My evaluate function dont work .Why??

Ok I have simple evaluate function this is call when the combo change the value. then if found the record return "SI" and if not return "NO".
this is the java function
function page1_section1_field1_interactivechange()
{
// insert your code here
ww_selg=Lianja.get("page1.section1").getJSON();
cc_selg=json_encode(ww_selg);
var resultado=Lianja.evaluate("gruposfunction('"+cc_se lg+"')");
Lianja.showMessage('Seleccionando Grupo ..'+resultado);
Lianja.get("page1.section1").refresh();
};

this is my prg function:
gruposfunction.prg
parameter ww_clave
objeto=json_decode(ww_clave)
valor = objeto.field1
save datasession
open database prueba_tablas
if .not. used("encgpo")
use encgpo exclusive in 0
endif
select encgpo
locate eg_nombre = alltrim(valor)
if found()
a1=eg_grupo
restore datasession
return "Si"
else
restore datasession
return "No"
endif
and my output is this:
Attachment 2645

Hi Gontran,

Why is there a space between se and lg in your evaluate call?

One way to check your evaluate calls is to open the Command Window (off the Window dropdown in the LAB) and run it from the command window (with the values supplied to variables as necessary of course). If it runs there, you should be good.

Hank

Hello thanks for the time , that space , not exists in my code I dont know why is in the text. Ok I try to see in the console but. This wotk in the web app?

Hi gontran,

If all you need is field1 then why not just send that as an argument rather than all that JSON.

It looks to me like the null values may be the issue as they won’t parse on the server.

When sending JSON like that you should base64_encode() it on the client and base64_decode() it on the server.

I also note that you are opening a table on the server EXCLUSIVE which you should not do in a web app as many users will be using the system.

The locate statement

locate eg_nombre = alltrim(valor)

should be

locate for eg_nombre = alltrim(valor)