1. *&---------------------------------------------------------------------*
*& Report ZALV_D1
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*
REPORT ZALV_D1.
TYPE-POOLS: slis.
* INTERNAL TABLES/WORK AREAS/VARIABLES *
*******************************************************************
DATA: i_fieldcat TYPE slis_t_fieldcat_alv,
i_index TYPE STANDARD TABLE OF i WITH HEADER LINE,
w_field TYPE slis_fieldcat_alv,
p_table LIKE dd02l-tabname,
dy_table TYPE REF TO data,
dy_tab TYPE REF TO data,
dy_line TYPE REF TO data.
* FIELD-SYMBOLS *
*******************************************************************
FIELD-SYMBOLS: <dyn_table> TYPE STANDARD TABLE,
<dyn_wa> TYPE ANY,
<dyn_field> TYPE ANY,
<dyn_tab_temp> TYPE STANDARD TABLE.
* SELECTION SCREEN *
*******************************************************************
PARAMETERS: tabname(30) TYPE c,
lines(5) TYPE n.
* START-OF-SELECTION *
*******************************************************************
START-OF-SELECTION.
p_table = tabname.
* entered in the selection screen
CREATE DATA dy_table TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_table->* TO <dyn_table>.
IF sy-subrc <> 0.
MESSAGE i000(z_zzz_ca_messages) WITH ' No table found'. LEAVE TO LIST-
PROCESSING.
ENDIF.
* Create workarea for the table
CREATE DATA dy_line LIKE LINE OF <dyn_table>.
ASSIGN dy_line->* TO <dyn_wa>.
CREATE DATA dy_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN dy_tab->* TO <dyn_tab_temp>. SORT i_fieldcat BY col_pos.
SELECT * FROM (p_table)
INTO TABLE <dyn_table>
UP TO lines ROWS. REFRESH <dyn_tab_temp>.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
i_callback_user_command = 'USER_COMMAND'
i_callback_pf_status_set = 'SET_PF_STATUS'
TABLES
t_outtab = <dyn_table>
EXCEPTIONS
program_error = 1
OTHERS = 2. IF sy-subrc <> 0. ENDIF.
*& Form SET_PF_STATUS
*&-----------------------------------------------------------------*

2. * Setting custom PF-Status
*------------------------------------------------------------------*
* -->RT_EXTAB Excluding table
*------------------------------------------------------------------*
FORM set_pf_status USING rt_extab TYPE slis_t_extab. SET PF-STATUS
'Z_STANDARD'.ENDFORM.
*& Form user_command
*&-----------------------------------------------------------------*
* Handling custom function codes
*------------------------------------------------------------------*
* -->R_UCOMM Function code value
* -->RS_SELFIELD Info. of cursor position in ALV
*------------------------------------------------------------------*
FORM user_command USING r_ucomm LIKE sy-ucomm
rs_selfield TYPE slis_selfield.
DATA: li_tab TYPE REF TO data,
l_line TYPE REF TO data.
FIELD-SYMBOLS:<l_tab> TYPE table,
<l_wa> TYPE ANY." Create table
CREATE DATA li_tab TYPE STANDARD TABLE OF (p_table).
ASSIGN li_tab->* TO <l_tab>." Create workarea
CREATE DATA l_line LIKE LINE OF <l_tab>.
ASSIGN l_line->* TO <l_wa>. CASE r_ucomm.
WHEN '&IC1'.
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX
rs_selfield-tabindex. IF sy-subrc = 0.
APPEND <dyn_wa> TO <l_tab>.
CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = 'Z_DEMO_PDF_JG'
i_structure_name = p_table
CHANGING
ct_fieldcat = i_fieldcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc = 0.
w_field-input = 'X'. MODIFY i_fieldcat FROM w_field TRANSPORTING
input
WHERE key IS INITIAL. ENDIF.
CALL FUNCTION 'REUSE_ALV_LIST_DISPLAY'
EXPORTING
i_callback_program = sy-repid
i_structure_name = p_table
it_fieldcat = i_fieldcat
i_screen_start_column = 10
i_screen_start_line = 15
i_screen_end_column = 200
i_screen_end_line = 20
TABLES
t_outtab = <l_tab>
EXCEPTIONS
program_error = 1
OTHERS = 2. IF sy-subrc = 0.
READ TABLE <l_tab> INDEX 1 INTO <l_wa>.
* and populate it in an internal table for future
* action
IF sy-subrc = 0 AND <dyn_wa> <> <l_wa>.
<dyn_wa> = <l_wa>.
i_index = rs_selfield-tabindex.
APPEND i_index.
ENDIF.

3. ENDIF. ENDIF.
WHEN 'SAVE'.
SORT i_index.
DELETE ADJACENT DUPLICATES FROM i_index. LOOP AT i_index.
* and populate these changes in another internal table
READ TABLE <dyn_table> ASSIGNING <dyn_wa> INDEX i_index.
IF sy-subrc = 0.
APPEND <dyn_wa> TO <dyn_tab_temp>.
ENDIF. ENDLOOP.
CALL FUNCTION 'ENQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table
EXCEPTIONS
foreign_lock = 1
system_failure = 2
OTHERS = 3. IF sy-subrc = 0.
MODIFY (p_table) FROM TABLE <dyn_tab_temp>. REFRESH <dyn_tab_temp>.
CALL FUNCTION 'DEQUEUE_E_TABLE'
EXPORTING
mode_rstable = 'E'
tabname = p_table. ENDIF.
ENDCASE. rs_selfield-refresh = 'X'.ENDFORM. "user_command