[ABAP] SELECTION-SCREEN DYNAMIC TEXT

TOP

selection-screen begin of line.
selection-screen comment 1(31) text-002 for field p_week.
parameters : p_week   type c length 2.
selection-screen comment 36(40) txt_but
modif id txt.
selection-screen  end of line.

at selection-screen output

  data : days type t5a4a-dlydy,
        lv_date  type datum.
  gv_week = p_week.
  loop at screen.
    if screen-group1 = 'TXT'.
      screen-intensified = '1'.
*      txt_but = '123123'.
      days = gv_week * 7.
      call function 'RP_CALC_DATE_IN_INTERVAL'
        exporting
          date      = p_date
          days      = days
          months    = '00'
          signum    = '-'
          years     = '00'
        importing
          calc_date = lv_date.
      txt_but = lv_date.
    endif.
    modify screen.
  endloop.

TOP에서 선언 시 MODIF ID 부여 후, LOOP AT SCREEN에서 해당 그룹으로 잡은 후 TEXT 제어