ABAP - Capture Single & Multiple Row Selection In ALV Report Program

The follow program demonstrates how to capture which rows of the ALV grid the user has selected.

Changes required from a basic ALV grid include adding a new field to ALV grid data table(it_ekko-sel) and
adding an entry to the layout control table (gd_layout-box_fieldname = 'SEL'). Please note you need to use
the SHIFT and CONTROL keys to select multiple rows!

*&---------------------------------------------------------------------*
*& Report ZDEMO_ALVGRID_SELROW *
*& *
*&---------------------------------------------------------------------*
*& *
*& Example of a simple ALV Grid Report *
*& ................................... *
*& *
*& The basic ALV grid, Enhanced to display capture each row a user has *
*& selected *
*&---------------------------------------------------------------------*

REPORT zdemo_alvgrid_selrow .

TABLES: ekko.
type-pools: slis. "ALV Declarations

*Data Declaration
*----------------

TYPES: BEGIN OF t_ekko,
SEl, "stores which row user has selected
ebeln TYPE ekpo-ebeln,
ebelp TYPE ekpo-ebelp,
statu TYPE ekpo-statu,
aedat TYPE ekpo-aedat,
matnr TYPE ekpo-matnr,
menge TYPE ekpo-menge,
meins TYPE ekpo-meins,
netpr TYPE ekpo-netpr,
peinh TYPE ekpo-peinh,
END OF t_ekko.

DATA: it_ekko TYPE STANDARD TABLE OF t_ekko INITIAL SIZE 0,
wa_ekko TYPE t_ekko.
*ALV data declarations

data: fieldcatalog type slis_t_fieldcat_alv with header line,
gd_tab_group type slis_t_sp_group_alv,
gd_layout type slis_layout_alv,
gd_repid like sy-repid.
************************************************************************

*Start-of-selection.
START-OF-SELECTION.
perform data_retrieval.
perform build_fieldcatalog.
perform build_layout.
perform display_alv_report.

*&---------------------------------------------------------------------*
*& Form BUILD_FIELDCATALOG
*&---------------------------------------------------------------------*
* Build Fieldcatalog for ALV Report
*----------------------------------------------------------------------*
form build_fieldcatalog.
* There are a number of ways to create a fieldcat.
* For the purpose of this example i will build the fieldcatalog manualy
* by populating the internal table fields individually and then
* appending the rows. This method can be the most time consuming but can
* also allow you more control of the final product.
* Beware though, you need to ensure that all fields required are
* populated. When using some of functionality available via ALV, such as
* total. You may need to provide more information than if you were
* simply displaying the result
* I.e. Field type may be required in-order for
* the 'TOTAL' function to work.

fieldcatalog-fieldname = 'EBELN'.
fieldcatalog-seltext_m = 'Purchase Order'.
fieldcatalog-col_pos = 0.
fieldcatalog-outputlen = 10.
fieldcatalog-emphasize = 'X'.
fieldcatalog-key = 'X'.
* fieldcatalog-do_sum = 'X'.
* fieldcatalog-no_zero = 'X'.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'EBELP'.
fieldcatalog-seltext_m = 'PO Item'.
fieldcatalog-col_pos = 1.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'STATU'.
fieldcatalog-seltext_m = 'Status'.
fieldcatalog-col_pos = 2.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'AEDAT'.
fieldcatalog-seltext_m = 'Item change date'.
fieldcatalog-col_pos = 3.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'MATNR'.
fieldcatalog-seltext_m = 'Material Number'.
fieldcatalog-col_pos = 4.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'MENGE'.
fieldcatalog-seltext_m = 'PO quantity'.
fieldcatalog-col_pos = 5.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'MEINS'.
fieldcatalog-seltext_m = 'Order Unit'.
fieldcatalog-col_pos = 6.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'NETPR'.
fieldcatalog-seltext_m = 'Net Price'.
fieldcatalog-col_pos = 7.
fieldcatalog-outputlen = 15.
fieldcatalog-do_sum = 'X'. "Display column total
fieldcatalog-datatype = 'CURR'.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

fieldcatalog-fieldname = 'PEINH'.
fieldcatalog-seltext_m = 'Price Unit'.
fieldcatalog-col_pos = 8.
append fieldcatalog to fieldcatalog.
clear fieldcatalog.

endform. " BUILD_FIELDCATALOG

*&---------------------------------------------------------------------*
*& Form BUILD_LAYOUT
*&---------------------------------------------------------------------*
* Build layout for ALV grid report
*----------------------------------------------------------------------*
form build_layout.
gd_layout-box_fieldname = 'SEL'.
"set field name to store row selection
gd_layout-edit = 'X'. "makes whole ALV table editable
gd_layout-zebra = 'X'.
endform. " BUILD_LAYOUT

*&---------------------------------------------------------------------*
*& Form DISPLAY_ALV_REPORT
*&---------------------------------------------------------------------*
* Display report using ALV grid
*----------------------------------------------------------------------*
form display_alv_report.
gd_repid = sy-repid.
call function 'REUSE_ALV_GRID_DISPLAY'
exporting
i_callback_program = gd_repid
* i_callback_top_of_page = 'TOP-OF-PAGE' "see FORM
i_callback_user_command = 'USER_COMMAND'
* i_grid_title = outtext
is_layout = gd_layout
it_fieldcat = fieldcatalog[]
* it_special_groups = gd_tabgroup
* IT_EVENTS = GT_XEVENTS
i_save = 'X'
* is_variant = z_template
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 DATA_RETRIEVAL
*&---------------------------------------------------------------------*
* Retrieve data form EKPO table and populate itab it_ekko
*----------------------------------------------------------------------*
form data_retrieval.
select ebeln ebelp statu aedat matnr menge meins netpr peinh
up to 10 rows
from ekpo
into corresponding fields of table it_ekko.
endform. " DATA_RETRIEVAL

*------------------------------------------------------------------*
* FORM USER_COMMAND *
*------------------------------------------------------------------*
* --> R_UCOMM *
* --> RS_SELFIELD *
*------------------------------------------------------------------*
FORM user_command USING r_ucomm LIKE sy-ucomm
rs_selfield TYPE slis_selfield.
* Check function code
CASE r_ucomm.
WHEN '&IC1'.
* Check field clicked on within ALVgrid report
IF rs_selfield-fieldname = 'EBELN'.

* Read data table, using index of row user clicked on
READ TABLE it_ekko INTO wa_ekko INDEX rs_selfield-tabindex.

* Set parameter ID for transaction screen field
SET PARAMETER ID 'BES' FIELD wa_ekko-ebeln.

* Sxecute transaction ME23N, and skip initial data entry screen

CALL TRANSACTION 'ME23N' AND SKIP FIRST SCREEN.
ENDIF.

WHEN '&DATA_SAVE'. "user presses SAVE
loop at it_ekko into wa_ekko.
if wa_ekko-sel EQ 'X'.

* Process records that have been selected
endif.
endloop.

ENDCASE.
ENDFORM.

ALSO READ:

- Coloring A Row & Column In ALV Display Using OOPS Concept.

- Create Unique Handle For ALV Layout (Variant).

- Customizing Toolbar In ALV Tree Using ABAP OO.

- Dropdown in ALV Grid Display.

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