LOGIC FOR PF STATUS BUTTON WHILE USING ALV GRID DISPLAY

[Shreyas5]

CONDITION: Select the checkbox and input XYZ in material description and click on the Check Data button.
A pop up must appear as “ Input is invalid”.

I WANT IT TO PROCESS AS WHEN CHECHBOX IS TICKED AND IF WE ENTER XYZ IN MATERIAL DESCRIPTION IT SHOULD GIVE A MESSAGE AFTER CLICKING ON CHECKDATA BUTTON FROM PF STATUS

MY CODE FOR REFFERENCE:
*&---------------------------------------------------------------------*
*& Report  Z_TASK4
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT Z_TASK4.

TABLES: MARA, MARC, MARD, MAKT.

TYPE-POOLS: SLIS.

TYPES: BEGIN OF TY_FINAL,
        MATNR TYPE MARA-MATNR,
        ERSDA TYPE MARA-ERSDA,
        ERNAM TYPE MARA-ERNAM,
        MTART TYPE MARA-MTART,
        WERKS TYPE MARC-WERKS,
        LGORT TYPE MARD-LGORT,
        XCHAR TYPE MARC-XCHAR,
        MAKTX TYPE MAKT-MAKTX,
        CHECK TYPE C,
        LINE_COLOR(4),
        COL_FIELD TYPE SLIS_T_SPECIALCOL_ALV,
      END OF TY_FINAL.

 TYPES: BEGIN OF TY_MARA,
            MATNR TYPE MARA-MATNR,
            ERSDA TYPE MARA-ERSDA,
            ERNAM TYPE MARA-ERNAM,
            MTART TYPE MARA-MTART,
        END OF TY_MARA.

types :  begin of ty_makt,
         matnr type makt-matnr,
         maktx type makt-maktx,
  end of ty_makt.

types :  begin of ty_marc,
         matnr type marc-matnr,
         werks type marc-werks,
         xchar type marc-xchar,
         end of ty_marc.

types :  begin of ty_mard,
        matnr type mard-matnr,
        werks type mard-werks,
        lgort type mard-lgort,
end of ty_mard.

types : begin of ty_mtart,
  mtart type mara-mtart,
  end of ty_mtart.

types : begin of ty_matnr,
  matnr type mara-matnr,
  end of ty_matnr.

*DATA DECLARATIONS

DATA: LS_COL_FIELD TYPE SLIS_SPECIALCOL_ALV.

DATA: LT_FINAL TYPE STANDARD TABLE OF TY_FINAL,
      LS_FINAL TYPE TY_FINAL.

data :lt_mara type standard table of ty_mara,
      ls_mara type  ty_mara.
data :lt_makt type standard table of ty_makt,
      ls_makt type  ty_makt.
data :lt_marc type standard table of ty_marc,
      ls_marc type  ty_marc.
data :lt_mard type standard table of ty_mard,
      ls_mard type  ty_mard.


DATA: LT_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV,
      LS_FIELDCAT TYPE SLIS_FIELDCAT_ALV.

DATA: LS_LAYOUT TYPE SLIS_LAYOUT_ALV.

DATA : LT_HEADER TYPE SLIS_T_LISTHEADER,
       LS_HEADER TYPE SLIS_LISTHEADER.

DATA: POS TYPE I,
      LV_TIME(6) TYPE C,
      LV_DATE(8) TYPE C.

START-OF-SELECTION.
PERFORM GET_MATERIAL.
PERFORM GET_PLANT.
PERFORM GET_STORAGE.
PERFORM GET_DESCRIPTION.
PERFORM PREPARE_OUTPUT.

END-OF-SELECTION.
PERFORM GET_FIELDCAT.
PERFORM GET_LAYOUT.
PERFORM DISPLAY_ALV.

PERFORM TOP_OF_PAGE.


*&---------------------------------------------------------------------*
*&      Form  GET_FIELDCAT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_fieldcat .

CLEAR LT_FIELDCAT.
CLEAR LS_FIELDCAT.
POS = POS + 1.

LS_FIELDCAT-fieldname = 'CHECK'.
*LS_FIELDCAT-seltext_l = 'SELECT'.
LS_FIELDCAT-col_pos = POS.
LS_FIELDCAT-edit = 'X'.
LS_FIELDCAT-checkbox = 'X'.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'MATNR'.
LS_FIELDCAT-seltext_l = 'MATERIAL NO.'.
LS_FIELDCAT-HOTSPOT = 'X'.
LS_FIELDCAT-col_pos = POS.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'WERKS'.
LS_FIELDCAT-seltext_l = 'PLANT'.
LS_FIELDCAT-col_pos = POS.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'LGORT'.
LS_FIELDCAT-seltext_l = 'STORAGE LOCATION'.
LS_FIELDCAT-col_pos = POS.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'MTART'.
LS_FIELDCAT-seltext_l = 'MATERIAL TYPE'.
LS_FIELDCAT-col_pos = POS.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'XCHAR'.
LS_FIELDCAT-seltext_l = 'BATCH NO.'.
LS_FIELDCAT-col_pos = POS.
LS_FIELDCAT-emphasize = 'C500'.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

LS_FIELDCAT-fieldname = 'MAKTX'.
LS_FIELDCAT-seltext_l = 'MATERIAL DESCRIPTION'.
LS_FIELDCAT-col_pos = POS.
LS_FIELDCAT-edit = 'X'.
APPEND LS_FIELDCAT TO LT_FIELDCAT.
CLEAR LS_FIELDCAT.

ENDFORM.                    " GET_FIELDCAT


*&---------------------------------------------------------------------*
*&      Form  DISPLAY_ALV
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM display_alv .

DATA: lt_events TYPE slis_t_event,
        ls_event TYPE slis_alv_event.

  CLEAR ls_event.
  ls_event-name = 'PF_STATUS_SET'.
  ls_event-form = 'PF_STATUS'.
  APPEND ls_event TO lt_events.

  CLEAR ls_event.
  ls_event-name = 'USER_COMMAND'.
  ls_event-form = 'USER_COMMAND'.
  APPEND ls_event TO lt_events.


CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
 EXPORTING
*   I_INTERFACE_CHECK                 = ' '
*   I_BYPASSING_BUFFER                = ' '
*   I_BUFFER_ACTIVE                   = ' '
   I_CALLBACK_PROGRAM                = SY-REPID
   I_CALLBACK_PF_STATUS_SET          = 'PF_STATUS'
   I_CALLBACK_USER_COMMAND           = 'USER_COMMAND'
   I_CALLBACK_TOP_OF_PAGE            = 'TOP_OF_PAGE'
*   I_CALLBACK_HTML_TOP_OF_PAGE       = ' '
*   I_CALLBACK_HTML_END_OF_LIST       = ' '
*   I_STRUCTURE_NAME                  =
*   I_BACKGROUND_ID                   = ' '
*   I_GRID_TITLE                      =
*   I_GRID_SETTINGS                   =
   IS_LAYOUT                         = LS_LAYOUT
   IT_FIELDCAT                       = LT_FIELDCAT
*   IT_EXCLUDING                      =
*   IT_SPECIAL_GROUPS                 =
*   IT_SORT                           =
*   IT_FILTER                         =
*   IS_SEL_HIDE                       =
*   I_DEFAULT                         = 'X'
*   I_SAVE                            = ' '
*   IS_VARIANT                        =
   IT_EVENTS                         = LT_EVENTS
*   IT_EVENT_EXIT                     =
*   IS_PRINT                          =
*   IS_REPREP_ID                      =
*   I_SCREEN_START_COLUMN             = 0
*   I_SCREEN_START_LINE               = 0
*   I_SCREEN_END_COLUMN               = 0
*   I_SCREEN_END_LINE                 = 0
*   I_HTML_HEIGHT_TOP                 = 0
*   I_HTML_HEIGHT_END                 = 0
*   IT_ALV_GRAPHICS                   =
*   IT_HYPERLINK                      =
*   IT_ADD_FIELDCAT                   =
*   IT_EXCEPT_QINFO                   =
*   IR_SALV_FULLSCREEN_ADAPTER        =
* IMPORTING
*   E_EXIT_CAUSED_BY_CALLER           =
*   ES_EXIT_CAUSED_BY_USER            =
  TABLES
    t_outtab                          = LT_FINAL
 EXCEPTIONS
   PROGRAM_ERROR                     = 1
   OTHERS                            = 2
          .
IF sy-subrc <> 0.
* Implement suitable error handling here
ENDIF.


ENDFORM.                    " DISPLAY_ALV


*&---------------------------------------------------------------------*
*&      Form  GET_LAYOUT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_layout .

LS_LAYOUT-zebra = 'X'.
ls_layout-colwidth_optimize = 'X'.
LS_LAYOUT-info_fieldname = 'LINE_COLOR'.
LS_LAYOUT-coltab_fieldname = 'COL_FIELD'.

ENDFORM.                    " GET_LAYOUT


*&---------------------------------------------------------------------*
*&      Form  TOP_OF_PAGE
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM TOP_OF_PAGE.

CALL FUNCTION 'TIME_CHAR_CONVERSION'
  EXPORTING
    input         = SY-UZEIT
 IMPORTING
   TIMESTR       = LV_TIME
          .

CLEAR LT_HEADER.
CLEAR LS_HEADER.

LS_HEADER-typ = 'H'.
LS_HEADER-INFO = 'MATERIAL DETAILS LIST'.
APPEND LS_HEADER TO LT_HEADER.
CLEAR LS_HEADER.

LS_HEADER-typ = 'S'.
LS_HEADER-KEY = 'REPORT:'.
LS_HEADER-info = SY-REPID.
APPEND LS_HEADER TO LT_HEADER.
CLEAR LS_HEADER.

LS_HEADER-typ = 'S'.
LS_HEADER-KEY = 'USER:'.
LS_HEADER-info = SY-UNAME.
APPEND LS_HEADER TO LT_HEADER.
CLEAR LS_HEADER.

LS_HEADER-typ = 'S'.
LS_HEADER-KEY = 'DATE:'.
LS_HEADER-info = SY-DATUM.
APPEND LS_HEADER TO LT_HEADER.
CLEAR LS_HEADER.

LS_HEADER-typ = 'S'.
LS_HEADER-KEY = 'TIME:'.
LS_HEADER-info = LV_TIME.
APPEND LS_HEADER TO LT_HEADER.
CLEAR LS_HEADER.


CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
  EXPORTING
    it_list_commentary       = LT_HEADER
*   I_LOGO                   =
*   I_END_OF_LIST_GRID       =
*   I_ALV_FORM               =
          .
ENDFORM.                    " TOP_OF_PAGE


*&---------------------------------------------------------------------*
*&      Form  GET_EVENT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
*FORM get_event .
*
*
*ENDFORM.                    " GET_EVENT


*&---------------------------------------------------------------------*
*&      Form  GET_MATERIAL
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_material .

   SELECT MATNR ERSDA ERNAM MTART
     FROM MARA
     INTO TABLE LT_MARA.
     IF SY-SUBRC IS INITIAL.
        SORT LT_MARA BY MATNR.
     ENDIF.

ENDFORM.                    " GET_MATERIAL


*&---------------------------------------------------------------------*
*&      Form  GET_PLANT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_plant .
 IF LT_MARA IS NOT INITIAL.
     SELECT MATNR WERKS XCHAR
       FROM MARC
       INTO TABLE LT_MARC
       FOR ALL ENTRIES IN LT_MARA
       WHERE MATNR = LT_MARA-MATNR.
       IF SY-SUBRC IS INITIAL.
          SORT LT_MARC BY MATNR.
       ENDIF.
 ENDIF.
ENDFORM.                    " GET_PLANT


*&---------------------------------------------------------------------*
*&      Form  GET_STORAGE
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_storage .
   IF LT_MARC IS NOT INITIAL.
       SELECT MATNR WERKS LGORT
         FROM MARD
         INTO TABLE LT_MARD
         FOR ALL ENTRIES IN LT_MARC
         WHERE MATNR = LT_MARC-MATNR
         AND WERKS = LT_MARC-WERKS.
         IF SY-SUBRC IS INITIAL.
          SORT LT_MARD BY MATNR.
       ENDIF.
   ENDIF.
ENDFORM.                    " GET_STORAGE


*&---------------------------------------------------------------------*
*&      Form  GET_DESCRIPTION
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM get_description .
 IF LT_MARA IS NOT INITIAL.
     SELECT MATNR MAKTX
       FROM MAKT
       INTO TABLE LT_MAKT
       FOR ALL ENTRIES IN LT_MARA
       WHERE MATNR = LT_MARA-MATNR
      AND SPRAS = 0.
      IF SY-SUBRC IS INITIAL.
            SORT LT_MAKT BY MATNR.
      ENDIF.
 ENDIF.
ENDFORM.                    " GET_DESCRIPTION


*&---------------------------------------------------------------------*
*&      Form  PREPARE_OUTPUT
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM prepare_output .
  LOOP AT LT_MARA INTO LS_MARA.
    LS_FINAL-MATNR = LS_MARA-MATNR.
    LS_FINAL-ERSDA = LS_MARA-MATNR.
    LS_FINAL-ERNAM = LS_MARA-ERNAM.
    LS_FINAL-MTART = LS_MARA-MTART.

    READ TABLE LT_MAKT INTO LS_MAKT
    WITH KEY MATNR = LS_MARA-MATNR.
    IF SY-SUBRC IS INITIAL.
          LS_FINAL-MAKTX = LS_MAKT-MAKTX.
    ENDIF.

    read table lt_marc into ls_marc
    with key matnr = ls_mara-matnr.
    if sy-subrc = 0.
      ls_final-werks = ls_marc-werks.
      ls_final-xchar = ls_marc-xchar.
    endif.

    read table lt_mard into ls_mard
    with key matnr = ls_marc-matnr.
    if sy-subrc = 0.
      ls_final-lgort = ls_mard-lgort.
    endif.

    APPEND LS_FINAL TO LT_FINAL.
    CLEAR LS_FINAL.

  ENDLOOP.

  LOOP AT LT_FINAL INTO LS_FINAL.
      IF LS_FINAL-MTART = 'ROH'.
      clear LS_COL_FIELD.
      LS_COL_field-fieldname = 'MTART'.
      LS_COL_field-color-col = 6.
      append ls_COL_field to ls_final-COL_FIELD.
      modify lt_final from ls_final .
    endif.
  ENDLOOP.

ENDFORM.                    " PREPARE_OUTPUT


FORM PF_STATUS USING RT_EXTAB TYPE SLIS_T_EXTAB.
   SET PF-STATUS 'STANDARD' EXCLUDING RT_EXTAB.

   APPEND '&CHECK_DATA' TO rt_extab.
   APPEND 'EXIT' TO rt_extab.

ENDFORM.



FORM USER_COMMAND USING R_UCOMM LIKE SY-UCOMM
      RS_SELFIELD TYPE SLIS_SELFIELD.

   CASE R_UCOMM.
     WHEN '&CHECK_DATA'.
       PERFORM CHECK_DATA.
     WHEN 'EXIT' OR 'CANCEL'.
       LEAVE PROGRAM.
     WHEN 'BACK'.
       LEAVE PROGRAM.
     WHEN '&IC1'.
          READ TABLE LT_FINAL INTO LS_FINAL INDEX RS_SELFIELD-TABINDEX.
          CASE RS_SELFIELD-fieldname.
            WHEN 'MATNR'.
            IF LS_FINAL-MATNR IS NOT INITIAL.
                 SET PARAMETER ID 'MAT' FIELD LS_FINAL-MATNR.
                 CALL TRANSACTION 'MM03' AND SKIP FIRST SCREEN.
            ENDIF.
      ENDCASE.
   ENDCASE.
ENDFORM.


*&---------------------------------------------------------------------*
*&      Form  CHECK_DATA
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*  -->  p1        text
*  <--  p2        text
*----------------------------------------------------------------------*
FORM check_data .
*  DATA: LV_INVALID TYPE C.
*
*  LOOP AT LT_FINAL INTO LS_FINAL WHERE CHECK = 'X' AND MAKTX = 'XYZ'.
*    LV_INVALID = 'X'.
*    EXIT.
*  ENDLOOP.
*
*  IF LV_INVALID = 'X'.
*     MESSAGE 'INPUT IS INVALID' TYPE 'I'.
*  ENDIF.
MESSAGE 'INPUT IS INVALID' TYPE 'I'.
ENDFORM.                    " CHECK_DATA

[Shreyas5]

THIS IS HOW OUTPUT SCREEN LOOKS
THE BUTTON IS CHECKDATA 

[PRAGSMATIC]

so basically you want a popup functionality ?

[Shreyas5]

yes, i want to display a message saying input is invalid if checkbox is selected and user inputs xyz into MAKTX(material description) and clicks on check data button AND that message should pop up