bool editing:1 ; // Set to true in the constructor
  ArrayCtrl& Editing( bool b = true )                { editing = b; return *this ; }
  ArrayCtrl& NoEditing()                             { return Editing(false) ; }

bool ArrayCtrl::IsEditing() const {
  if (editing) // line added
    for(int i = 0; i < column.GetCount(); i++)
      if(column[i].edit) return true;
  return false;
}