Hi everybody,

How can I construct linked lists in tryton?

I mean, I have two Selection fields A and B, and I want to fill list B with
some options related to the option choosed previously in list A.
I tried with on_change option to change the domain of the second list
but it didn't work. 
Should I use Many2One fields where to store A and B options instead Selection
fields?

Thanks for your help.

Regards,

-- 
Oscar Javier Moreno Rey

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