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

    Vertical Slider modifies text field. Condition on text field is not triggered.

    Asked by carambamoreno on March 01, 2015 at 07:46 PM


    I created this example:



    It has a vertical slider.

    The slider changes the first text field value.

    That text field has a condition that at the same time recalculates the other two text fields.

    The problem:

    When the slider changes the first text field, the others two aren't recalculated.

    Only when I click on the first text field and then click outside do the calculations happen.


    Can you help me check it out?

    Page URL:

  • Profile Image
    JotForm Support

    Answered by Welvin on March 02, 2015 at 07:52 AM


    The form direct URL gives me no problem: http://www.jotform.co/form/50597508336866. It looks like the calculation will only work if a keyboard key is clicked. In this case, the number keys. To fix this, I think you need to add an onchange function to the input boxes.

    Why not use our Slide widget  to do the calculation? http://widgets.jotform.com/widget/slider. You should be able to accomplish the same using this widget without using and modifying the source codes.