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Concat() function: Do not display concatenated values until prequel data has been entered

Question asked by siewwei.goh on Nov 5, 2017
Latest reply on Nov 5, 2017 by Philip.Wilson-esristaff

In using the concat() function involving using fixed terms, such as 'and' shown in the example, in between referenced values, the term 'and' would be shown in the field as a default.

For example, I had used the functions as below to returns two result into one field:

In the Survey123 form, I will get  '()' as a default:

It works well once the prequel fields are selected:


However, I do not want the "()" or any other fixed character/s to be showing until the prequel information has been selected. How do I set it so it shows an empty field on default?


Thank you