Drop down list item to select date

Question

I am using oracle form 6i, i want to use drop down list item to select date
I was able to manipulate my codes to get values for the three drop down list items year, month and day
but at when list change trigger on month to populate day , it populated accordingly but at point if I selected other month, it added the days of the new month selected to
the days of already selected month. And delete list_element command failed to provide solution..
Can any one help me out -- <email address removed by moderator so that you won't get spammed for all Eternity>

Answer 1

1976 as year and march as month
declare
last_date date;
nDays number;
cursor days(v_last_date in date,vnDays in number) is
select first_day(v_last_date)+rownum-1 sdate from dual
connect by rownum<vnDays+1;
begin
select last_day(to_date(monthITEM||yearITEM,'MonthYYYY')) from dual;
// the month is in the monthITEM
// the year is in the yearITEM
// last_day will have the last day of that month.
//now you have to find the no. of days.
select to_char(last_Date,'dd') into nDays from dual;
for dates in days
loop
add_list_element(listname,dates.sdate,dates.sdate,1);
end loop;
end;