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ListenActivity Class

Makes the workflow wait for any one of several possible events before the activity proceeds. This class cannot be inherited.

Namespace: System.Workflow.Activities
Assembly: System.Workflow.Activities (in system.workflow.activities.dll)

public sealed class ListenActivity : CompositeActivity, IActivityEventListener<ActivityExecutionStatusChangedEventArgs>
public final class ListenActivity extends CompositeActivity implements IActivityEventListener<ActivityExecutionStatusChangedEventArgs>
public final class ListenActivity extends CompositeActivity implements IActivityEventListener<ActivityExecutionStatusChangedEventArgs>
Not applicable.

The ListenActivity is a CompositeActivity, meaning the ListenActivity can contain other activities. The ListenActivity can only contain EventDrivenActivity activities, and must have a minimum of two child activities.

The ListenActivity may contain many branches, and each branch is waiting for a particular event to occur before running. Each branch is event driven and the event that occurs first will run the corresponding branch first. All other branches cancel and stop listening for events.

The ListenActivity cannot be used in state machine workflows.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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