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TransformManyBlock<TInput, TOutput> Constructor (Func<TInput, IEnumerable<TOutput>>, ExecutionDataflowBlockOptions)

.NET Framework 4.5

Initializes a new TransformManyBlock<TInput, TOutput> with the specified function and ExecutionDataflowBlockOptions.

Namespace:  System.Threading.Tasks.Dataflow
Assembly:  System.Threading.Tasks.Dataflow (in System.Threading.Tasks.Dataflow.dll)

public TransformManyBlock(
	Func<TInput, IEnumerable<TOutput>> transform,
	ExecutionDataflowBlockOptions dataflowBlockOptions


Type: System.Func<TInput, IEnumerable<TOutput>>

The function to invoke with each data element received. All of the data from the returned in the IEnumerable<T> will be made available as output from this TransformManyBlock<TInput, TOutput>.

Type: System.Threading.Tasks.Dataflow.ExecutionDataflowBlockOptions

The options with which to configure this TransformManyBlock<TInput, TOutput>.


The transform is null.


The dataflowBlockOptions is null.

.NET Framework

Supported in: 4.5

Portable Class Library

Supported in: Portable Class Library

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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