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ParallelEnumerable.AsParallel(Of TSource) Method (IEnumerable(Of TSource))

Enables parallelization of a query.

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

'Declaration
<ExtensionAttribute> _
Public Shared Function AsParallel(Of TSource) ( _
	source As IEnumerable(Of TSource) _
) As ParallelQuery(Of TSource)

Type Parameters

TSource

The type of elements of source.

Parameters

source
Type: System.Collections.Generic.IEnumerable(Of TSource)

An IEnumerable(Of T) to convert to a ParallelQuery(Of TSource).

Return Value

Type: System.Linq.ParallelQuery(Of TSource)
The source as a ParallelQuery(Of TSource) to bind to ParallelEnumerable extension methods.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IEnumerable(Of TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

ExceptionCondition
ArgumentNullException

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

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1
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