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

At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.

We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.


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    Is there a way to exclude negative inputs in the Number field of the Configurable List widget?

    Asked by tctrust on December 08, 2016 at 01:57 PM
    1. Exists an opportunity to exclude negative numbers?
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    JotForm Support

    Answered by Mike_G on December 08, 2016 at 02:18 PM

    I would like to apologize, I'm afraid that can't be done within the form. However, if you are going to embed your form somewhere (on a website), you can download the "Full Source Code" of your form and try to modify it.

    http://stackoverflow.com/questions/7372067/is-there-any-way-to-prevent-input-type-number-getting-negative-values

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    JotForm Support

    Answered by Mike_G on December 08, 2016 at 02:51 PM

    By the way, you may also try using a different type of field for your "Cantidad" column of you Configurable list widget. You can use drop-down field or a plain textbox field where respondents can just enter a positive number.