alv grid und event handle_data_changed

Code: Alles auswählen.

      IF er_data_changed->mt_good_cells[] IS NOT INITIAL.
        LOOP AT er_data_changed->mt_good_cells INTO ls_good.
          MOVE-CORRESPONDING ls_good TO ls_good_tmp.

*neue Zeile und deshalb noch nicht in gt_data?
          READ TABLE er_data_changed->mt_inserted_rows INTO ls_ins
          WITH KEY row_id = ls_good-row_id.
          IF sy-subrc = 0.
* ja, neue Zeile

* Zeile zuerst an gt_data anhängen
            ASSIGN COMPONENT ls_good-fieldname OF STRUCTURE <ls_data> TO <l_value>.
            IF sy-subrc = 0.
              <l_value> = ls_good-value.
              MODIFY gt_data FROM <ls_data> INDEX ls_good-row_id.
              IF sy-subrc <> 0.
* Modify geht schief, da die Zeile noch nicht da ist --> Append
                APPEND <ls_data> TO gt_data.
              ENDIF.
            ENDIF.

          ELSE.
* nein, Zeile sollte vorhanden sein.
          ENDIF.

          READ TABLE gt_data ASSIGNING <ls_data> INDEX ls_good-row_id.
          IF <ls_data> IS ASSIGNED.
            ASSIGN COMPONENT ls_good-fieldname OF STRUCTURE <ls_data> TO <l_value>.
            IF sy-subrc = 0.
              <l_value> = ls_good-value.
              MODIFY gt_data FROM <ls_data> INDEX ls_good-row_id.
            ENDIF.
          ENDIF.
        ENDLOOP.