return "";
    public String deleteSubUnit() throws FenixFilterException {        final Object[] argsToRead = { Integer                .valueOf(this.getChooseUnitIDHidden().getValue().toString()) };        try {            ServiceUtils.executeService(getUserView(), "DeleteUnit", argsToRead);        } catch (FenixServiceException e) {            setErrorMessage(e.getMessage());        } catch (DomainException e1) {            setErrorMessage(e1.getMessage());        }        return "";    }