Cascading LOV - Keep Existing Value

Question

Need to stop Cascading LOV to reset the values and keep existing selected options IF VALID
please have a look at the scenario
Col-1     Col-2     Col-3
A     AA     1
A     BB     2
A     CC     3
B     AA     1
B     AAB     2
B     AAV     3When Col-1 value is A the LOV of Col-2 has values AA BB CC and Col-3 has 1 2 3
and if Col-2 value is B the LOV of Col-2 has values AA AAB AAV and Col-3 has 1 2 3
What is happening :
» when user changes Col-1 from A to B Col-2 & Col-3 resets the user selected value (I think the default behavior)
what is needed if user has selected "3" in Col-3 and changes Col-1 from A to B Col-2 & Col-3 should have user selected values IF VALID

Answer 1

Yes, just to show it works. In your case, the second dynamic action has to be something like this:
DECLARE
   v_empno   NUMBER;
BEGIN
   SELECT empno
     INTO v_empno
     FROM emp
    WHERE deptno = :p292_deptno AND empno = :p292_empno;
   RETURN v_empno;
EXCEPTION
   WHEN OTHERS
   THEN
      RETURN v_empno;
END;since it needs to check if the value is in the range of alowed values. In my example I created a fake second entry which has the same ID and there it is enough to do RETURN item value session state.
Denes Kubicek
http://deneskubicek.blogspot.com/
http://www.apress.com/9781430235125
http://apex.oracle.com/pls/apex/f?p=31517:1
http://www.amazon.de/Oracle-APEX-XE-Praxis/dp/3826655494
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