Alert-fields should not be empty

Question

Hi,
I am using Oracle forms 10g,
My question is...
in form.. If i left some required items empty... when I press submit button then it should display alert message these fields(like empno,ename,sal,..) are empty....
please  fill these items....
help me...
Thanks,
Shankar

Answer 1

I tried this on EMP table.... Is it correct???????????
I write this code in WHEN-BUTTON-PRESSED
declare
  alrt varchar2(20);
  alrt2 varchar2(120);
begin
  alrt2:='Enter These items'||chr(13)||chr(10);
  if :emp.deptno is null then
  alrt2:='Department number'||chr(13)||chr(10);
  end if;
  if :emp.ename is null then
  alrt2:=alrt2||'ename'||chr(13)||chr(10);
  end if;
  if :emp.sal is null then
  alrt2:=alrt2||'salary'||chr(13)||chr(10);
  end if;
  if :dept.deptno is not null and :emp.ename is not null and :emp.sal is not null then
  commit;
  else
  set_alert_property('NULL',alert_message_text,alrt2);
  alrt:= show_alert('NULL');
  end if;
  end;
# Chr(10) returns a linefeed character
# Chr(13) returns a carriage return character
Other wise help me try to reduce the code.....
Thanks & Regards,
Shankar.