ParallelEnumerable.Count Method
Definition
Returns the number of elements in a parallel sequence.
Overloads
Count<TSource>(ParallelQuery<TSource>) |
Returns the number of elements in a parallel sequence. |
Count<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>) |
Returns a number that represents how many elements in the specified parallel sequence satisfy a condition. |
Count<TSource>(ParallelQuery<TSource>)
Returns the number of elements in a parallel sequence.
public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
static int Count(System::Linq::ParallelQuery<TSource> ^ source);
public static int Count<TSource> (this System.Linq.ParallelQuery<TSource> source);
static member Count : System.Linq.ParallelQuery<'Source> -> int
<Extension()>
Public Function Count(Of TSource) (source As ParallelQuery(Of TSource)) As Integer
Type Parameters
- TSource
The type of the elements of source
.
Parameters
- source
- 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. (In this case the InnerException is OverflowException) -or- One or more exceptions occurred during the evaluation of the query.
See also
Count<TSource>(ParallelQuery<TSource>, Func<TSource,Boolean>)
Returns a number that represents how many elements in the specified parallel sequence satisfy a condition.
public:
generic <typename TSource>
[System::Runtime::CompilerServices::Extension]
static int Count(System::Linq::ParallelQuery<TSource> ^ source, Func<TSource, bool> ^ predicate);
public static int Count<TSource> (this System.Linq.ParallelQuery<TSource> source, Func<TSource,bool> predicate);
static member Count : System.Linq.ParallelQuery<'Source> * Func<'Source, bool> -> int
<Extension()>
Public Function Count(Of TSource) (source As ParallelQuery(Of TSource), predicate As Func(Of TSource, Boolean)) As Integer
Type Parameters
- TSource
The type of the elements of source
.
Parameters
- source
- ParallelQuery<TSource>
A sequence that contains elements to be counted.
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. (In this case the InnerException is OverflowException) -or- One or more exceptions occurred during the evaluation of the query.