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JoinBlock<T1, T2>.ISourceBlock<Tuple<T1, T2>>.ReleaseReservation Method

.NET Framework 4.5

Called by a linked ITargetBlock<TInput> to release a previously reserved DataflowMessageHeader by this ISourceBlock<TOutput>.

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

void ISourceBlock<Tuple<T1, T2>>.ReleaseReservation(
	DataflowMessageHeader messageHeader,
	ITargetBlock<Tuple<T1, T2>> target


Type: System.Threading.Tasks.Dataflow.DataflowMessageHeader

The DataflowMessageHeader of the reserved message being released.

Type: System.Threading.Tasks.Dataflow.ITargetBlock<Tuple<T1, T2>>

The ITargetBlock<TInput> releasing the message it previously reserved.


ISourceBlock<TOutput>.ReleaseReservation(DataflowMessageHeader, ITargetBlock<TOutput>)


The messageHeader is not valid.


The target is null.


The target did not have the message reserved.

Only ITargetBlock<TInput> instances linked to this ISourceBlock<TOutput> instance may use ReleaseReservation, and it must only be used to release DataflowMessageHeader instances previously and successfully reserved by the target.

.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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