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    How to make a field required based on a previous selection?

    Asked by brsilvafe9 on December 06, 2013 at 01:55 PM

    For example, if you select a particular option in a combo box, another field becomes mandatory.

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    Answered by EliezerN on December 06, 2013 at 03:03 PM

    Thanks for contacting us.

    Our form builder does not have such functionality. However, I think there's a workaround that we could do using conditional logic. Please take a look in this form: http://form.jotform.co/form/33395241468863

    I  was able to accomplish that by adding two Age fields, one is set as required and the other one is not.

    Then, I created this condition:

    If Will you attend to the event? Is equal to Yes Show Age (required) and Hide Age.

    I used the show/hide method to build the condition: 

    I hope this helps. Inform us if you need further assitance.