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ParallelEnumerable.All<TSource> Method (ParallelQuery<TSource>, Func<TSource, Boolean>)

.NET Framework (current version)
 

Determines in parallel whether all elements of a sequence satisfy a condition.

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

public static bool All<TSource>(
	this ParallelQuery<TSource> source,
	Func<TSource, bool> predicate
)

Parameters

source
Type: System.Linq.ParallelQuery<TSource>

A sequence whose elements to apply the predicate to.

predicate
Type: System.Func<TSource, Boolean>

A function to test each element for a condition.

Return Value

Type: System.Boolean

true if every element of the source sequence passes the test in the specified predicate, or if the sequence is empty; otherwise, false..

Type Parameters

TSource

The type of elements of source.

Exception Condition
OperationCanceledException

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

ArgumentNullException

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

AggregateException

One or more exceptions occurred during the evaluation of the query.

Universal Windows Platform
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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