How read a PARAMLIST param??????

Question

Hi.
I have a big problem with a applications forms (11g).
I´d like to read the content of a PARAMLIST object, but i don´t know how is it. I find in the Oracle Document´s and nothing.
I don´t know the name of the values and the content. HOw it is???.
Thanks and sorry form my Engliish.

Answer 1

Hi adama,
Perhaps you will know all the posibles parameters your application use. In that case
look at the next code, I think it will help you.
1.- The example use a PLL libary with a procedure named CALL_REPORT. This is the code:
PROCEDURE call_report (xparamlist IN OUT PARAMLIST) IS
BEGIN     
-- I know all the posibles parameters my system can use and i have then in a Memory Table --
pk_param.wparam1(1) := 'SISTEMAG';
pk_param.wparam1(2) := 'NIVEL0';
pk_param.wparam1(3) := 'NIVEL1G';
pk_param.wparam1(4) := 'NIVEL2G';
FOR i IN 1..4 LOOP
-- FRM-47013 WHEN PARAMETER EXIST --
pk_param.wi := i;
add_parameter(xparamlist, pk_param.wparam1(i), TEXT_PARAMETER, 'XX');
END LOOP;
END;     
In the pll library there is a PACKAGE. This the code:
PACKAGE PK_PARAM IS
TYPE wtt IS TABLE OF VARCHAR2(50) INDEX BY BINARY_INTEGER;
wparam1 wtt;
wi NUMBER;
END;
2.- A Form with a when-button-pressed trigger. This the trigger code:
DECLARE
wlista_parametros PARAMLIST;
BEGIN     
wlista_parametros := Get_Parameter_List('tmpdata');
IF NOT Id_Null(wlista_parametros) THEN
Destroy_Parameter_List (wlista_parametros);
END IF;
wlista_parametros := Create_Parameter_List('tmpdata');
add_parameter(wlista_parametros, 'SISTEMAG', TEXT_PARAMETER, 'XX');
add_parameter(wlista_parametros, 'NIVEL0', TEXT_PARAMETER, 'XX');
add_parameter(wlista_parametros, 'NIVEL1G', TEXT_PARAMETER, 'XX');
add_parameter(wlista_parametros, 'NIVEL2G', TEXT_PARAMETER, 'XX');
call_report(wlista_parametros);
END;     
In the Form there is a on-error trigger at form level. This is the code:
IF error_type = 'FRM' AND error_code = 47013 THEN
-- Do something at this point --
MESSAGE('Param EXISTS: ' || pk_param.wparam1(pk_param.wi));
END IF;