ParallelEnumerable.All<TSource> Method

Definition

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

C#
public static bool All<TSource>(this System.Linq.ParallelQuery<TSource> source, Func<TSource,bool> predicate);

Type Parameters

TSource

The type of elements of source.

Parameters

source
ParallelQuery<TSource>

A sequence whose elements to apply the predicate to.

predicate
Func<TSource,Boolean>

A function to test each element for a condition.

Returns

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

Exceptions

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

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

Applies to

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9
.NET Framework 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard 2.0, 2.1
UWP 10.0

See also