Suppressing nodes without parent in a TreeGrid?

[leeyuiwah]

A TreeGrid by default would display a node even if the node's parent is not in the tree -- the node would just be shown at the top level of the tree. Can we change the behavior so that the node would not be shown?

Thanks!

[Isomorphic]

The best way to do this is just to avoid providing such nodes to the Tree. There is no capability to take a node you have provided explicitly, and yet ignore it.