used to process the query.

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

Syntax

Visual Basic (Declaration)
Public Shared Function WithDegreeOfParallelism(Of TSource) ( _ source As ParallelQuery(Of TSource), _ degreeOfParallelism As Integer _ ) As ParallelQuery(Of TSource)

C#
public static ParallelQuery<TSource> WithDegreeOfParallelism<TSource>( ParallelQuery<TSource> source, int degreeOfParallelism )

Parameters

source: Type: System.Linq..::.ParallelQuery<(Of <(TSource>)>)
A ParallelQuery on which to set the limit on the degrees of parallelism.

degreeOfParallelism: Type: System..::.Int32
The degree of parallelism for the query.

Type Parameters

TSource: The type of elements of source.

Return Value

ParallelQuery representing the same query as source, with the limit on the degrees of parallelism set.

Exceptions

Exception	Condition
System..::.ArgumentNullException	source is a null reference (Nothing in Visual Basic).
System..::.InvalidOperationException	WithDegreeOfParallelism is used multiple times in the query.
System..::.ArgumentOutOfRangeException	degreeOfParallelism is less than 1 or greater than 63.