How to FORM USER_COMMAND in ALV without using PERFORM.

Question

plz let me know all the steps as soon as possible.

Answer 1

Hi Aarif,
An Interactive ALV Report
*& Report  ZZ_22038_22098_002                                          *
*& This is an Interactive ALV report, where on line slection we can see
*&  the secondry list
REPORT  ZZ_22038_22098_002 NO STANDARD PAGE HEADING LINE-SIZE 650
MESSAGE-ID ZZ_9838                      .
TYPE-POOLS: SLIS.
*type declaration for values from ekko
TYPES: BEGIN OF I_EKKO,
       EBELN LIKE EKKO-EBELN,
       AEDAT LIKE EKKO-AEDAT,
       BUKRS LIKE EKKO-BUKRS,
       BSART LIKE EKKO-BSART,
       LIFNR LIKE EKKO-LIFNR,
       END OF I_EKKO.
DATA: IT_EKKO TYPE STANDARD TABLE OF I_EKKO INITIAL SIZE 0,
      WA_EKKO TYPE I_EKKO.
*type declaration for values from ekpo
TYPES: BEGIN OF I_EKPO,
       EBELN LIKE EKPO-EBELN,
       EBELP LIKE EKPO-EBELP,
       MATNR LIKE EKPO-MATNR,
       MENGE LIKE EKPO-MENGE,
       MEINS LIKE EKPO-MEINS,
       NETPR LIKE EKPO-NETPR,
       END OF I_EKPO.
DATA: IT_EKPO TYPE STANDARD TABLE OF I_EKPO INITIAL SIZE 0,
      WA_EKPO TYPE I_EKPO .
*variable for Report ID
DATA: V_REPID LIKE SY-REPID .
*declaration for fieldcatalog
DATA: I_FIELDCAT TYPE SLIS_T_FIELDCAT_ALV,
      WA_FIELDCAT TYPE SLIS_FIELDCAT_ALV.
DATA: IT_LISTHEADER TYPE SLIS_T_LISTHEADER.
declaration for events table where user comand or set PF status will
be defined
DATA: V_EVENTS TYPE SLIS_T_EVENT,
      WA_EVENT TYPE SLIS_ALV_EVENT.
declartion for layout
DATA: ALV_LAYOUT TYPE SLIS_LAYOUT_ALV.
declaration for variant(type of display we want)
DATA: I_VARIANT TYPE DISVARIANT,
      I_VARIANT1 TYPE DISVARIANT,
      I_SAVE(1) TYPE C.
*PARAMETERS : p_var TYPE disvariant-variant.
*Title displayed when the alv list is displayed
DATA:  I_TITLE_EKKO TYPE LVC_TITLE VALUE 'FIRST LIST DISPLAYED'.
DATA:  I_TITLE_EKPO TYPE LVC_TITLE VALUE 'SECONDRY LIST DISPLAYED'.
INITIALIZATION.
  V_REPID = SY-REPID.
  PERFORM BUILD_FIELDCATLOG.
  PERFORM EVENT_CALL.
  PERFORM POPULATE_EVENT.
START-OF-SELECTION.
  PERFORM DATA_RETRIEVAL.
  PERFORM BUILD_LISTHEADER USING IT_LISTHEADER.
  PERFORM DISPLAY_ALV_REPORT.
*&      Form  BUILD_FIELDCATLOG
      Fieldcatalog has all the field details from ekko
FORM BUILD_FIELDCATLOG.
  WA_FIELDCAT-TABNAME = 'IT_EKKO'.
  WA_FIELDCAT-FIELDNAME = 'EBELN'.
  WA_FIELDCAT-SELTEXT_M = 'PO NO.'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
  WA_FIELDCAT-TABNAME = 'IT_EKKO'.
  WA_FIELDCAT-FIELDNAME = 'AEDAT'.
  WA_FIELDCAT-SELTEXT_M = 'DATE.'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
  WA_FIELDCAT-TABNAME = 'IT_EKKO'.
  WA_FIELDCAT-FIELDNAME = 'BUKRS'.
  WA_FIELDCAT-SELTEXT_M = 'COMPANY CODE'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_EKKO'.
  WA_FIELDCAT-FIELDNAME = 'BUKRS'.
  WA_FIELDCAT-SELTEXT_M = 'DOCMENT TYPE'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'IT_EKKO'.
  WA_FIELDCAT-FIELDNAME = 'LIFNR'.
  WA_FIELDCAT-NO_OUT    = 'X'.
  WA_FIELDCAT-SELTEXT_M = 'VENDOR CODE'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
ENDFORM.                    "BUILD_FIELDCATLOG
*&      Form  EVENT_CALL
  we get all events - TOP OF PAGE or USER COMMAND in table v_events
FORM EVENT_CALL.
  CALL FUNCTION 'REUSE_ALV_EVENTS_GET'
   EXPORTING
     I_LIST_TYPE           = 0
   IMPORTING
     ET_EVENTS             = V_EVENTS
EXCEPTIONS
   LIST_TYPE_WRONG       = 1
   OTHERS                = 2
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
ENDFORM.                    "EVENT_CALL
*&      Form  POPULATE_EVENT
     Events populated for TOP OF PAGE & USER COMAND
FORM POPULATE_EVENT.
  READ TABLE V_EVENTS INTO WA_EVENT WITH KEY NAME = 'TOP_OF_PAGE'.
  IF SY-SUBRC EQ 0.
    WA_EVENT-FORM = 'TOP_OF_PAGE'.
    MODIFY V_EVENTS FROM WA_EVENT TRANSPORTING FORM WHERE NAME =
WA_EVENT-FORM.
  ENDIF.
  READ TABLE V_EVENTS INTO WA_EVENT WITH KEY NAME = 'USER_COMMAND'.
  IF SY-SUBRC EQ 0.
    WA_EVENT-FORM = 'USER_COMMAND'.
    MODIFY V_EVENTS FROM WA_EVENT TRANSPORTING FORM WHERE NAME =
WA_EVENT-NAME.
  ENDIF.
ENDFORM.                    "POPULATE_EVENT
*&      Form  data_retrieval
  retreiving values from the database table ekko
FORM DATA_RETRIEVAL.
  SELECT EBELN AEDAT BUKRS BSART LIFNR FROM EKKO INTO TABLE IT_EKKO.
ENDFORM.                    "data_retrieval
*&      Form  bUild_listheader
      text
     -->I_LISTHEADEtext
FORM BUILD_LISTHEADER USING I_LISTHEADER TYPE SLIS_T_LISTHEADER.
  DATA HLINE TYPE SLIS_LISTHEADER.
  HLINE-INFO = 'this is my first alv pgm'.
  HLINE-TYP = 'H'.
ENDFORM.                    "build_listheader
*&      Form  display_alv_report
      text
FORM DISPLAY_ALV_REPORT.
  V_REPID = SY-REPID.
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
   EXPORTING
     I_CALLBACK_PROGRAM                = V_REPID
  I_CALLBACK_PF_STATUS_SET          = ' '
     I_CALLBACK_USER_COMMAND           = 'USER_COMMAND'
     I_CALLBACK_TOP_OF_PAGE            = 'TOP_OF_PAGE'
     I_GRID_TITLE                      = I_TITLE_EKKO
  I_GRID_SETTINGS                   =
  IS_LAYOUT                         = ALV_LAYOUT
     IT_FIELDCAT                       = I_FIELDCAT[]
  IT_EXCLUDING                      =
  IT_SPECIAL_GROUPS                 =
  IT_SORT                           =
  IT_FILTER                         =
  IS_SEL_HIDE                       =
    i_default                         = 'ZLAY1'
     I_SAVE                            = 'A'
    is_variant                        = i_variant
     IT_EVENTS                         = V_EVENTS
    TABLES
      T_OUTTAB                          = IT_EKKO
EXCEPTIONS
  PROGRAM_ERROR                     = 1
  OTHERS                            = 2
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
ENDFORM.                    "display_alv_report
*&      Form  TOP_OF_PAGE
      text
FORM TOP_OF_PAGE.
  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY       = IT_LISTHEADER
   i_logo                   =
   I_END_OF_LIST_GRID       =
ENDFORM.                    "TOP_OF_PAGE
*&      Form  USER_COMMAND
      text
     -->R_UCOMM    text
     -->,          text
     -->RS_SLEFIELDtext
FORM USER_COMMAND USING R_UCOMM LIKE SY-UCOMM
RS_SELFIELD TYPE SLIS_SELFIELD.
  CASE R_UCOMM.
    WHEN '&IC1'.
      READ TABLE IT_EKKO INTO WA_EKKO INDEX RS_SELFIELD-TABINDEX.
      PERFORM BUILD_FIELDCATLOG_EKPO.
      PERFORM EVENT_CALL_EKPO.
      PERFORM POPULATE_EVENT_EKPO.
      PERFORM DATA_RETRIEVAL_EKPO.
      PERFORM BUILD_LISTHEADER_EKPO USING IT_LISTHEADER.
      PERFORM DISPLAY_ALV_EKPO.
  ENDCASE.
ENDFORM.                    "user_command
*&      Form  BUILD_FIELDCATLOG_EKPO
      text
FORM BUILD_FIELDCATLOG_EKPO.
  WA_FIELDCAT-TABNAME = 'IT_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'EBELN'.
  WA_FIELDCAT-SELTEXT_M = 'PO NO.'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
  WA_FIELDCAT-TABNAME = 'IT_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'EBELP'.
  WA_FIELDCAT-SELTEXT_M = 'LINE NO'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
  WA_FIELDCAT-TABNAME = 'I_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'MATNR'.
  WA_FIELDCAT-SELTEXT_M = 'MATERIAL NO.'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'I_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'MENGE'.
  WA_FIELDCAT-SELTEXT_M = 'QUANTITY'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'I_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'MEINS'.
  WA_FIELDCAT-SELTEXT_M = 'UOM'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
WA_FIELDCAT-TABNAME = 'I_EKPO'.
  WA_FIELDCAT-FIELDNAME = 'NETPR'.
  WA_FIELDCAT-SELTEXT_M = 'PRICE'.
  APPEND WA_FIELDCAT TO I_FIELDCAT.
  CLEAR WA_FIELDCAT.
ENDFORM.                    "BUILD_FIELDCATLOG_EKPO
*&      Form  event_call_ekpo
  we get all events - TOP OF PAGE or USER COMMAND in table v_events
FORM EVENT_CALL_EKPO.
  CALL FUNCTION 'REUSE_ALV_EVENTS_GET'
   EXPORTING
     I_LIST_TYPE           = 0
   IMPORTING
     ET_EVENTS             = V_EVENTS
EXCEPTIONS
  LIST_TYPE_WRONG       = 1
  OTHERS                = 2
  IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
  ENDIF.
ENDFORM.                    "event_call_ekpo
*&      Form  POPULATE_EVENT
       Events populated for TOP OF PAGE & USER COMAND
FORM POPULATE_EVENT_EKPO.
  READ TABLE V_EVENTS INTO WA_EVENT WITH KEY NAME = 'TOP_OF_PAGE'.
  IF SY-SUBRC EQ 0.
    WA_EVENT-FORM = 'TOP_OF_PAGE'.
    MODIFY V_EVENTS FROM WA_EVENT TRANSPORTING FORM WHERE NAME =
WA_EVENT-FORM.
  ENDIF.
  ENDFORM.                    "POPULATE_EVENT
*&      Form  TOP_OF_PAGE
      text
FORM F_TOP_OF_PAGE.
  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY       = IT_LISTHEADER
   i_logo                   =
   I_END_OF_LIST_GRID       =
ENDFORM.                    "TOP_OF_PAGE
*&      Form  USER_COMMAND
      text
     -->R_UCOMM    text
     -->,          text
     -->RS_SLEFIELDtext
*retreiving values from the database table ekko
FORM DATA_RETRIEVAL_EKPO.
SELECT EBELN EBELP MATNR MENGE MEINS NETPR FROM EKPO INTO TABLE IT_EKPO.
ENDFORM.
FORM BUILD_LISTHEADER_EKPO USING I_LISTHEADER TYPE SLIS_T_LISTHEADER.
DATA: HLINE1 TYPE SLIS_LISTHEADER.
HLINE1-TYP = 'H'.
HLINE1-INFO = 'CHECKING PGM'.
ENDFORM.
FORM DISPLAY_ALV_EKPO.
CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
EXPORTING
  I_INTERFACE_CHECK                 = ' '
  I_BYPASSING_BUFFER                = ' '
  I_BUFFER_ACTIVE                   = ' '
   I_CALLBACK_PROGRAM                = V_REPID
  I_CALLBACK_PF_STATUS_SET          = ' '
  I_CALLBACK_USER_COMMAND           = 'F_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_TITLE_EKPO
  I_GRID_SETTINGS                   =
  IS_LAYOUT                         =
   IT_FIELDCAT                       = I_FIELDCAT[]
  IT_EXCLUDING                      =
  IT_SPECIAL_GROUPS                 =
  IT_SORT                           =
  IT_FILTER                         =
  IS_SEL_HIDE                       =
  I_DEFAULT                         =
   I_SAVE                            = 'A'
  IS_VARIANT                        =
   IT_EVENTS                         = V_EVENTS
  TABLES
    T_OUTTAB                          = IT_EKPO
EXCEPTIONS
   PROGRAM_ERROR                     = 1
   OTHERS                            = 2
IF SY-SUBRC <> 0.
MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
        WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
ENDFORM.
reward points to all helpful answers
kiran.M