ParallelEnumerable.Where(Of TSource) Method (ParallelQuery(Of TSource), Func(Of TSource, Int32, Boolean))
.NET Framework (current version)
Filters in parallel a sequence of values based on a predicate. Each element's index is used in the logic of the predicate function.
Assembly: System.Core (in System.Core.dll)
<ExtensionAttribute> Public Shared Function Where(Of TSource) ( source As ParallelQuery(Of TSource), predicate As Func(Of TSource, Integer, Boolean) ) As ParallelQuery(Of TSource)
Parameters
- source
-
Type:
System.Linq.ParallelQuery(Of TSource)
A sequence to filter.
- predicate
-
Type:
System.Func(Of TSource, Int32, Boolean)
A function to test each element for a condition.
Return Value
Type: System.Linq.ParallelQuery(Of TSource)A sequence that contains elements from the input sequence that satisfy the condition.
Type Parameters
- TSource
The type of the elements of source.
| Exception | Condition |
|---|---|
| ArgumentNullException | source or predicate is a null reference (Nothing in Visual Basic). |
| OperationCanceledException | The query was canceled with the token passed in through WithCancellation. |
| OverflowException | More than MaxValue elements are enumerated by the query. |
| AggregateException | One or more exceptions occurred during the evaluation of the query. |
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
Available since 8
.NET Framework
Available since 4.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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