Display Traffic Lights in SAP ALV

Use below steps to disable icons in ABAP ALV toolbar.

  1. Add a column to the internal table to hold the traffic lights value(i.e. 1 for RED, 2 for YELLOW and 3 for GREEN).
  2. Fetch data from database table and build field catalog.
  3. Assign different traffic lights to each row based on condition.
  4. To display traffic lights in the ALV, fill the lights field name in the LIGHTS_FIELDNAME of ALV layout.
  5. Pass field catalog to function module ‘REUSE_ALV_GRID_DISPLAY’.
TYPE-POOLS: slis.  " SLIS contains all the ALV data types
*&---------------------------------------------------------------------*
*& Data Types
*&---------------------------------------------------------------------*
TYPES: BEGIN OF ty_sbook.
        INCLUDE STRUCTURE sbook.
TYPES: icon TYPE c,  " Add field to hold traffic light value
       END OF ty_sbook.
*&---------------------------------------------------------------------*
*& Data Declaration
*&---------------------------------------------------------------------*
DATA: it_sbook     TYPE TABLE OF ty_sbook.
DATA: wa_sbook     TYPE ty_sbook.
DATA: it_fieldcat  TYPE slis_t_fieldcat_alv,
      wa_fieldcat  TYPE slis_fieldcat_alv.
DATA: is_layout    TYPE slis_layout_alv.
DATA: g_repid      TYPE sy-repid.
*&---------------------------------------------------------------------*
*& START-OF-SELECTION
*&---------------------------------------------------------------------*
START-OF-SELECTION.
  g_repid = sy-repid.
*Fetch data from the database
  SELECT * UP TO 20 ROWS FROM sbook INTO TABLE it_sbook.

*Assign different traffic lights to each row based on condition
  LOOP AT it_sbook INTO wa_sbook.
    IF wa_sbook-luggweight LE 0.
      wa_sbook-icon = 1.  " Red Traffic Light
    ELSEIF wa_sbook-luggweight LE 10.
      wa_sbook-icon = 2.  " Yellow Traffic Light
    ELSE.
      wa_sbook-icon = 3.  " Green Traffic Light
    ENDIF.
    MODIFY it_sbook FROM wa_sbook TRANSPORTING icon.
    CLEAR: wa_sbook.
  ENDLOOP.

*Build field catalog
  wa_fieldcat-fieldname  = 'CARRID'.    " Fieldname in the data table
  wa_fieldcat-seltext_m  = 'Airline'.   " Column description in the output
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'CONNID'.
  wa_fieldcat-seltext_m  = 'Con. No.'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'FLDATE'.
  wa_fieldcat-seltext_m  = 'Date'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'BOOKID'.
  wa_fieldcat-seltext_m  = 'Book. ID'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'FORCURAM'.
  wa_fieldcat-seltext_m  = 'Price'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'FORCURKEY'.
  wa_fieldcat-seltext_m  = 'Currency'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'LUGGWEIGHT'.
  wa_fieldcat-seltext_m  = 'Weight'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

  wa_fieldcat-fieldname  = 'WUNIT'.
  wa_fieldcat-seltext_m  = 'Unit'.
  APPEND wa_fieldcat TO it_fieldcat.
  CLEAR wa_fieldcat.

*Fill layout info.
*Fill traffic lights field name in the ALV layout
  is_layout-lights_fieldname = 'ICON'.

*Pass data and field catalog to ALV function module to display ALV list
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      i_callback_program = g_repid
      is_layout          = is_layout
      it_fieldcat        = it_fieldcat
    TABLES
      t_outtab           = it_sbook
    EXCEPTIONS
      program_error      = 1
      OTHERS             = 2.

Output

traffic-lights-in-abap-alv


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