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ABAP ALV LIST VIEWER

This ALV program have all the basic report requirements such as page heading, page no, sub-total and a grand total.

* This is a basic ALV with the followings:-
* - Page Heading
* - Page No
* - Sub-Total
* - Grand Total

REPORT ZALV.

TYPE-POOLS: SLIS.

DATA: G_REPID LIKE SY-REPID,
GS_PRINT            TYPE SLIS_PRINT_ALV,
GT_LIST_TOP_OF_PAGE TYPE SLIS_T_LISTHEADER,
GT_EVENTS           TYPE SLIS_T_EVENT,
GT_SORT             TYPE SLIS_T_SORTINFO_ALV,
GS_LAYOUT           TYPE SLIS_LAYOUT_ALV,
GT_FIELDCAT         TYPE SLIS_T_FIELDCAT_ALV,
FIELDCAT_LN LIKE LINE OF GT_FIELDCAT,
COL_POS TYPE I.

DATA: BEGIN OF ITAB,
  FIELD1(5) TYPE C,
  FIELD2(5) TYPE C,
  FIELD3(5) TYPE P DECIMALS 2,
END OF ITAB.

DATA: BEGIN OF ITAB1 OCCURS 0.
  INCLUDE STRUCTURE ITAB.
DATA: END OF ITAB1.

DATA: BEGIN OF ITAB_FIELDCAT OCCURS 0.
  INCLUDE STRUCTURE ITAB.
DATA: END OF ITAB_FIELDCAT.

* Print Parameters
PARAMETERS:
            P_PRINT  AS CHECKBOX DEFAULT ' ', "PRINT IMMEDIATE
            P_NOSINF AS CHECKBOX DEFAULT 'X', "NO SELECTION INFO
            P_NOCOVE AS CHECKBOX DEFAULT ' ', "NO COVER PAGE
            P_NONEWP AS CHECKBOX DEFAULT ' ', "NO NEW PAGE
            P_NOLINF AS CHECKBOX DEFAULT 'X', "NO PRINT LIST INFO
            P_RESERV TYPE I.                  "NO OF FOOTER LINE

INITIALIZATION.
G_REPID = SY-REPID.
PERFORM PRINT_BUILD    USING GS_PRINT.      "Print PARAMETERS

START-OF-SELECTION.
* TEST DATA
MOVE 'TEST1' TO ITAB1-FIELD1.
MOVE 'TEST1' TO ITAB1-FIELD2.
MOVE '10.00' TO ITAB1-FIELD3.
APPEND ITAB1.

MOVE 'TEST2' TO ITAB1-FIELD1.
MOVE 'TEST2' TO ITAB1-FIELD2.
MOVE '20.00' TO ITAB1-FIELD3.
APPEND ITAB1.

DO 50 TIMES.
  APPEND ITAB1.
ENDDO.

END-OF-SELECTION.

PERFORM BUILD.
PERFORM EVENTTAB_BUILD CHANGING GT_EVENTS.
PERFORM COMMENT_BUILD  CHANGING GT_LIST_TOP_OF_PAGE.
PERFORM CALL_ALV.

FORM BUILD.
* DATA FIELD CATALOG
* Explain Field Description to ALV
DATA: FIELDCAT_IN TYPE SLIS_FIELDCAT_ALV.

CLEAR FIELDCAT_IN.
FIELDCAT_LN-FIELDNAME = 'FIELD1'.
FIELDCAT_LN-TABNAME   = 'ITAB1'.
*FIELDCAT_LN-NO_OUT    = 'X'.  "FIELD NOT DISPLAY, CHOOSE FROM LAYOUT
FIELDCAT_LN-KEY       = ' '.   "SUBTOTAL KEY
FIELDCAT_LN-NO_OUT    = ' '.
FIELDCAT_LN-SELTEXT_L = 'HEAD1'.
APPEND FIELDCAT_LN TO GT_FIELDCAT.

CLEAR FIELDCAT_IN.
FIELDCAT_LN-FIELDNAME = 'FIELD2'.
FIELDCAT_LN-TABNAME   = 'ITAB1'.
FIELDCAT_LN-NO_OUT    = 'X'.
FIELDCAT_LN-SELTEXT_L = 'HEAD2'.
APPEND FIELDCAT_LN TO GT_FIELDCAT.

CLEAR FIELDCAT_IN.
FIELDCAT_LN-FIELDNAME     = 'FIELD3'.
FIELDCAT_LN-TABNAME       = 'ITAB1'.
FIELDCAT_LN-REF_FIELDNAME = 'MENGE'. "<- REF FIELD IN THE DICTIONNARY
FIELDCAT_LN-REF_TABNAME   = 'MSEG'.  "<- REF TABLE IN THE DICTIONNARY
FIELDCAT_LN-NO_OUT        = ' '.
FIELDCAT_LN-DO_SUM        = 'X'.   "SUM UPON DISPLAY
APPEND FIELDCAT_LN TO GT_FIELDCAT.

* DATA SORTING AND SUBTOTAL
DATA: GS_SORT TYPE SLIS_SORTINFO_ALV.

CLEAR GS_SORT.
GS_SORT-FIELDNAME = 'FIELD1'.
GS_SORT-SPOS      = 1.
GS_SORT-UP        = 'X'.
GS_SORT-SUBTOT    = 'X'.
APPEND GS_SORT TO GT_SORT.

CLEAR GS_SORT.
GS_SORT-FIELDNAME = 'FIELD2'.
GS_SORT-SPOS      = 2.
GS_SORT-UP        = 'X'.
*GS_SORT-SUBTOT    = 'X'.
APPEND GS_SORT TO GT_SORT.

ENDFORM.

FORM CALL_ALV.
* ABAP List Viewer
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
* I_INTERFACE_CHECK = ' '
* I_BYPASSING_BUFFER =
* I_BUFFER_ACTIVE = ' '
I_CALLBACK_PROGRAM = G_REPID
* I_CALLBACK_PF_STATUS_SET = ' '
* I_CALLBACK_USER_COMMAND = ' '
I_STRUCTURE_NAME = 'ITAB1'
IS_LAYOUT =  GS_LAYOUT
IT_FIELDCAT = GT_FIELDCAT[]
* IT_EXCLUDING =
* IT_SPECIAL_GROUPS =
  IT_SORT = GT_SORT[]
* IT_FILTER =
* IS_SEL_HIDE =
* I_DEFAULT = 'X'
* I_SAVE = ' '
* IS_VARIANT =
  IT_EVENTS = GT_EVENTS[]
* IT_EVENT_EXIT =
  IS_PRINT = GS_PRINT
* IS_REPREP_ID =
* I_SCREEN_START_COLUMN = 0
* I_SCREEN_START_LINE = 0
* I_SCREEN_END_COLUMN = 0
* I_SCREEN_END_LINE = 0
* IMPORTING
* E_EXIT_CAUSED_BY_CALLER =
* ES_EXIT_CAUSED_BY_USER =
TABLES
T_OUTTAB = ITAB1
EXCEPTIONS
PROGRAM_ERROR = 1
OTHERS = 2.
ENDFORM.

* HEADER FORM
FORM EVENTTAB_BUILD CHANGING LT_EVENTS TYPE SLIS_T_EVENT.
CONSTANTS:
GC_FORMNAME_TOP_OF_PAGE TYPE SLIS_FORMNAME VALUE 'TOP_OF_PAGE'.
*GC_FORMNAME_END_OF_PAGE TYPE SLIS_FORMNAME VALUE 'END_OF_PAGE'.

  DATA: LS_EVENT TYPE SLIS_ALV_EVENT.

  CALL FUNCTION 'REUSE_ALV_EVENTS_GET'
       EXPORTING
            I_LIST_TYPE = 0
       IMPORTING
            ET_EVENTS   = LT_EVENTS.

  READ TABLE LT_EVENTS WITH KEY NAME =  SLIS_EV_TOP_OF_PAGE
                           INTO LS_EVENT.
  IF SY-SUBRC = 0.
    MOVE GC_FORMNAME_TOP_OF_PAGE TO LS_EVENT-FORM.
    APPEND LS_EVENT TO LT_EVENTS.
  ENDIF.

* define END_OF_PAGE event
* READ TABLE LT_EVENTS WITH KEY NAME =  SLIS_EV_END_OF_PAGE
*                          INTO LS_EVENT.
* IF SY-SUBRC = 0.
*   MOVE GC_FORMNAME_END_OF_PAGE TO LS_EVENT-FORM.
*   APPEND LS_EVENT TO LT_EVENTS.
* ENDIF.
ENDFORM.

FORM COMMENT_BUILD CHANGING GT_TOP_OF_PAGE TYPE SLIS_T_LISTHEADER.
  DATA: GS_LINE TYPE SLIS_LISTHEADER.

  CLEAR GS_LINE.
  GS_LINE-TYP  = 'H'.
  GS_LINE-INFO = 'HEADER 1'.
  APPEND GS_LINE TO GT_TOP_OF_PAGE.

  CLEAR GS_LINE.
  GS_LINE-TYP  = 'S'.
  GS_LINE-KEY  = 'STATUS 1'.
  GS_LINE-INFO = 'INFO 1'.
  APPEND GS_LINE TO GT_TOP_OF_PAGE.
  GS_LINE-KEY  = 'STATUS 2'.
  GS_LINE-INFO = 'INFO 2'.
  APPEND GS_LINE TO GT_TOP_OF_PAGE.

* CLEAR GS_LINE.
* GS_LINE-TYP  = 'A'.
*
* GS_LINE-INFO = 'ACTION'.
* APPEND GS_LINE TO  GT_TOP_OF_PAGE.

ENDFORM.

FORM TOP_OF_PAGE.
  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
       EXPORTING
            IT_LIST_COMMENTARY = GT_LIST_TOP_OF_PAGE.
  WRITE: SY-DATUM, 'Page No', SY-PAGNO LEFT-JUSTIFIED.
ENDFORM.

FORM END_OF_PAGE.
  WRITE at (sy-linsz) sy-pagno CENTERED.
ENDFORM.

* PRINT SETTINGS
FORM PRINT_BUILD USING LS_PRINT TYPE SLIS_PRINT_ALV.
  LS_PRINT-PRINT              = P_PRINT.  "PRINT IMMEDIATE
  LS_PRINT-NO_PRINT_SELINFOS  = P_NOSINF. "NO SELECTION INFO
  LS_PRINT-NO_COVERPAGE       = P_NOCOVE. "NO COVER PAGE
  LS_PRINT-NO_NEW_PAGE        = P_NONEWP.
  LS_PRINT-NO_PRINT_LISTINFOS = P_NOLINF. "NO PRINT LIST INFO
  LS_PRINT-RESERVE_LINES      = P_RESERV.
ENDFORM.

*END OF ZALV PROGRAM

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