code: def fillDataProducts(self, dps):
          
          item = None
          for dp in dps:
              if not dp.ignored:
                  item = self._makeDPItem(self, dp, item)
                  # ensure combobox widgets are made
                  self._itemComboBox(item, self.ColAction)
                  self._itemComboBox(item, self.ColRender)
docs: Fills listview with existing data products