ExternalDataEventArgs Class
Represents the data sent when an event is raised using the HandleExternalEventActivity activity.
Assembly: System.Workflow.Activities (in System.Workflow.Activities.dll)
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; } } }
Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.