Display multiple list under same list using FM REUSE_ALV_BLOCK_LIST_DISPLAY

Display Multiple lists under a same list display using FM: "REUSE_ALV_BLOCK_LIST_DISPLAY". We have to call four function modules in sequence to achieve this:
1)REUSE_ALV_BLOCK_LIST_INIT
2)REUSE_ALV_BLOCK_LIST_APPEND
3)then again REUSE_ALV_BLOCK_LIST_APPEND
4)At last REUSE_ALV_BLOCK_LIST_DISPLAY

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*&---------------------------------------------------------------------*
*& Report ZZSOURAV_MULTIPLE_LIST
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT zzsourav_multiple_list.
TYPE-POOLS:slis.

DATA:
v_repid TYPE syrepid,
i_spfli TYPE STANDARD TABLE OF spfli INITIAL SIZE 0,
i_scarr TYPE STANDARD TABLE OF scarr INITIAL SIZE 0,
i_fcat1 TYPE slis_t_fieldcat_alv,
i_fcat2 TYPE slis_t_fieldcat_alv,
wa_layout1 TYPE slis_layout_alv,
wa_layout2 TYPE slis_layout_alv,
i_events1 TYPE slis_t_event,
i_events2 TYPE slis_t_event.

INITIALIZATION.
v_repid = sy-repid.

START-OF-SELECTION.

SELECT * FROM spfli
INTO TABLE i_spfli.
IF sy-subrc <> 0.
MESSAGE i001(00) WITH 'No data found!'.
LEAVE LIST-PROCESSING.
ENDIF.

SELECT * FROM scarr
INTO TABLE i_scarr.

IF sy-subrc <> 0.
MESSAGE i001(00) WITH 'No data found!'.
LEAVE LIST-PROCESSING.
ENDIF.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = v_repid
i_internal_tabname = 'I_SCARR'
i_structure_name = 'SCARR'
i_client_never_display = 'X'
* I_INCLNAME =
* I_BYPASSING_BUFFER =
* I_BUFFER_ACTIVE =
CHANGING
ct_fieldcat = i_fcat1
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3
.
IF sy-subrc <> 0.
MESSAGE i001(00) WITH 'Unable to populate field-catalog!'.
LEAVE LIST-PROCESSING.
ENDIF.

CALL FUNCTION 'REUSE_ALV_FIELDCATALOG_MERGE'
EXPORTING
i_program_name = v_repid
i_internal_tabname = 'I_SPFLI'
i_structure_name = 'SPFLI'
i_client_never_display = 'X'
* I_INCLNAME =
* I_BYPASSING_BUFFER =
* I_BUFFER_ACTIVE =
CHANGING
ct_fieldcat = i_fcat2
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3
.
IF sy-subrc <> 0.
MESSAGE i001(00) WITH 'Unable to populate field-catalog!'.
LEAVE LIST-PROCESSING.
ENDIF.

END-OF-SELECTION.
wa_layout1-colwidth_optimize = wa_layout2-colwidth_optimize = 'X'.
wa_layout1-zebra = wa_layout2-zebra = 'X'.

CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_INIT'
EXPORTING
i_callback_program = v_repid
* I_CALLBACK_PF_STATUS_SET = ' '
* I_CALLBACK_USER_COMMAND = ' '
* IT_EXCLUDING =
.


CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_APPEND'
EXPORTING
is_layout = wa_layout1
it_fieldcat = i_fcat1
i_tabname = 'I_SCARR'
it_events = i_events1
* IT_SORT =
* I_TEXT = ' '
TABLES
t_outtab = i_scarr
EXCEPTIONS
program_error = 1
maximum_of_appends_reached = 2
OTHERS = 3
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.


CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_APPEND'
EXPORTING
is_layout = wa_layout2
it_fieldcat = i_fcat2
i_tabname = 'I_SPFLI'
it_events = i_events2
* IT_SORT =
* I_TEXT = ' '
TABLES
t_outtab = i_spfli
EXCEPTIONS
program_error = 1
maximum_of_appends_reached = 2
OTHERS = 3
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

CALL FUNCTION 'REUSE_ALV_BLOCK_LIST_DISPLAY'
* EXPORTING
* I_INTERFACE_CHECK = ' '
* IS_PRINT =
* 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 =
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.

The Output:

How to get the updated data from a editable ALV (CL_GUI_ALV_GRID)

This program demonstrates how to get the updated data when a button is clicked in the GUI toolbar or ALV toolbar. The ALV is created using CL_GUI_ALV_GRID.

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*&---------------------------------------------------------------------*
*& Report ZZSOURAV_REFRESH_ALV
*&
*&---------------------------------------------------------------------*
*&
*&
*&---------------------------------------------------------------------*

REPORT zzsourav_refresh_alv.
DATA: ok_code TYPE syucomm.
*----------------------------------------------------------------------*
* CLASS main DEFINITION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS main DEFINITION.
PUBLIC SECTION.
DATA: i_sbook TYPE STANDARD TABLE OF sbook INITIAL SIZE 0,
i_sbook_old TYPE STANDARD TABLE OF sbook INITIAL SIZE 0.

METHODS:constructor,
handle_toolbar FOR EVENT toolbar OF cl_gui_alv_grid
IMPORTING e_object e_interactive,
handle_user_command FOR EVENT
user_command OF cl_gui_alv_grid
IMPORTING e_ucomm,
check_changed_data.
PROTECTED SECTION.


PRIVATE SECTION.
TYPE-POOLS: icon.
DATA:container TYPE REF TO cl_gui_custom_container,
oref_alv TYPE REF TO cl_gui_alv_grid,
wa_layout TYPE lvc_s_layo,
i_fieldcatalog TYPE lvc_t_fcat.
METHODS:get_field_catalog,get_layout.
ENDCLASS. "main DEFINITION
*----------------------------------------------------------------------*
* CLASS main IMPLEMENTATION
*----------------------------------------------------------------------*
*
*----------------------------------------------------------------------*
CLASS main IMPLEMENTATION.
METHOD constructor.

SELECT * FROM sbook INTO TABLE i_sbook
UP TO 50 ROWS.
i_sbook_old[] = i_sbook[].

CREATE OBJECT container
EXPORTING
* parent =
container_name = 'CONT1'
* style =
* lifetime = lifetime_default
repid = sy-repid
dynnr = '0100'
* no_autodef_progid_dynnr =
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
lifetime_dynpro_dynpro_link = 5
OTHERS = 6
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.


CREATE OBJECT oref_alv
EXPORTING
* i_shellstyle = 0
* i_lifetime =
i_parent = container
* i_appl_events = space
* i_parentdbg =
* i_applogparent =
* i_graphicsparent =
* i_name =
* i_fcat_complete = space
EXCEPTIONS
error_cntl_create = 1
error_cntl_init = 2
error_cntl_link = 3
error_dp_create = 4
OTHERS = 5
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

CALL METHOD me->get_field_catalog.
CALL METHOD me->get_layout.

CALL METHOD oref_alv->set_table_for_first_display
EXPORTING
* i_buffer_active =
* i_bypassing_buffer =
* i_consistency_check =
* i_structure_name =
* is_variant =
* i_save =
* i_default = 'X'
is_layout = wa_layout
* is_print =
* it_special_groups =
* it_toolbar_excluding =
* it_hyperlink =
* it_alv_graphics =
* it_except_qinfo =
* ir_salv_adapter =
CHANGING
it_outtab = i_sbook
it_fieldcatalog = i_fieldcatalog
* it_sort =
* it_filter =
EXCEPTIONS
invalid_parameter_combination = 1
program_error = 2
too_many_lines = 3
OTHERS = 4
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
SET HANDLER me->handle_toolbar FOR oref_alv.
SET HANDLER me->handle_user_command FOR oref_alv.

CALL METHOD oref_alv->set_toolbar_interactive.

ENDMETHOD. "constructor
METHOD get_layout.
wa_layout-cwidth_opt = 'X'.
ENDMETHOD. "get_layout
METHOD get_field_catalog.
FIELD-SYMBOLS: <lf1> TYPE lvc_s_fcat.

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
* I_BUFFER_ACTIVE =
i_structure_name = 'SBOOK'
i_client_never_display = 'X'
* I_BYPASSING_BUFFER =
i_internal_tabname = 'I_SBOOK'
CHANGING
ct_fieldcat = i_fieldcatalog
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3
.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.

LOOP AT i_fieldcatalog ASSIGNING <lf1>.
IF <lf1>-fieldname = 'SMOKER'.
<
lf1>-edit = 'X'. " REUSE_ALV_GRID_DISPLAY
ENDIF.
ENDLOOP.
ENDMETHOD. "get_field_catalog
METHOD handle_toolbar.
DATA: l_toolbar TYPE stb_button.
CLEAR l_toolbar.
* append an icon to show booking table
CLEAR l_toolbar.
MOVE 'SAVE' TO l_toolbar-function.
MOVE icon_system_save TO l_toolbar-icon.
MOVE 'Save' TO l_toolbar-quickinfo.
MOVE 'Save' TO l_toolbar-text.
MOVE ' ' TO l_toolbar-disabled.
APPEND l_toolbar TO e_object->mt_toolbar.

ENDMETHOD. "handle_toolbar
METHOD handle_user_command.
CASE e_ucomm.
WHEN 'SAVE'.
IF i_sbook[] <> i_sbook_old[].
MESSAGE i001(00) WITH 'You have changed some data'.
ELSE.
MESSAGE i001(00) WITH 'No data changed'.
ENDIF.
ENDCASE.
ENDMETHOD. "user_command
METHOD check_changed_data.

CALL METHOD oref_alv->check_changed_data
* IMPORTING
* e_valid =
* CHANGING
* c_refresh = 'X'
.


ENDMETHOD. "CHECK_CHANGED_DATA
ENDCLASS. "main IMPLEMENTATION

START-OF-SELECTION.

DATA: oref_main TYPE REF TO main.
CREATE OBJECT oref_main.

CALL SCREEN 0100.
*&---------------------------------------------------------------------*
*& Module STATUS_0100 OUTPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE status_0100 OUTPUT.
SET PF-STATUS 'S0100'.
* SET TITLEBAR 'xxx'.

ENDMODULE. " STATUS_0100 OUTPUT
*&---------------------------------------------------------------------*
*& Module USER_COMMAND_0100 INPUT
*&---------------------------------------------------------------------*
* text
*----------------------------------------------------------------------*
MODULE user_command_0100 INPUT.

CASE ok_code.
WHEN 'BACK'.

SET SCREEN 00.
LEAVE SCREEN.
WHEN 'SAVE'.
" Check this part if the button is SAP standard toolbar
CALL METHOD oref_main->check_changed_data.
IF oref_main->i_sbook[] NE oref_main->i_sbook_old[].
MESSAGE i001(00) WITH 'You have changed some data'.
ELSE.
MESSAGE i001(00) WITH 'No data changed'.
ENDIF.

ENDCASE.
ENDMODULE. " USER_COMMAND_0100 INPUT


Initial ALV display with editable column:



When any of the "SAVE" button is clicked but no changed data:



When something is changed and any of the "SAVE" button is clicked: