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.


  • Profile Image

    Form Calculator

    Asked by Officite on December 17, 2015 at 08:04 PM

    I have created a form with 6 topics, using check boxes.  Each section has between 5 - 16 items with a total of 68 items.  Ultimately, I want someone to select their top 20 items and have the form calculator keep a tally of how many items have been selected and when it hits 20, not allow the person to select anymore.  How do I go about this?  Thanks!

    Page URL:
    https://form.jotform.com/53505700310137

    form calculator check selected select section
  • Profile Image
    JotForm Support

    Answered by Chriistian on December 18, 2015 at 03:37 AM

    Hi,

     

    I checked the form and I noticed that you have a calculator already setup. For the calculator to work automatically when the user selects an item on your check-box field, please try to un-check the "Wait for input before including the field in calculation."setting in the form calculation widget.

    After that, you can setup a condition where you can disable or show a warning message that the user can select only 20 items. Here is a sample form where I disable the checkbox fields so user can only select 20 items - https://form.jotform.com/53511805618959?. And here is a sample form where I show a warning message to the user- https://www.jotform.com/53511230071944? when user selects more that 20 items.

     

    Do let us know if you need further assistance.
    Regards.