Select rows in ALV grid with CL_GUI_ALV_GRID

[massimo_sforza]

Hi all,

i'm using class CL_GUI_ALV_GRID and i want the buttons at begin of every row to select it.

With the classic function REUSE_ALV_GRID_DISPLAY i used the layout parameter box_fieldname:

<b>layout-box_fieldname = 'CBOX'.</b>

where CBOX is the name field of my internal table in the first position (char1)

and it works.

with the CL_GUI_ALV_GRID ther's not parameter box_fieldname but BOX_FNAME.

<b>layout_alv-BOX_FNAME = 'CBOX'.</b>

When i call the method

call method grid->set_table_for_first_display

EXPORTING

is_layout = layout_alv

CHANGING

IT_FIELDCATALOG = it_fieldcat_voci

it_sort = gt_sort_grid[]

it_outtab = gt_voci[].

it doesn't work.

Somebody knows why? Do i have to do something else?

Thanks a lot?

Massimo.

[RichHeilman]

Its a little different using the class, First you need to set the selection module before calling the SET_TABLE_FOR_FIRST_DISPLAY method.

data:      LAYOUT  TYPE LVC_S_LAYO,
 
 LAYOUT-SEL_MODE = 'D'.

  CALL METHOD ALV_GRID->SET_TABLE_FOR_FIRST_DISPLAY
      EXPORTING
           IS_LAYOUT              = LAYOUT
      CHANGING
           IT_OUTTAB       = IALV[]
           IT_FIELDCATALOG = FIELDCAT[].

So this will give you the selection box in the ALV output, then you use the method GET_SELECTED_ROWS to determine what rows the user has selected.

DATA: INDEX_ROWS TYPE LVC_T_ROW,
      INDEX LIKE LINE OF INDEX_ROWS.

  CLEAR INDEX_ROWS.  REFRESH INDEX_ROWS.
  CALL METHOD ALV_GRID->GET_SELECTED_ROWS
           IMPORTING
                 ET_INDEX_ROWS = INDEX_ROWS.


* Do something with those selected rows here
      LOOP AT INDEX_ROWS INTO INDEX.

* Use the index to read the specific line of ALV which is selected
        READ TABLE IALV INDEX INDEX-INDEX.
        IF SY-SUBRC = 0.

* Now do what ever you need to with the selected line

        ENDIF.
      ENDLOOP.

Regards,

Rich Heilman

[massimo_sforza]

ok, perfect....

thanks a lot.

Massimo

[RichHeilman]

Maybe you could award some points if the answer has helped you to solve your problem. Thanks in advance.

Regards,

Rich HEilman

[Former Member]

Hi Rich,

I tried the to capture the selected row in the ALV display but INDEX_ROWS remains intial when i checked in debug.

Pls let me know why this happening.

Regards,

Naba

[Ahmed_Yahya]

After 17 years, your answer still helped me 🙏