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BatchBlock<T> Constructor (Int32, GroupingDataflowBlockOptions)

.NET Framework 4.5

Initializes a new BatchBlock<T> with the specified batch size, declining option, and block options.

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

public BatchBlock(
	int batchSize,
	GroupingDataflowBlockOptions dataflowBlockOptions


Type: System.Int32

The number of items to group into a batch.

Type: System.Threading.Tasks.Dataflow.GroupingDataflowBlockOptions

The options with which to configure this BatchBlock<T>.


The batchSize must be positive.


The batchSize must be smaller than the value of the BoundedCapacity option if a non-default value has been set.


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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