Concat not working in browser

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03-22-2023 05:35 AM
mapmcburney
New Contributor III

I have this simple concat calculation in my form. It works perfectly in the Survey123 application but in the browser (and experience builder) it does not. It fills all values with NaN. Can anyone tell me how to fix?

I also already tried setting the calcualtionMode="always"

concat.JPG

 

 

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DougBrowning
MVP Esteemed Contributor

That is because you are also using +.  The browser does not like + at all.

concat takes multiple arguments so just do

concat(string(${StudyNumber}), "-", string(${TrialID}))

hope that helps 

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2 Replies
DougBrowning
MVP Esteemed Contributor

That is because you are also using +.  The browser does not like + at all.

concat takes multiple arguments so just do

concat(string(${StudyNumber}), "-", string(${TrialID}))

hope that helps 

mapmcburney
New Contributor III

Thank you!