ExecutionDataflowBlockOptions Class
Provides options used to configure the processing performed by dataflow blocks that process each message through the invocation of a user-provided delegate. These are dataflow blocks such as ActionBlock<TInput> and TransformBlock<TInput, TOutput>.
Assembly: System.Threading.Tasks.Dataflow (in System.Threading.Tasks.Dataflow.dll)
System.Threading.Tasks.Dataflow::DataflowBlockOptions
System.Threading.Tasks.Dataflow::ExecutionDataflowBlockOptions
| Name | Description | |
|---|---|---|
![]() | ExecutionDataflowBlockOptions() | Initializes a new ExecutionDataflowBlockOptions. |
| Name | Description | |
|---|---|---|
![]() | BoundedCapacity | Gets or sets the maximum number of messages that may be buffered by the block.(Inherited from DataflowBlockOptions.) |
![]() | CancellationToken | Gets or sets the CancellationToken to monitor for cancellation requests. (Inherited from DataflowBlockOptions.) |
![]() | MaxDegreeOfParallelism | Gets the maximum number of messages that may be processed by the block concurrently. |
![]() | MaxMessagesPerTask | Gets or sets the maximum number of messages that may be processed per task.(Inherited from DataflowBlockOptions.) |
![]() | NameFormat | Gets or sets the format string to use when a block is queried for its name.(Inherited from DataflowBlockOptions.) |
![]() | SingleProducerConstrained | Gets whether code using the dataflow block is constrained to one producer at a time. |
![]() | TaskScheduler | Gets or sets the TaskScheduler to use for scheduling tasks.(Inherited from DataflowBlockOptions.) |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | (Inherited from Object.) |
![]() | Finalize() | (Inherited from Object.) |
![]() | GetHashCode() | (Inherited from Object.) |
![]() | GetType() | (Inherited from Object.) |
![]() | MemberwiseClone() | (Inherited from Object.) |
![]() | ToString() | (Inherited from Object.) |
Note |
|---|
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. |
ExecutionDataflowBlockOptions is mutable and can be configured through its properties.
When specific configuration options are not set, the following defaults are used:
Options | Default |
|---|---|
TaskScheduler | |
CancellationToken | |
MaxMessagesPerTask | DataflowBlockOptions.Unbounded (-1) |
BoundedCapacity | DataflowBlockOptions.Unbounded (-1) |
MaxDegreeOfParallelism | 1 |
Dataflow block capture the state of the options at their construction. Subsequent changes to the provided ExecutionDataflowBlockOptions instance should not affect the behavior of a dataflow block.
Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



