Parallel Class

Definition

public ref class Parallel sealed : System::Activities::NativeActivity

[System.Windows.Markup.ContentProperty("Branches")]
public sealed class Parallel : System.Activities.NativeActivity

[<System.Windows.Markup.ContentProperty("Branches")>]
type Parallel = class
    inherit NativeActivity

Public NotInheritable Class Parallel
Inherits NativeActivity

Inheritance

Object

Activity

NativeActivity

Parallel

Attributes

ContentPropertyAttribute

Examples

The following code sample demonstrates creating a Parallel activity.

return new Parallel
{
    // Timeout from branch causes other branch to cancel.
    CompletionCondition = true,

    Branches =
    {
        // Delay Branch
        new Sequence
        {
            Activities =
            {
                new WriteLine { Text = "Branch1: Body is about to Delay 2secs transferring execution to Branch2" },
                new Delay
                {
                    Duration = TimeSpan.FromSeconds(2)
                },
                new WriteLine { Text = "Branch1: Body is about to complete causing Branch2 to cancel.." },
            }
        },

Remarks

A Parallel activity operates by simultaneously scheduling each Activity in its Branches collection at the start. It completes when all of its Branches complete or when its CompletionCondition property evaluates to true. While all the Activity objects run asynchronously, they do not execute on separate threads, so each successive activity only executes when the previously scheduled activity completes or goes idle. If none of the child activities of this activity go idle, this activity execute in the same way that a Sequence activity does.

Constructors

Properties

Methods

Applies to