AsEnumerable(TSource) Method

ParallelEnumerable.AsEnumerable<TSource> Method

Converts a ParallelQuery<TSource> into an IEnumerable<T> to force sequential evaluation of the query.

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

public static IEnumerable<TSource> AsEnumerable<TSource>(
	this ParallelQuery<TSource> source

Type Parameters


The type of the elements of source.


Type: System.Linq.ParallelQuery<TSource>
The sequence to cast as IEnumerable<T>.

Return Value

Type: System.Collections.Generic.IEnumerable<TSource>
The input sequence typed as IEnumerable<T>.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ParallelQuery<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).


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

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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