Doubt in loop at screen

Question

i am using two dates in the selection screen one is ERDAT and another is BNDDT.
these two fileds are obligatory.
i am using radiobutton to enable these field. look at my coding
  IF p0 = 'X'.
    LOOP AT SCREEN.
      IF screen-name = 'S_BNDAT-LOW' OR
         screen-name = 'S_BNDAT-HIGH' OR
         screen-group1 = 'SC1'.
         screen-input = '0'.
        MODIFY SCREEN.
        CLEAR screen.
      ENDIF.
    ENDLOOP.
  ENDIF.
  IF p1 = 'X'.
    LOOP AT SCREEN.
      IF screen-name = 'S_ERDAT-LOW' OR
         screen-name = 'S_ERDAT-HIGH' OR
         screen-group1 = 'SC1'.
        screen-active = '0'.
         MODIFY SCREEN.
        CLEAR screen.
      ENDIF.
    ENDLOOP.
  ENDIF.
if i select p1 ,the screen displays error message like fill in all required entry.
if the fileds are not obligatory its working fine.
how to over come this.
Regards,
Bala
Code Formatted by: Alvaro Tejada Galindo on Jan 8, 2009 2:48 PM

Answer 1

hi..
step 1) just use "MODIFY ID "  for the field in your selection-screen to make it into one group.
EX:
select-options:   s_cajo  for  tcj_documents-cajo_number
                               modif id cas.
step2) in your at selection-screen .
just loop the screen and make it required..as follows:
EX:
    loop at screen.
      if screen-group1 = 'CAS'.
        screen-required = 1.
       screen-input     = 0.
        screen-active    = 1.
        endif.
      modify screen.
    endloop.
I think it will helps you..
UR's
GSANA
Code Formatted by: Alvaro Tejada Galindo on Jan 8, 2009 2:49 PM