def _build_query(self, cp):
query = DdrLister()
query.file = '459.01'
query.iens = ',%s,' % (self.ien,)
query.fields = self._get_vista_field_str()
query.index = 'B'
query.screen = 'I $P(^(0),U,10)="%s"' % (cp,)
query.fieldnames = self._get_fieldnames()
return query
