ParallelEnumerable.All(Of TSource) Method (ParallelQuery(Of TSource), Func(Of 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)

<ExtensionAttribute>
Public Shared Function All(Of TSource) (
	source As ParallelQuery(Of TSource),
	predicate As Func(Of TSource, Boolean)
) As Boolean

Parameters

source
Type: System.Linq.ParallelQuery(Of TSource)

A sequence whose elements to apply the predicate to.

predicate
Type: System.Func(Of 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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