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JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.

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    How to lock the calculation field to avoid manual input

    Asked by nystea on November 23, 2016 at 11:44 PM


    I have calc fields to count registrants in my form. Male Students, Female Students, All Students, and All Attendees.

    Tonight a registrant manually overrode the counters and just entered numbers. It never occurred to me that anyone would do this. I need to prevent this in the future. Right now, I think my only option is to hide the fields on the form but transmit them to the database. Are there other ways to accomplish this?



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    JotForm Support

    Answered by jonathan on November 24, 2016 at 12:15 AM


    You can make the calculation field a Read-Only field so that it is locked and cannot be manually filled in.

    Let us know if you need further assistance.