Changes the attributes belonging to the current screen field whilst processing with LOOP AT SCREEN ... ENDLOOP.
The attributes of all fields of a screen are stored in the system table SCREEN. This can be edited line by line using LOOP AT SCREEN ... ENDLOOP. Changes to the properties of the attributes of the current screen field (= current line in the system table SCREEN) can be put into effect using MODIFY SCREEN.
This statement should be used only within a LOOP AT SCREEN ... ENDLOOP loop at PBO time as part of the process logic of a screen.
LOOP AT SCREEN... ENDLOOP , MODIFY itab