InfoPath Dev

 Hi

 I try to set my drop down list base on the selection from user; when they picked American car, they'll get GM and Ford. Else, they get diff option.

I'm using Rule / Set Field and get dropdown list from Sharepoint. It doesn't work. Can it be done?

Thank you for your help. I'm appreciated

There are several blogs and examples on the site for cascading drop down lists but you would need to have each type like GM linked to American cars.

Otherwise you would want to have both an american and a japanese dropdown on your form and hide them and then reveal the one they need depending on their first choice.

can I set show and hide base on 2 drop down list? It's not working for me.

I think you want to use Or instead of And. It is a bit counterintuitive but since it is not equals it is the opposite.  That way both have to be true to show the section.