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

    Conditional Logic field clears when conditions are executed

    Asked by MoDOTEHP on October 12, 2016 at 04:00 PM


    Bridge field clears when it populates the other two following fields.


    Appreciate any assistance!

  • Profile Image
    JotForm Support

    Answered by jonathan on October 12, 2016 at 11:37 PM

    I was able to see the issue when I test your form https://www.jotform.com/62765923509162


    I found that it was being cause by the condition rules you have setup on your form.

    Because you have set the condition rules to use the Bridge Number 2x on the same instance to update to the other 2 fields, the 2nd update condition was causing the initial value of the Bridge Number field to disappear. Because the update script was refreshing the field.

    The correct way is to have the 2nd rule applied instead to the 'County' field. 



    I do see the hassle in updating all these condition rules now because there were 1000+ condition rules you have created. I could not find any other way to workaround this though.

    We actually do not recommend using the Condition tool in such way. Not only it is difficult to manage, it also have performance penalty on the online form due to processing of the script conditions if there were a lot of them.

    I'll also investigate more what can possibly be done to make the update simpler. Perhaps I can find a way. I'll update you here for any news.