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.

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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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    Auto updating number of available spots

    Asked by davort on April 27, 2012 at 04:05 AM

    Hey guys, I have searched the forum about this topic, but to no avail.

    I would need to make a form where applicants would have a choice of several teams to pick, for example in a dropdown (but any other option works as well). Each team can have only 10 players. Is it possible to somehow predefine that in a form, so when a person fills up the form, they can see in the dropdown immediately how many spots every team has left? And of course, once a team is filled (10 people choose it), it becomes disabled and can't be selected any more? This would require for Jotform to be able to do the math on its own. I am not aware it has such capability, but considering what a great app it is, nothing about it can surprise me anymore :)

    Thanks in advance!

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    JotForm Support

    Answered by jonathan on April 27, 2012 at 04:42 AM


    We probably need the source code embed and some javascript/or PHP for the math condition functions to pull this off. We can provide you more suggestions and help if you at least have a base form already setup, so we can look at it and assist you on the way. =)

    Thank you for cosidering our service. Inform us when we can proceed further.

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    Answered by davort on April 28, 2012 at 11:59 AM

    Hello Jonathan, and thank you for reacting to my query so quickly. From what I've found in this topic, what I was asking about might not be doable.

    I spent some more time thinking about it and this is what we'd need to achieve (if possible). I made a quick wireframe just to help explain the general idea: http://cl.ly/1G3I411O0w0N042i2x1L

    We'll have a shooting tournament and we'd like for shooters to be able to select groups in which they'd like to compete. Each group can consist of 8 shooters. Once 8 people have registered for a certain group, registration for that group is off. As shown in the wireframe, we'd have 4 different registration forms, one for each group. The landing page (shown in the wireframe) would show who has already registered for each group. Once a limit of 8 shooters has been reached, registration button is replaced by a line of text explaining the group is full and registration for that group has ended.

    I believe that's enough info to get the picture. Please let me know if something like this is possible to achieve with use of Jotform.

    Thanks and regards!

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    Answered by fxr on April 28, 2012 at 12:16 PM

    Thats a quite a relatively sophiscated web application you describe there. 

    You can use JotForm , but there would be a need for javascript, server side code like php and probably a database to make it happen. 

    Its unfortunately considerably beyond the core functionality of JotForm, It would be a few hours work for a decent web developer to do. 

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    Answered by davort on April 28, 2012 at 12:34 PM

    Hey, no worries, I'll think of something else. Thanks!

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    JotForm Support

    Answered by jonathan on April 28, 2012 at 04:31 PM

    Thanks davort. =) Indeed, any customers feedback/inputs are invaluable to us -- like yours.