Dynamic Action On change tabular form question

Question

Hi guys!
I've wanted to add dynamic action on change (tabular form) to execute PL/SQL which checks if column of the tabular form has changed and if yes it changes walue of text field to Y or N. It doesnt work...and I don't know why. If I create validation with this PL/SQL it works. Can you help?
DA:
On change - Tabular Form
PL/SQL;
DECLARE
   nazwa     VARCHAR2(4000);
   counter   NUMBER := 0;
BEGIN
   FOR i IN 1 .. apex_application.g_f08.COUNT
   LOOP
    SELECT NAZWISKO INTO nazwa FROM SPR_META.M_UZYTKOWNICY WHERE NAZWA_UZYTKOWNIKA = apex_application.g_f02(i);
      IF wwv_flow_item.md5(nazwa) <>  wwv_flow_item.md5(apex_application.g_f08(i)) THEN
        counter := counter + 1;
      END IF;
   END LOOP;
   IF counter > 0 THEN
   :P5_IS_TABULAR_FORM_CHANGED := 'Y';
   ELSE
    :P5_IS_TABULAR_FORM_CHANGED := 'N';
  END IF;
END;Page items to submit: P5_IS_TABULAR_FORM_CHANGE
What's wrong?
With regards,
PsmakR

Answer 1

Region static id shouldn be in bracketsYou missed the '#' informt of the region id.
why my original PL/SQL process did not work
FOR i IN 1 .. apex_application.g_f08.COUNTThis works only when the application array has values and that happens only when the page is submitted.When you submit the dynamic action , it isn't.
This script combined with script to detect changes makes apex page running very slowIf you use that PLSQL code(assuming it works as expected) , then its going to take a server request every-time you change a field in the tabular form and loop though all the array values(if they would be submitted before) and recalculate and compare the checksums . Isn't that going to be very inefficient.
As for that JS code, it only runs at the client side. You can do all the server side checks on submit, when the user expects some delay due to processing.