Record count message

Question

Hi all,
I have 2 canvas (1 canvas having database block items ,2nd having control block items & FIND button also in Control block), My requirement is when i select any one of the lov and click on the find button(in 2nd canvas , control block canvas) then it navigates to the database block canvas and displays records, at that time i want to display record count message. for this i add on-count trigger on form level, but not working, Could any one suggest me please.
declare
  cnt number := 1;
begin
  go_block('Blockname');
  first_record;
  while :system.last_record = 'FALSE'
  loop
  cnt := cnt + 1;
  next_record;
  end loop;
message('There are ' || cnt || ' records in this block');
end;
Thank You

Answer 1

994122 wrote:
declare
  cnt number := 1;
BEGIN
  IF :SYSTEM.LAST_RECORD='TRUE' THEN
  go_block('HOPE_FORECAST_DATA');
  first_record;
  loop
      cnt := cnt + 1;
          EXIT WHEN :SYSTEM.LAST_RECORD='TRUE';
      next_record;
  end loop;
    FND_MESSAGE.SET_STRING('There are ' || cnt || ' records in this block');
    FND_MESSAGE.SHOW;
message'There are '||to_char(cnt)||' records in this block'); message(' ',no_acknowledge);
  END if;
end;