display Radiobutton only after a report

Hi ALL,

I have 2 RadioButton in my program: the first one is to check a FILE and the second one to post this FILE.

When selecting R1 and executing: If the are errors, I display an ALV with that errors. otherwise, a report is displayed with a success message.

my requirement is that the R2 should be gray until the report of success is displayed, then it will change to selectable.

Thanks.