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ExternalDataEventArgs Class

 
Note: This API is now obsolete.

Represents the data sent when an event is raised using the HandleExternalEventActivity activity.

Namespace:   System.Workflow.Activities
Assembly:  System.Workflow.Activities (in System.Workflow.Activities.dll)

System.Object
  System.EventArgs
    System.Workflow.Activities.ExternalDataEventArgs

[SerializableAttribute]
[ObsoleteAttribute("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")]
public class ExternalDataEventArgs : EventArgs

NameDescription
System_CAPS_pubmethodExternalDataEventArgs()

Initializes a new instance of the ExternalDataEventArgs class.

System_CAPS_pubmethodExternalDataEventArgs(Guid)

Initializes a new instance of the ExternalDataEventArgs class using the instance identifier of the workflow.

System_CAPS_pubmethodExternalDataEventArgs(Guid, IPendingWork, Object)

Initializes a new instance of the ExternalDataEventArgs class.

System_CAPS_pubmethodExternalDataEventArgs(Guid, IPendingWork, Object, Boolean)

Initializes a new instance of the ExternalDataEventArgs class.

NameDescription
System_CAPS_pubpropertyIdentity

Gets or sets the identity of the user that raised the event.

System_CAPS_pubpropertyInstanceId

Gets or sets the workflow instance identifier for the workflow instance that contains the HandleExternalEventActivity that is expected to handle the event.

System_CAPS_pubpropertyWaitForIdle

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.

System_CAPS_pubpropertyWorkHandler

Gets or sets the IPendingWork to allow the external code, raising the event, to participate in the batch.

System_CAPS_pubpropertyWorkItem

Gets or sets the object that contains the external code that raises the event.

NameDescription
System_CAPS_pubmethodEquals(Object)

Determines whether the specified object is equal to the current object.(Inherited from Object.)

System_CAPS_protmethodFinalize()

Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.(Inherited from Object.)

System_CAPS_pubmethodGetHashCode()

Serves as the default hash function. (Inherited from Object.)

System_CAPS_pubmethodGetType()

Gets the Type of the current instance.(Inherited from Object.)

System_CAPS_protmethodMemberwiseClone()

Creates a shallow copy of the current Object.(Inherited from Object.)

System_CAPS_pubmethodToString()

Returns a string that represents the current object.(Inherited from Object.)

System_CAPS_noteNote

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; }
    }
}

.NET Framework
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.

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