code: public ProjectTask getDetailChildren()
      {
          if (m_recDetailChildren == null)
          {
              RecordOwner recordOwner = this.getRecordOwner();
              m_recDetailChildren = new ProjectTask(recordOwner);
              if (recordOwner != null)
                  recordOwner.removeRecord(m_recDetailChildren);
              m_recDetailChildren.addListener(new SubFileFilter(this, true));
          }
          return m_recDetailChildren;
      }
docs: GetDetailChildren Method.