Represents an ExternalDataExchangeService interface that enables workflow activities to request actions and handle events concerning workflow tasks, outside the workflow instance itself.
Assembly: Microsoft.SharePoint (in Microsoft.SharePoint.dll)
The following workflow activities in the Microsoft.SharePoint.WorkflowActions namespace can be used to call methods provided by this interface:
In addition, the following workflow activities can be used to respond to events raised by this service:
When this service raises an event, the event parameters are contained in the SPTaskServiceEventArgs class.