Multi select controller, çoklu seçim kontrolü

SalesTable salestablelocal;
  int sayac;



MultiSelectionHelper helper = MultiSelectionHelper::construct();

helper.parmDatasource(SalesTable_ds);

salestablelocal = helper.getFirst();
  while (salestablelocal.RecId != 0)




{

info(salestablelocal.SalesId);

sayac++;

salestablelocal = helper.getNext();

}
  if (sayac>1)



{
  throw error("@SYS18447");



}