Is it possible to validate the input in extra attribute fields in a public registration form?
Simple example: If I want the participant to input only a number in the attribute_1 field, can I force it that he cannot register if anything else (e.g. letters) are entered?
Thx & regards, S.
I'm using the hosted LimeSurvey Pro version (at least 3.15) on LS servers, AND also the locally installed xampp version as well (at least 3.15).
Assistance on LimeSurvey forum and LimeSurvey core development are on my free time.
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