An SAP Consultant

REPORT  ZALV_CHECKBOX.
DATA:
  BEGIN OF W_EMP ,
    CHECKBOX TYPE C ,  "declare one variable for Checkbox
    STATUS   TYPE CHAR3,
    PERNR    TYPE PA0001-PERNR,
    ENDDA    TYPE PA0001-ENDDA,
    BEGDA    TYPE PA0001-BEGDA,
    ENAME    TYPE PA0001-ENAME,
  END OF W_EMP,
I_EMP LIKE W_EMP OCCURS 0 WITH HEADER LINE.
*&---------------------------------------------------------------------*
* ALV Declarations
*----------------------------------------------------------------------*
* Types Pools
TYPE-POOLS:
SLIS.
* Types
TYPES:
    T_FIELDCAT         TYPE SLIS_FIELDCAT_ALV,
    T_EVENTS           TYPE SLIS_ALV_EVENT,
    T_LAYOUT           TYPE SLIS_LAYOUT_ALV.
* Workareas
DATA:
    W_FIELDCAT         TYPE T_FIELDCAT,
    W_EVENTS           TYPE T_EVENTS,
    W_LAYOUT           TYPE T_LAYOUT.
* Internal Tables
DATA:
    I_FIELDCAT         TYPE STANDARD TABLE OF T_FIELDCAT,
    I_EVENTS           TYPE STANDARD TABLE OF T_EVENTS.

START-OF-SELECTION.

  PERFORM GET_DATA.
  PERFORM BUILD_FIELD.
  PERFORM BUILD_EVENTS.
  PERFORM BUILD_LAYOUT.
  PERFORM DISPLAY_DATA.

*&---------------------------------------------------------------------*
*&      Form  get_data
*&---------------------------------------------------------------------*
FORM GET_DATA .

  SELECT  PERNR
  ENDDA
  BEGDA
  ENAME
  FROM PA0001
  INTO CORRESPONDING FIELDS OF TABLE I_EMP
  UP TO 20 ROWS.

ENDFORM.                    " get_data
*&---------------------------------------------------------------------*
*&      Form  build_field
*&---------------------------------------------------------------------*
FORM BUILD_FIELD .

  CLEAR W_FIELDCAT.
  CLEAR I_FIELDCAT.

  PERFORM BUILD_FCAT USING:
  "Field      Itab    Text
  'CHECKBOX' 'I_EMP'  ' ',
  'STATUS'   'I_EMP'  'STATUS',
  'PERNR'    'I_EMP'  'PERNR',
  'ENDDA'    'I_EMP'  'ENDDA',
  'BEGDA'    'I_EMP'  'BEGDA',
  'ENAME'    'I_EMP'  'ENAME'.

ENDFORM.                    "BUILD_FIELD

*&---------------------------------------------------------------------*
*&      Form  BUILD_FCAT
*&---------------------------------------------------------------------*
FORM BUILD_FCAT USING L_FIELD L_TAB L_TEXT.

  W_FIELDCAT-FIELDNAME = L_FIELD.
  W_FIELDCAT-TABNAME   = L_TAB.
  W_FIELDCAT-SELTEXT_M = L_TEXT.
  IF L_FIELD = 'CHECKBOX'.
    W_FIELDCAT-CHECKBOX  = 'X'.        "Setting Check box
    W_FIELDCAT-EDIT      = 'X'.
  ENDIF.
  APPEND W_FIELDCAT TO I_FIELDCAT.
  CLEAR W_FIELDCAT.
ENDFORM.                    " build_field
*&---------------------------------------------------------------------*
*&      Form  display_data
*&---------------------------------------------------------------------*
FORM DISPLAY_DATA .
  DATA:L_PROGRAM TYPE SY-REPID.
  L_PROGRAM = SY-REPID.
  CALL FUNCTION 'REUSE_ALV_GRID_DISPLAY'
    EXPORTING
      I_CALLBACK_PROGRAM = L_PROGRAM
      IS_LAYOUT          = W_LAYOUT
      IT_FIELDCAT        = I_FIELDCAT
      IT_EVENTS          = I_EVENTS
    TABLES
      T_OUTTAB           = I_EMP
    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_data
*&---------------------------------------------------------------------*
*&      Form  build_events
*&---------------------------------------------------------------------*
FORM BUILD_EVENTS .

  CLEAR I_EVENTS.
  CLEAR I_EVENTS.

  W_EVENTS-FORM = 'TOP_OF_PAGE'. "Name of the callback subroutine for top_of_page event.
  W_EVENTS-NAME = 'TOP_OF_PAGE'. "Name of the event
  APPEND W_EVENTS TO I_EVENTS.
  CLEAR W_EVENTS.
ENDFORM.                    " build_events
*&---------------------------------------------------------------------*
"      Form  build_layout
*&---------------------------------------------------------------------*
FORM BUILD_LAYOUT .

  W_LAYOUT-INFO_FIELDNAME   = 'STATUS'. "Status field defined in the internal tables

ENDFORM.                    " build_layout
*----------------------------------------------------------------------*
" FORM    :  top_of_page
*----------------------------------------------------------------------*
FORM TOP_OF_PAGE.
  DATA :
  I_HEADER TYPE SLIS_T_LISTHEADER,
  W_HEADER LIKE LINE OF I_HEADER.

  DATA:L_DATE1 TYPE DATUM,
  L_DATE2 TYPE DATUM.

  W_HEADER-TYP = 'S'.
  W_HEADER-INFO = SY-TITLE.
  APPEND W_HEADER TO I_HEADER.
  CLEAR W_HEADER.

  W_HEADER-TYP = 'A'.
  W_HEADER-INFO = 'GRID Display TOP OF PAGE'.
  APPEND W_HEADER TO I_HEADER.
  CLEAR W_HEADER.

  CALL FUNCTION 'REUSE_ALV_COMMENTARY_WRITE'
    EXPORTING
      IT_LIST_COMMENTARY = I_HEADER
      I_LOGO             = 'ENJOYSAP_LOGO'.

ENDFORM. "top_of_page