private void Reset()
 {
     InternalTrace(null);
     _currentnode = _doc.DocumentNode;
     _attindex    = -1;
 }
 /// <summary>
 /// Moves to the root node to which the current node belongs.
 /// </summary>
 public override void MoveToRoot()
 {
     _currentnode = _doc.DocumentNode;
     InternalTrace(null);
 }