Disable the Screen Field

Hello Abappers,
I have two radio buttons and two text box.
The text box refers to data dictionary and named as
ZIXHR_S_APPROVAL-APPUSER
ZIXHR_S_APPROVAL-APPORG
When i click on a radio button the first text box should be disable and similar with the secon one.
How to disable the text box from the screen?
Please reply soon.
Regards,
Rahul

Hi,
Try the code given below.
Regards,
Wajid Hussain P.
if rb1 = 'X'.
loop at screen.
if screen-name cs 'ZIXHR_S_APPROVAL-APPUSER'.
screen-input = 0.
modify screen.
elseif screen-name cs 'ZIXHR_S_APPROVAL-APPORG'.
screen-input = 1.
modify screen.
endif.
endloop.
else.
loop at screen.
if screen-name cs 'ZIXHR_S_APPROVAL-APPORG'.
screen-input = 0.
modify screen.
elseif screen-name cs 'ZIXHR_S_APPROVAL-APPUSER'.
screen-input = 1.
modify screen.
endif.
endloop.
endif.

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