Create simplified class for popup display, which inherits from ZCL_FALV

[fidley]

Discussed in #81

^{Originally posted by RTagliento September 1, 2023}
Hi Łukasz,
I tried to understand and do myself, but sorry without result.

I used FALV for a fast ALV popup, just for showing some data result..... the question is about the GREEN OK button....

If the user click on it.... nothing happens.

Maybe I miss something....... there is a way to hide it, and keep only the second "X" button that just close the popup?

[wolfsolver]

Hi, me too use flav for some popup. Simple way is to use redefine method and local class. I use this also for get selected row.

1. Add local variable mv_row in private section

  PRIVATE SECTION.
    data: mv_row type i.

3. add get method in public section

  PUBLIC SECTION.
    METHODs get_selected_row RETURNING VALUE(result) TYPE string.

5. Redefine evf_double_click

  METHOD evf_double_click .

    mv_row = E_ROW-INDEX.
    leave to SCREEN 0.
  ENDMETHOD.

7. redefine evf_user_command.

  METHOD evf_user_command.
    CASE e_ucomm.
      WHEN 'CONTINUE'.
        me->get_current_cell_row( IMPORTING ROW = mv_row ).
        LEAVE to SCREEN 0.
      WHEN OTHERS.
        super->evf_user_command( e_ucomm ).
    ENDCASE.
  ENDMETHOD.

8. After display get selected row, where 0 means no row selected

lc_mccode->get_selected_row( ).