Make rows editable

Question

CASE e_ucomm .
      WHEN 'CHANGE' .
        CALL METHOD gr_alvgrid->get_selected_rows
          IMPORTING
            et_row_no = lt_selected_rows.
*        READ TABLE lt_selected_rows INTO ls_selected_row INDEX 1 .
*        IF sy-subrc NE 0 .
*          MESSAGE s000(su) WITH 'Select a row!'(203) .
*        ENDIF .
        LOOP AT lt_selected_rows INTO ls_selected_row.
          READ TABLE i_output INDEX ls_selected_row-row_id TRANSPORTING NO FIELDS.
          IF sy-subrc = 0 .
            ls_stylerow-fieldname = 'MINIMUM' .
            ls_stylerow-style = cl_gui_alv_grid=>mc_style_enabled .
            APPEND ls_stylerow TO lt_styletab .
          ENDIF .
          INSERT LINES OF lt_styletab INTO table ls_listrow-cellstyles .
          APPEND ls_listrow to i_output.
        ENDLOOP .
I have given the code as above to make by field 'MINIMUM' as editable in my final alv display. But when i execute it its not getting displayed in the editable mode.
Can u find th problem and tell me

Answer 1

My entire code,
CLASS lcl_event_receiver DEFINITION DEFERRED.
DATA event_receiver TYPE REF TO lcl_event_receiver.
*       CLASS lcl_event_receiver DEFINITION
CLASS lcl_event_receiver DEFINITION.
  PUBLIC SECTION.
    METHODS:
    handle_toolbar
        FOR EVENT toolbar OF cl_gui_alv_grid
            IMPORTING e_object e_interactive,
    handle_user_command
        FOR EVENT user_command OF cl_gui_alv_grid
            IMPORTING e_ucomm.
  PRIVATE SECTION.
ENDCLASS.                    "lcl_event_receiver DEFINITION
*       CLASS lcl_event_receiver IMPLEMENTATION
CLASS lcl_event_receiver IMPLEMENTATION.
  METHOD handle_toolbar.
    DATA: ls_toolbar TYPE stb_button.
    CLEAR ls_toolbar.
*    MOVE 3 TO ls_toolbar-butn_type.
*    APPEND ls_toolbar TO i_object->mt_toolbar.
*    CLEAR ls_toolbar.
    MOVE 'CHANGE' TO ls_toolbar-function.                   "#EC NOTEXT
    MOVE icon_change TO ls_toolbar-icon.
    MOVE 'Change rows' TO ls_toolbar-quickinfo.
*    MOVE 'Passenger Info'(201) TO ls_toolbar-text.
    MOVE ' ' TO ls_toolbar-disabled.                        "#EC NOTEXT
    APPEND ls_toolbar TO e_object->mt_toolbar.
    MOVE 'DELETE' TO ls_toolbar-function.                   "#EC NOTEXT
    MOVE icon_delete TO ls_toolbar-icon.
    MOVE 'Delete rows' TO ls_toolbar-quickinfo.
*    MOVE 'Passenger Info'(201) TO ls_toolbar-text.
    MOVE ' ' TO ls_toolbar-disabled.                        "#EC NOTEXT
    APPEND ls_toolbar TO e_object->mt_toolbar.
    MOVE 'NEW ENTRIES' TO ls_toolbar-function.              "#EC NOTEXT
    MOVE icon_create TO ls_toolbar-icon.
    MOVE 'New records' TO ls_toolbar-quickinfo.
    MOVE 'New Entry'(201) TO ls_toolbar-text.
    MOVE ' ' TO ls_toolbar-disabled.                        "#EC NOTEXT
    APPEND ls_toolbar TO e_object->mt_toolbar.
  ENDMETHOD.                    "handle_toolbar
  METHOD handle_user_command.
    DATA lt_selected_rows TYPE lvc_t_roid .
    DATA ls_selected_row TYPE lvc_s_roid .
*    DATA i_ucomm LIKE sy-ucomm.
    DATA ls_listrow LIKE LINE OF i_output .
    DATA ls_stylerow TYPE lvc_s_styl .
    DATA lt_styletab TYPE lvc_t_styl .
    DATA l_index TYPE i.
    CASE e_ucomm .
      WHEN 'CHANGE' .
        CALL METHOD gr_alvgrid->get_selected_rows
          IMPORTING
            et_row_no = lt_selected_rows.
*        READ TABLE lt_selected_rows INTO ls_selected_row INDEX 1 .
*        IF sy-subrc NE 0 .
*          MESSAGE s000(su) WITH 'Select a row!'(203) .
*        ENDIF .
        LOOP AT lt_selected_rows INTO ls_selected_row.
          l_index = sy-tabix.
          READ TABLE i_output INDEX ls_selected_row-row_id TRANSPORTING NO FIELDS.
          IF sy-subrc = 0 .
            ls_stylerow-fieldname = 'MINIMUM' .
            ls_stylerow-style = cl_gui_alv_grid=>mc_style_enabled .
            APPEND ls_stylerow TO lt_styletab .
          ENDIF .
          INSERT LINES OF lt_styletab INTO TABLE ls_listrow-cellstyles .
*          MODIFY i_output FROM wa_output INDEX l_tabix TRANSPORTING lt_listrow
          MODIFY i_output FROM ls_listrow INDEX l_index.
          PERFORM s_input_ready.
          PERFORM s_refresh_display.
        ENDLOOP .
    ENDCASE .
  ENDMETHOD.                    "handle_user_command
ENDCLASS.                    "lcl_event_receiver IMPLEMENTATION
*Building ALV layout
FORM s_build_layout .
  gs_layout-cwidth_opt = c_x.
  gs_layout-zebra = c_x.
  gs_layout-sel_mode = 'D'. "For rows, columns and cells
  gs_layout-grid_title = 'ASSORTMENT LIST'.
*  gs_layout-no_toolbar = 'X'.
  gs_layout-stylefname = 'CELLSTYLES'.
ENDFORM.                    " S_BULID_LAYOUT
*&      Form  S_DISPLAY_ALV
*       text
*  -->  p1        text
*  <--  p2        text
FORM ss_display_alv.
  IF gr_alvgrid IS INITIAL .
*----Creating custom container instance
    CREATE OBJECT gr_ccontainer
      EXPORTING
        container_name              = gc_custom_control_name
      EXCEPTIONS
        cntl_error                  = 1
        cntl_system_error           = 2
        create_error                = 3
        lifetime_error              = 4
        lifetime_dynpro_dynpro_link = 5
        OTHERS                      = 6.
    IF sy-subrc <> 0.
*--Exception handling
    ENDIF.
*----Creating ALV Grid instance
    CREATE OBJECT gr_alvgrid
      EXPORTING
        i_parent          = gr_ccontainer
      EXCEPTIONS
        error_cntl_create = 1
        error_cntl_init   = 2
        error_cntl_link   = 3
        error_dp_create   = 4
        OTHERS            = 5.
    IF sy-subrc <> 0.
*--Exception handling
    ENDIF.
*----Preparing field catalog.
    PERFORM s_build_fldctlg.
    PERFORM s_status USING rt_extab.
*----Preparing layout structure
    PERFORM s_build_layout.
    PERFORM hide_standard." CHANGING ls_exclude." TYPE ui_functions.
    CALL METHOD gr_alvgrid->set_table_for_first_display
      EXPORTING
        i_save                        = 'X'
        is_layout                     = gs_layout
        it_toolbar_excluding          = pt_exclude
      CHANGING
        it_outtab                     = i_output[]
        it_fieldcatalog               = i_fldctlg
      EXCEPTIONS
        invalid_parameter_combination = 1
        program_error                 = 2
        too_many_lines                = 3
        OTHERS                        = 4.
    IF sy-subrc <> 0.
*--Exception handling
    ENDIF.
  ELSE .
  ENDIF .
ENDFORM.                    " S_DISPLAY_ALV
*&      Module  S_DISPLAY_ALV  OUTPUT
*       text
MODULE s_display_alv OUTPUT.
*  SET PF-STATUS 'MAIN100'.
*  SET TITLEBAR 'MAIN100'.
  PERFORM ss_display_alv.
  CREATE OBJECT event_receiver.
  SET HANDLER event_receiver->handle_user_command FOR gr_alvgrid.
  SET HANDLER event_receiver->handle_toolbar FOR gr_alvgrid.
  CALL METHOD gr_alvgrid->set_toolbar_interactive.
ENDMODULE.                 " S_DISPLAY_ALV  OUTPUT
FORM s_refresh_display .
  CALL METHOD gr_alvgrid->refresh_table_display
*                   EXPORTING
*                     is_stable      =
*                     i_soft_refresh =
    EXCEPTIONS
      finished       = 1
      OTHERS         = 2
  IF sy-subrc <> 0.
  ENDIF.
ENDFORM.                    " S_REFRESH_DISPLAY
*&      Form  S_INPUT_READY
*       text
*  -->  p1        text
*  <--  p2        text
form S_INPUT_READY .
CALL METHOD gr_alvgrid->set_ready_for_input
  EXPORTING
    i_ready_for_input = 1
endform.                    " S_INPUT_READY