public void setAttributeVisibility(final int index, final boolean b) {
   form.setAttributeVisibility(index, b);
 }
 public int addAttribute(final String label, final IsWidget wid, final boolean visible) {
   int index = form.addAttribute(label, wid);
   setAttributeVisibility(index, visible);
   return index;
 }
 public int addRow(final IsWidget wid) {
   return form.addRow(wid);
 }
 public int addAttribute(final String label, final IsWidget wid) {
   return form.addAttribute(label, wid);
 }