Return the parent task, or null if this is a root task.
The parent task, or null if this is a root task.
| Exception Type | Condition |
|---|---|
| InvalidOperationException | The object has already been removed. |
| CollaborationException | The method call resulted in an error. |
| SoapException | There was a communication problem during the execution of the remote method call. |
ITask Interface | Plumtree.Remote.PRC.Collaboration.Tasklist Namespace