How to trigger ENTER event in oo ALV grid

Question

Hi,
Can anybody help me out in catching the ENTER event in the oo ALV Grid. My requirement is as follows,
I have oo ALV Grid displaying hell lot of columns, in that vendor number column is an editable field so when the user enters the vendor number the immediate next cell showing the vendor name should be populated with the corresponding name as soon as he press enter button, I have search help also for vendor field.
Please give me some sample program which i can just do the copy+paste sort of as today is the deadline for the object.
Regards,
Suman

Answer 1

Hi,
This example is working. Please try this one.
CLASS lcl_event_receiver DEFINITION.
   PUBLIC SECTION.
     CLASS-METHODS:
      handle_data_changed
      FOR EVENT data_changed OF cl_gui_alv_grid
      IMPORTING er_data_changed e_onf4 e_ucomm.
ENDCLASS. "lcl_event_receiver DEFINITION
*       CLASS lcl_event_receiver IMPLEMENTATION
CLASS lcl_event_receiver IMPLEMENTATION.
   METHOD handle_data_changed.
     DATA : modi TYPE TABLE OF lvc_s_modi  ,
           modis TYPE lvc_s_modi,
           wa LIKE LINE OF git_alv_items,
           lv_matnr TYPE matnr.
     modi = er_data_changed->mt_mod_cells .
     LOOP AT modi INTO modis WHERE fieldname = 'MATNR'.
       MOVE modis-value TO lv_matnr.
       CALL FUNCTION 'CONVERSION_EXIT_MATN1_INPUT'
         EXPORTING
           input        = lv_matnr
         IMPORTING
           output       = lv_matnr
         EXCEPTIONS
           length_error = 1
           OTHERS       = 2.
       READ TABLE git_alv_items INTO wa INDEX modis-row_id .
       IF sy-subrc = 0.
         SELECT SINGLE maktx FROM makt
           INTO wa-maktx
          WHERE matnr = lv_matnr
            AND spras = sy-langu.
         MODIFY git_alv_items FROM wa INDEX modis-row_id.
       ENDIF.
     ENDLOOP.
     IF sy-subrc = 0.
       CALL METHOD alv_grid->refresh_table_display
         EXPORTING
           is_stable = gs_stbl.
     ENDIF.
   ENDMETHOD.                    "handle_data_changed
ENDCLASS. "lcl_event_receiver IMPLEMENTATION
DATA : eventreceiver TYPE REF TO lcl_event_receiver.
SET HANDLER eventreceiver->handle_data_changed FOR alv_grid.
       CALL METHOD alv_grid->set_table_for_first_display
         EXPORTING
           i_save                        = 'A'
           is_layout                     = layo_alv
           i_bypassing_buffer            = 'X'
           i_buffer_active               = ''
         CHANGING
           it_outtab                     = git_alv_items
           it_fieldcatalog               = fcat_alv
         EXCEPTIONS
           invalid_parameter_combination = 1
           program_error                 = 2
           too_many_lines                = 3
           OTHERS                        = 4.
       CALL METHOD alv_grid->register_edit_event
         EXPORTING
           i_event_id = cl_gui_alv_grid=>mc_evt_enter.