There is no support for an editor and its row growing during editing. It
might be possible, but could be quite difficult.
has anyone succeeded in doing this?
Don't use an editor is the only real answer.
Use a regular renderer with states, it's the only way I've found to get some good control over what's going on while "editing".
Be warned it's not nearly as quick as using regular editors.
use wordWrap="true" in the colum that is resizable