col = ((ArrayColumnModel)af.getColumnModel()).getColumnIndex(ac.getIdentifier());
// If an explicit focus request occurs on an empty array field that allows append, then create
// a new row (that's what Forte did). CraigM 16/10/2007.
if (af.getRowCount() == 0 && af.isAllowsAppend()) {
af.appendRow(col);
}
else if (row >= af.getRowCount()) {
// TF:11/03/2009:A request has been made to focus to a non-existant row, do nothing
return;
}