Cascading Selection- Choice filter from more than one selected

I look around but cant find how to build xlsform with Cascading Select like below.
1/ Question 1: Select one
Answer: a b c d ...
2/ Question 2: Select one
If a or b is choiced: 1 3 5 7
If c or d is choiced: 2 4 6 8

Pls help.


Please see the link for reference and attached example form for Cascading selects example.

Hope this will help,
new_cascading_select.xlsx (10.1 KB)

Welcome to the ODK forum, @dmtk41! We're glad you're here. When you get a chance, please Introduce yourself here!. I'd also encourage you to add a real picture as your avatar because it helps build community!


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As in your file, i need to repeat the country "King" if it belong to both Washington and Texas. Is there any better way because my choice list quite long, up to 40, that's really hard to repeat choice many time.new_cascading_select.xlsx (13.6 KB)

It's the way choice_filter works so you would need to repeat some items.


Thank @A.N.M_AL-IMRAN, @Grzesiek2010 for your help.

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