DataflowMessageStatus DataflowMessageStatus DataflowMessageStatus DataflowMessageStatus Enum

Definition

Represents the status of a DataflowMessageHeader when passed between dataflow blocks.

public enum class DataflowMessageStatus
public enum DataflowMessageStatus
type DataflowMessageStatus = 
Public Enum DataflowMessageStatus
Inheritance
DataflowMessageStatusDataflowMessageStatusDataflowMessageStatusDataflowMessageStatus

Fields

Accepted Accepted Accepted 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 Declined Declined Declined 1

Indicates that the ITargetBlock<TInput> declined the message. The ISourceBlock<TOutput> still owns the message.

DecliningPermanently DecliningPermanently DecliningPermanently 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.

NotAvailable NotAvailable NotAvailable NotAvailable 3

Indicates that the ITargetBlock<TInput> tried to accept the message from the ISourceBlock<TOutput>, but the message was no longer available.

Postponed Postponed Postponed Postponed 2

Indicates that the ITargetBlock<TInput> postponed the message for potential consumption at a later time.

The ISourceBlock<TOutput> still owns the message.

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.

Applies to