How to limit the number of responses for a multiple-choices question

I want to limit the number of answers selection for a multiple choices question (3 responses as maximum for that question), and I inserted the syntax: “(if(count-selected(.)>2,true())” under settings of that question in the web-form, but the system displayed an error message when I clicked to preview or deploy it. Anyone could you please help me to check and fix this issue?
Thank you very much!

Welcome @vchung,
You are missing the else case in your if clause.

Often you can get help directly by using the search function of this forum, e.g.

Often also the Help Center articles provide answers.

@Kal_Lam. A count-selected example might be good to.add in the Help Center, please. (I found nothing there.)


Well noted @wroos! We will keep this on our radar.

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@vchung, I see that your if statement is not complete. It should have 3 arguments. Maybe you should be able to learn more about the same through this post discussed previously:

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THanks so much!

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Thanks for sharing this info this is useful keep it up.

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