forms4.x: display multi-record block

Hello :-
I'm attempting to write a trigger to display multiple records on the one block when someone presses the query button - similar to what the Query | Execute menu item achieves. I've written a pl/sql block but the records fetched keeps getting displayed on the first row of the block. As such I can only see the last record of the database. Please show me how to see them all at the same time, in separate rows.

Here's my code:

declare

   CURSOR dept_cur is
   select deptno, dname, loc from dept;
begin
  for dept_rec in dept_cur loop

      :deptno := dept_rec.deptno;


	:dname := dept_rec.dname;


	:loc := dept_rec.loc;


	next_item;

TIA,
Leng.

--
Leng Kaing - Software Consultant/DBA      Tel: +61-3-9688-4368
Dept of IT&S, VUT - Footscray Campus      Fax: +61-3-9688-4800
PO Box 14428, MCMC                        Email: leng_at_cougar.vut.edu.au 
Melbourne 8001, Australia                 WWW: http://www.vut.edu.au/~leng