ParallelEnumerable.LongCount<TSource> Method (ParallelQuery<TSource>)
Returns an Int64 that represents the total number of elements in a parallel sequence.
Assembly: System.Core (in System.Core.dll)
A sequence that contains elements to be counted.
Return ValueType: System.Int64
The number of elements in the input sequence.
The type of the elements of source.
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.
The computed result is greater than MaxValue.
Available since 4.5
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Available since 8.1