ExternalDataEventArgs Class

Reference

Definition

Namespace:: System.Workflow.Activities

Assembly:: System.Workflow.Activities.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Caution

The System.Workflow.* types are deprecated. Instead, please use the new types from System.Activities.*

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

public ref class ExternalDataEventArgs : EventArgs

[System.Serializable]
public class ExternalDataEventArgs : EventArgs

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

[<System.Serializable>]
type ExternalDataEventArgs = class
    inherit EventArgs

[<System.Serializable>]
[<System.Obsolete("The System.Workflow.* types are deprecated.  Instead, please use the new types from System.Activities.*")>]
type ExternalDataEventArgs = class
    inherit EventArgs

Public Class ExternalDataEventArgs
Inherits EventArgs

Inheritance: Object

EventArgs
ExternalDataEventArgs

Attributes: SerializableAttribute ObsoleteAttribute

Examples

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; }  
    }  
}

Remarks

Note

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.

Constructors

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.

Properties

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.

Methods

Equals(Object)	Determines whether the specified object is equal to the current object. (Inherited from Object)
GetHashCode()	Serves as the default hash function. (Inherited from Object)
GetType()	Gets the Type of the current instance. (Inherited from Object)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

Applies to

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