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Display/Change mode of Editable fields in ALV



 
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PostPosted: Tue Jan 15, 2008 2:10 pm    Post subject: Display/Change mode of Editable fields in ALV Reply with quote
Display/Change mode of Editable fields in ALV using Function Modules but not Custom Containers
Chandrasekhar jagarlamudi

When we have an editable field in ALV , we get stuck when we use ALV GRID Function Module regarding how to make an editable field in display mode
To overcome that we go for Custom containers.
Here is a simple solution for that.
The below program will make the first 5 fields disabled and the next 7 enabled.

Code:
REPORT zalv_display_change.

TABLES :t247.

TYPE-POOLS slis. "Type definitions for alv report

DATA: it_fieldcat TYPE lvc_t_fcat,
wa_fieldcat TYPE lvc_s_fcat.

DATA: wa_layout TYPE lvc_s_layo.

DATA : BEGIN OF it_final OCCURS 0,
check(1),
celltab TYPE lvc_t_styl, " Switch between display/change
mnr LIKE t247-mnr,
ltx LIKE t247-ltx,
END OF it_final.
DATA : wa_final LIKE it_final.
DATA : w_repid LIKE sy-repid.

w_repid = sy-repid.

REFRESH it_final.
SELECT mnr ltx
FROM t247
INTO CORRESPONDING FIELDS OF TABLE it_final
WHERE spras EQ 'E'.


wa_fieldcat-fieldname = 'CHECK'.
wa_fieldcat-tabname = 'IT_FINAL'.
wa_fieldcat-checkbox = 'X'.
wa_fieldcat-edit = 'X'..
wa_fieldcat-outputlen = '3'.
wa_fieldcat-col_pos = '1'.
APPEND wa_fieldcat TO it_fieldcat.
CLEAR wa_fieldcat.

wa_fieldcat-fieldname = 'MNR'.
wa_fieldcat-tabname = 'IT_FINAL'.
wa_fieldcat-outputlen = '8'.
wa_fieldcat-col_pos = '2'.
wa_fieldcat-reptext = 'Month'.
APPEND wa_fieldcat TO it_fieldcat.
CLEAR wa_fieldcat.

wa_fieldcat-fieldname = 'LTX'.
wa_fieldcat-tabname = 'IT_FINAL'.
wa_fieldcat-outputlen = '20'.
wa_fieldcat-col_pos = '3'.
wa_fieldcat-reptext = 'Month Desc'.
APPEND wa_fieldcat TO it_fieldcat.
CLEAR wa_fieldcat.

DATA: wa_celltab TYPE lvc_s_styl,
it_celltab TYPE lvc_t_styl,
l_index TYPE i.
CLEAR : wa_celltab,wa_final,it_celltab.
REFRESH it_celltab.

*Initialize the celltab table
LOOP AT it_final INTO wa_final.
  l_index = sy-tabix.
  wa_celltab-fieldname = 'CHECK'.
  wa_celltab-style = cl_gui_alv_grid=>mc_style_enabled.
  INSERT wa_celltab INTO TABLE it_celltab.
  INSERT LINES OF it_celltab INTO TABLE wa_final-celltab.
  MODIFY it_final FROM wa_final INDEX l_index.
ENDLOOP.

*Make the first five 5 rows as disabled
CLEAR l_index.
LOOP AT it_final INTO wa_final.
  l_index = sy-tabix.
  IF sy-tabix LE 5.
    LOOP AT wa_final-celltab INTO wa_celltab.
      IF wa_celltab-fieldname EQ 'CHECK' .
        wa_celltab-style = cl_gui_alv_grid=>mc_style_disabled.
        MODIFY wa_final-celltab FROM wa_celltab.
        MODIFY it_final INDEX l_index FROM wa_final TRANSPORTING celltab.
      ENDIF.
    ENDLOOP.
  ENDIF.
ENDLOOP.


wa_layout-box_fname = 'CHECK'.
wa_layout-no_rowmark = 'X'.
wa_layout-stylefname = 'CELLTAB'.

CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY_LVC'
  EXPORTING
    i_callback_program = w_repid
    i_grid_title       = 'GRID DISPLAY'
    is_layout_lvc      = wa_layout
    it_fieldcat_lvc    = it_fieldcat
  TABLES
    t_outtab           = it_final
  EXCEPTIONS
    program_error      = 1
    OTHERS             = 2.
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