DataflowMessageStatus Enumeration
Represents the status of a DataflowMessageHeader when passed between dataflow blocks.
Assembly: System.Threading.Tasks.Dataflow (in System.Threading.Tasks.Dataflow.dll)
| Member name | Description | |
|---|---|---|
| Accepted | Indicates that the ITargetBlock<TInput> accepted the message. Once a target has accepted a message, it is wholly owned by the target. | |
| Declined | Indicates that the ITargetBlock<TInput> declined the message. The ISourceBlock<TOutput> still owns the message. | |
| DecliningPermanently | Indicates that the ITargetBlock<TInput> declined the message. The ISourceBlock<TOutput> still owns the message. Additionally, the ITargetBlock<TInput> will decline all future messages sent by the source. | |
| NotAvailable | Indicates that the ITargetBlock<TInput> tried to accept the message from the ISourceBlock<TOutput>, but the message was no longer available. | |
| Postponed | Indicates that the ITargetBlock<TInput> postponed the message for potential consumption at a later time. The ISourceBlock<TOutput> still owns the message. |
 Note |
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The TPL Dataflow Library (System.Threading.Tasks.Dataflow namespace) is not distributed with the .NET Framework 4.5. To install the System.Threading.Tasks.Dataflow namespace, open your project in Visual Studio 2012, choose Manage NuGet Packages from the Project menu, and search online for the Microsoft.Tpl.Dataflow package. |