Stopping the down key from creating a record

Question

hey, basically what the title says, i have put:
if :system.last_record = 'true'
     then null;
else next_record;
into the KEY-DOWN trigger, hoping that when the cursor got to the last record and the user pressed down it would not then proceed to create a new record. However this does not seem to work, anyone any suggestions on how I could acheive the desired result. Possible just change the 'then' part of my code?
Ty.

Answer 1

try this on KEY-DOWN trigger at form level
IF :SYSTEM.LAST_RECORD = 'TRUE'
THEN     
     MESSAGE('You are at the last record.');
ELSE     
     DOWN;
END IF;