ParallelEnumerable::LongCount<TSource> Method (ParallelQuery<TSource>^)

.NET Framework (current version)

Returns an Int64 that represents the total number of elements in a parallel sequence.

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

Syntax

public:
generic<typename TSource>
[ExtensionAttribute]
static long long LongCount(
	ParallelQuery<TSource>^ source
)

Parameters

source: Type: System.Linq::ParallelQuery<TSource>^
A sequence that contains elements to be counted.

Return Value

Type: System::Int64

The number of elements in the input sequence.

Type Parameters

TSource: The type of the elements of source.

Exceptions

Exception	Condition
OperationCanceledException	The query was canceled with the token passed in through WithCancellation.
ArgumentNullException	source is a null reference (Nothing in Visual Basic).
AggregateException	The number of elements in source is larger than MaxValue. -or- One or more exceptions occurred during the evaluation of the query.
OverflowException	The computed result is greater than MaxValue.

Version Information

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