Hi,
You need to
1. Give user command to radio buttons
2. Modif Id to the fields field1 and field2.
3. code both cases in at selection screen output.
You will get the required output.
PARAMETER : r_x RADIOBUTTONGROUP rad1 USER-COMMAND fc ,
r_y RADIOBUTTONGROUP rad1 .
SELECTION-SCREEN beginofBLOCK bl1 WITH FRAME.
PARAMETERS p_field1 TYPEc MODIF ID MD1.
PARAMETERS p_field TYPEc MODIF ID MD1.
SELECTION-SCREENendofBLOCK bl1.
AT SELECTION-SCREENOUTPUT.
if r_y = 'X'.
loopatscreen.
IFscreen-group1 = 'MD1'.
screen-invisible = 0.
screen-input = 1.
MODIFYSCREEN.
ENDIF.
ENDLOOP .
else.
loopatscreen.
IFscreen-group1 = 'MD1'.
screen-invisible = 1.
screen-input = 0.
MODIFYSCREEN.
ENDIF.
ENDLOOP .
endif.