//
private Node WrapInRowInplace (Node node)
{
Node n = new Node ();
node.CopyTo (n);
n.IsAppend = node.IsAppend;
n.InternalMark = node.InternalMark;
Node row = this.CreateRow ();
node.parent_.ReplaceChild (node, row);
row.AdoptChild (n);
return n;
}