ExternalDataEventArgs Class
Represents the data sent when an event is raised using the HandleExternalEventActivity activity.
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
| Name | Description | |
|---|---|---|
![]() | ExternalDataEventArgs() | Initializes a new instance of the ExternalDataEventArgs class. |
![]() | ExternalDataEventArgs(Guid) | Initializes a new instance of the ExternalDataEventArgs class using the instance identifier of the workflow. |
![]() | ExternalDataEventArgs(Guid, IPendingWork^, Object^) | Initializes a new instance of the ExternalDataEventArgs class. |
![]() | ExternalDataEventArgs(Guid, IPendingWork^, Object^, Boolean) | Initializes a new instance of the ExternalDataEventArgs class. |
| Name | Description | |
|---|---|---|
![]() | Identity | Gets or sets the identity of the user that raised the event. |
![]() | InstanceId | Gets or sets the workflow instance identifier for the workflow instance that contains the HandleExternalEventActivity that is expected to handle the event. |
![]() | WaitForIdle | Gets or sets a value that indicates whether the event should be raised immediately, or if the workflow should go idle before raising the event. |
![]() | WorkHandler | Gets or sets the IPendingWork to allow the external code, raising the event, to participate in the batch. |
![]() | WorkItem | Gets or sets the object that contains the external code that raises the event. |
| Name | Description | |
|---|---|---|
![]() | Equals(Object^) | Determines whether the specified object is equal to the current object.(Inherited from Object.) |
![]() | Finalize() | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.) |
![]() | GetHashCode() | Serves as the default hash function. (Inherited from Object.) |
![]() | GetType() | |
![]() | MemberwiseClone() | |
![]() | ToString() | Returns a string that represents the current object.(Inherited from Object.) |
Note |
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This material discusses types and namespaces that are obsolete. For more information, see Deprecated Types in Windows Workflow Foundation 4.5. |
A local communication interface marked with ExternalDataExchangeAttribute must declare a type that derives from ExternalDataEventArgs in the interface definition for the corresponding event to be handled in a workflow with a HandleExternalEventActivity activity.
An event class that inherits from ExternalDataEventArgs must implement a constructor that uses the :base(instanceId) constructor. In addition, the new event class must be marked as Serializable as shown in the following code.
[Serializable] public class TaskEventArgs : ExternalDataEventArgs { private string orderName; public TaskEventArgs(Guid instanceId, string id) :base(instanceId) { orderName = id; } public string Id { get { return orderName; } set { orderName = value; } } }
Available since 3.0
Any public static ( Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.



