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ParallelEnumerable.WithMergeOptions(Of TSource) Method

Sets the merge options for this query, which specify how the query will buffer output.

Namespace:  System.Linq
Assemblies:   System.Linq.Parallel (in System.Linq.Parallel.dll)
  System.Core (in System.Core.dll)

<ExtensionAttribute> _
Public Shared Function WithMergeOptions(Of TSource) ( _
	source As ParallelQuery(Of TSource), _
	mergeOptions As ParallelMergeOptions _
) As ParallelQuery(Of TSource)

Type Parameters


The type of elements of source.


Type: System.Linq.ParallelQuery(Of TSource)

A ParallelQuery on which to set the option.

Type: System.Linq.ParallelMergeOptions

The merge options to set for this query.

Return Value

Type: System.Linq.ParallelQuery(Of TSource)
ParallelQuery representing the same query as source, but with the registered merge options.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type ParallelQuery(Of TSource). When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).


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


mergeOptions is not a valid ParallelMergeOptions value.


WithMergeOptions is used multiple times in the query.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1
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