Display total text in ALV using class

By Joyjit Ghosh,
Kolkata, India.

We had one requirement where we need to display Total text in ALV grid using oops concept. To achieve it we did following things:

1. Added one extra field in the ALV output table and populated it with a constant value (This is nothing but the text that need to be displayed as Total text) for all the records.

2. Hide this field in field catalog level

3. Populated the sort table for ALV with this field and enable subtotal display for it.

4. Hide total line display in ALV by passing appropriate value in the Layout structure.

As this extra field contains constant value for all the records so subtotal on it is equivalent to total for rest of the fields.

Ex:

Code:

*&---------------------------------------------------------------------*
*& Report Z_ALV_DEMO_TOTAL_TEXT
*&---------------------------------------------------------------------*
*&---------------------------------------------------------------------*

REPORT z_alv_demo_total_text.

* Type declaration for final table to display the output
TYPES: BEGIN OF ty_mara,

srno TYPE char40, " Storing the total text

matnr TYPE matnr, " Material

ersda TYPE ersda, " Creation date

ernam TYPE ernam, " Created by

laeda TYPE laeda, " Last change date

aenam TYPE aenam, " Last change by

vpsta TYPE vpsta, " Maintenance status

brgew TYPE brgew, " Gross weight

ntgew TYPE ntgew, " Net weight

gewei TYPE gewei, " Weight Unit

END OF ty_mara.

* Type declaration for table storing temp. data
TYPES: BEGIN OF ty_mara_tmp,

matnr TYPE matnr, " Material

ersda TYPE ersda, " Creation date

ernam TYPE ernam, " Created by

laeda TYPE laeda, " Last change date

aenam TYPE aenam, " Last change by

vpsta TYPE vpsta, " Maintenance status

brgew TYPE brgew, " Gross weight

ntgew TYPE ntgew, " Net weight

gewei TYPE gewei, " Weight Unit

END OF ty_mara_tmp.

* Internal table for storing final data
DATA: i_mara TYPE STANDARD TABLE OF ty_mara INITIAL SIZE 0.

* Work area for final table
DATA: w_mara TYPE ty_mara.

* Internal table for storing temp. data
DATA: i_mara_tmp TYPE STANDARD TABLE OF ty_mara_tmp INITIAL SIZE 0.

* Work area for temp. table
DATA: w_mara_tmp TYPE ty_mara_tmp.

* Object variable for ALV grid
DATA: oref1 TYPE REF TO cl_gui_alv_grid.

* Field catalog table for ALV grid
DATA: fieldcat TYPE lvc_t_fcat.

* Workarea for field catalog table
DATA: w_field TYPE lvc_s_fcat.

* Internal table for storing info. for ALV grid
data: i_sort2 TYPE STANDARD TABLE OF lvc_s_sort INITIAL SIZE 0.

* Workarea for sort table
DATA: wa_sort2 TYPE lvc_s_sort.

* Workarea for ALV layout
data: wa_layout TYPE lvc_s_layo.

START-OF-SELECTION.

* Fetch data
SELECT matnr " Material

ersda " Creation date

ernam " Created by

laeda " Last change date

aenam " Last change by

vpsta " Maintenance status

brgew " Gross weight

ntgew " Net weight

gewei " Weight Unit

FROM mara

INTO TABLE i_mara_tmp

UP TO 100 ROWS.

CHECK sy-subrc = 0.

* Populate final table
LOOP AT i_mara_tmp INTO w_mara_tmp.

* Storing the Total text need to be displayed in
* ALV

w_mara-srno = 'Total weight (Gross & Net)'.

w_mara-matnr = w_mara_tmp-matnr.

w_mara-ersda = w_mara_tmp-ersda.

w_mara-ernam = w_mara_tmp-ernam .

w_mara-laeda = w_mara_tmp-laeda.

w_mara-aenam = w_mara_tmp-aenam.

w_mara-vpsta = w_mara_tmp-vpsta.

w_mara-brgew = w_mara_tmp-brgew.

w_mara-ntgew = w_mara_tmp-ntgew.

w_mara-gewei = w_mara_tmp-gewei.

APPEND w_mara TO i_mara.

ENDLOOP.

* Calling the screen to display ALV

CALL SCREEN 100.

*&---------------------------------------------------------------------*
*& Module STATUS_0100 OUTPUT
*&---------------------------------------------------------------------*
* Display ALV report
*----------------------------------------------------------------------*

MODULE status_0100 OUTPUT.

IF oref1 IS INITIAL.

* Create ALV grid object

* In this case we have not created any custom container in the screen,

* Instead of that dummy container name is passed

* ADVANTAGE: we can run this report in background without any problem

CREATE OBJECT oref1

EXPORTING

i_parent = cl_gui_custom_container=>screen0

EXCEPTIONS

error_cntl_create = 1

error_cntl_init = 2

error_cntl_link = 3

error_dp_create = 4

OTHERS = 5
.

CHECK sy-subrc = 0.

* Preparing the field catalog

* ZDEMO: Defined in DDIC, it's structure is same as TYPE ty_mara

* defined in the program

CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'

EXPORTING

i_structure_name = 'ZDEMO'

CHANGING

ct_fieldcat = fieldcat

EXCEPTIONS

inconsistent_interface = 1

program_error = 2

OTHERS = 3.

IF sy-subrc = 0.

LOOP AT fieldcat INTO w_field.

IF w_field-fieldname = 'BRGEW' OR

w_field-fieldname = 'NTGEW'.

* Summation for Gross & Net weight

w_field-do_sum = 'X'.

MODIFY fieldcat FROM w_field TRANSPORTING do_sum.

ENDIF.

IF w_field-fieldname = 'SRNO'.

* Hide this field so that it can display it's content i.e.

* Total text in Subtotal level

w_field-tech = 'X'.

w_field-no_out = 'X'.

MODIFY fieldcat FROM w_field TRANSPORTING tech no_out.

ENDIF.

CLEAR w_field.

ENDLOOP.

ENDIF.

* Populate Sort table with SRNO field so that we can display the total

* text in it's subtotal level

wa_sort2-spos = 1.

wa_sort2-fieldname = 'SRNO'.

wa_sort2-up = 'X'.

wa_sort2-subtot = 'X'.

APPEND wa_sort2 TO i_sort2.

* Hide the total line

wa_layout-no_totline = 'X'.

* Display the ALV grid

CALL METHOD oref1->set_table_for_first_display

EXPORTING

is_layout = wa_layout

CHANGING

it_outtab = i_mara[]

it_fieldcatalog = fieldcat

it_sort = i_sort2

EXCEPTIONS

invalid_parameter_combination = 1

program_error = 2

too_many_lines = 3

OTHERS = 4.

IF sy-subrc <> 0.

ENDIF.

* Set the focus on the grid

CALL METHOD cl_gui_alv_grid=>set_focus

EXPORTING

control = oref1

EXCEPTIONS

cntl_error = 1

cntl_system_error = 2

OTHERS = 3.

IF sy-subrc <> 0.

ENDIF.

ENDIF.

ENDMODULE. " STATUS_0100 OUTPUT

Output: