1- Is the radio button (C) static or dynamic?
2- What is the relationship between the data for the 3 parameters?
Maybe you can make it a simpler to understand with the CAR sample
A - State selection
C - City selection
B - has 4 region (East, West, North or South), depending on this -> State / City selected
If that is the case, I'd try to get all that info mapped to a single table/hold file. Then chain B->A->C.
Thanks,
Sayed
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