Setting the update property of the row of a records group to false IN ORACL

Question

hello
i have to populate a records group with the previous records user had entered as well as enable the user to enter new record in that RECORD GROUP IN ORACLE 6I FORMS.
I want that previous record that user had entered caN NOT BE EDIT .USER CAN SEE THESE RECORDS ONLY AND ACCORDINGLY ADD NEW RECORDS IN SAME RECORD GROUP.
PL TELL ME HOW TO DO THIS.
THANKS & REGARDS
VISHAL AGRAWAL

Answer 1

I also try for which u mentioned earlier but it is like selectting individual records to display in my tablular record group.
we are using following code for fetching data and displaying it into records group and also making all fetched record disabled.
code is given below :
PROCEDURE fetchdata(mf char) IS
cursor c1 is select dateofmtrl,rm1,rm2,rm3 from rawmtrl_graph
where
dateofmtrl between TO_DATE(TO_CHAR(ADD_MONTHS(SYSDATE, 0),'YYYYMM'),'YYYYMM') and
TO_DATE(TO_CHAR(ADD_MONTHS(SYSDATE, + 1),'YYYYMM'),'YYYYMM') - 1 and
mtrl_flag = mf
order by dateofmtrl ;
r1 c1%rowtype;
lstrec number;
cnt number :=1;
BEGIN
go_block('dtl');
     last_record;
lstrec:=:system.cursor_record;
for ctr in 1..lstrec
loop
     delete_record;
end loop;     
first_record;
     open c1;
     loop
          fetch c1 into r1;
          exit when c1%notfound;
          if :dtl.date1 is not null then
               next_record;
               end if;
               :dtl.date1:=r1.dateofmtrl;
                    :dtl.opc:=r1.rm1;
                         :dtl.ppc:=r1.rm1;
                              :dtl.total:=r1.rm1;          
     end loop;
     close c1;
last_record;
lstrec:=:system.cursor_record;
first_record;
for ctr in 1..lstrec
loop
SET_record_PROPERTY(:system.cursor_record,'dtl',ENABLED,PROPERTY_FALSE);
SET_RECORD_PROPERTY(:SYSTEM.CURSOR_RECORD, 'dtl',UPDATE_ALLOWED,PROPERTY_FALSE);
SET_RECORD_PROPERTY(:SYSTEM.CURSOR_RECORD, 'dtl',insert_allowed,PROPERTY_FALSE)
next_record;
end loop;     
     first_record;
END;
But it is not working...
givinng the erros that no such property for set_record_property
pl tell me how to modify the code to disable some selected raws in a record group............