Loop at screen - not all fields are available

Question

Hi all,
I want to set some fields on the screen invisible.
When I do the loop at screen in PBO not all fields from the screen are available.
Just four fields are available. In the screen there are about 20 fields.
I try to use the chain. field xyz. endchain... But it was not the problem.
Any ideas?
regards

Answer 1

Try this ,May be  Help ful
{ SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 2(10)  FOR FIELD r_cars.
PARAMETERS : r_cars RADIOBUTTON GROUP rgb USER-COMMAND usd .
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 20(10)  FOR FIELD r_toyota .
PARAMETERS : r_toyota RADIOBUTTON GROUP rgb1 DEFAULT 'X'.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 20(10)  FOR FIELD r_ford .
PARAMETERS : r_ford RADIOBUTTON GROUP rgb1 .
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 2(10)  FOR FIELD r_bus .
PARAMETERS : r_bus RADIOBUTTON GROUP rgb DEFAULT 'X'.
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 20(10)  FOR FIELD r_volvo .
PARAMETERS : r_volvo RADIOBUTTON GROUP rgb2 .
SELECTION-SCREEN END OF LINE.
SELECTION-SCREEN BEGIN OF LINE.
SELECTION-SCREEN COMMENT 20(10)  FOR FIELD r_merced .
PARAMETERS : r_merced RADIOBUTTON GROUP rgb2  DEFAULT 'X'.
SELECTION-SCREEN END OF LINE.
AT SELECTION-SCREEN OUTPUT.  " AT SELECTION-SCREEN OUTPUT
  IF r_cars = 'X'.                                 " If R_CURS radiobutton is selected
    LOOP AT SCREEN .                       " Looping at screen
      IF screen-name CS 'R_VOLVO' OR
         screen-name CS 'R_MERCED'.
        screen-active = 0.                     " Hiding the R_VOLVO and R_MERCED
        MODIFY SCREEN.
      ENDIF.
    ENDLOOP.
  ELSE.
    LOOP AT SCREEN .
      IF screen-name CS 'R_TOYOTA' OR
         screen-name CS 'R_FORD'.
        screen-active = 0.
      ENDIF.
      MODIFY SCREEN.
    ENDLOOP.
  ENDIF. }