ParallelEnumerable.LongCount ParallelEnumerable.LongCount ParallelEnumerable.LongCount ParallelEnumerable.LongCount Method

Definition

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

Overloads

LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>)

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

LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>)

Returns an Int64 that represents how many elements in a parallel sequence satisfy a condition.

LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>) LongCount<TSource>(ParallelQuery<TSource>)

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

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static long LongCount(System::Linq::ParallelQuery<TSource> ^ source);
public static long LongCount<TSource> (this System.Linq.ParallelQuery<TSource> source);
static member LongCount : System.Linq.ParallelQuery<'Source> -> int64
<Extension()>
Public Function LongCount(Of TSource) (source As ParallelQuery(Of TSource)) As Long

Type Parameters

TSource

The type of the elements of source.

Parameters

source
ParallelQuery<TSource> ParallelQuery<TSource> ParallelQuery<TSource> ParallelQuery<TSource>

A sequence that contains elements to be counted.

Returns

The number of elements in the input sequence.

Exceptions

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

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

The number of elements in source is larger than MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

See also

LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) LongCount<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>)

Returns an Int64 that represents how many elements in a parallel sequence satisfy a condition.

public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
 static long LongCount(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, bool> ^ predicate);
public static long LongCount<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,bool> predicate);
static member LongCount : System.Linq.ParallelQuery<'Source> * Func<'Source, bool> -> int64
<Extension()>
Public Function LongCount(Of TSource) (source As ParallelQuery(Of TSource), predicate As Func(Of TSource, Boolean)) As Long

Type Parameters

TSource

The type of the elements of source.

Parameters

source
ParallelQuery<TSource> ParallelQuery<TSource> ParallelQuery<TSource> ParallelQuery<TSource>

A sequence that contains elements to be counted.

predicate
Func<TSource,Boolean>

A function to test each element for a condition.

Returns

A number that represents how many elements in the sequence satisfy the condition in the predicate function.

Exceptions

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

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

The number of elements in source is larger than MaxValue. -or- One or more exceptions occurred during the evaluation of the query.

See also

Applies to