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ParallelEnumerable.AsParallel Method (IEnumerable)

Enables parallelization of a query.

Namespace:  System.Linq
Assemblies:   System.Linq.Parallel (in System.Linq.Parallel.dll)
  System.Core (in System.Core.dll)

public static ParallelQuery AsParallel(
	this IEnumerable source
)

Parameters

source
Type: System.Collections.IEnumerable

An IEnumerable<T> to convert to a ParallelQuery.

Return Value

Type: System.Linq.ParallelQuery
The source as a ParallelQuery 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. 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).

The Cast<TResult> operator can be used to convert a ParallelQuery to a ParallelQuery(T).

.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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