DataflowMessageStatus Enum
Definition
Important
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Represents the status of a DataflowMessageHeader when passed between dataflow blocks.
public enum class DataflowMessageStatuspublic enum DataflowMessageStatustype DataflowMessageStatus = Public Enum DataflowMessageStatus- Inheritance
Fields
| Name | Value | Description |
|---|---|---|
| Accepted | 0 | Indicates that the ITargetBlock<TInput> accepted the message. Once a target has accepted a message, it is wholly owned by the target. |
| Declined | 1 | Indicates that the ITargetBlock<TInput> declined the message. The ISourceBlock<TOutput> still owns the message. |
| Postponed | 2 | Indicates that the ITargetBlock<TInput> postponed the message for potential consumption at a later time. The ISourceBlock<TOutput> still owns the message. |
| NotAvailable | 3 | Indicates that the ITargetBlock<TInput> tried to accept the message from the ISourceBlock<TOutput>, but the message was no longer available. |
| DecliningPermanently | 4 | 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. |
Remarks
Note
The TPL Dataflow Library (the System.Threading.Tasks.Dataflow namespace) is not distributed with .NET. To install the System.Threading.Tasks.Dataflow namespace in Visual Studio, open your project, choose Manage NuGet Packages from the Project menu, and search online for the System.Threading.Tasks.Dataflow package. Alternatively, to install it using the .NET Core CLI, run dotnet add package System.Threading.Tasks.Dataflow.
