dynamic chart combo box

Hello everybody
how can only A & B to be shown in horizontal axis , when I choose product1 in combo box AND how it is possible to do the same pattern with C & D in product2 and A,B,C and D in all products as well?

Originally Posted by m.zaeim

Hello everybody
how can only A & B to be shown in horizontal axis , when I choose product1 in combo box AND how it is possible to do the same pattern with C & D in product2 and A,B,C and D in all products as well?

can anyone help me?