public override bool Accept(ITraverser traverser)
        {
            if (traverser.Enter(this))
            {
                for (int i = 0; i < _childNodes.Count; i++)
                {
                    if (!_childNodes[i].Accept(traverser))
                    {
                        break;
                    }
                }
            }

            return(traverser.Leave(this));
        }