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    Calculation widget detects the empty space in the dropdown field as a valid option

    Asked by john.roscoe on March 30, 2014 at 01:19 AM

    For radio buttons and check boxes the calculation values can be entered in the same sequence as the Options list, however for Drop down boxes, the firsl line is always a blank line. If you enter the calculation values to match the Options list the result will always be offset by one line. So you have correct this by making the first value '0'. You cant just leave a blank line because it will be deleted when you save the settings.

    Here is a screenshot to demonstrate, using the identical values for both a dropdown box and a check box. Note the value in the dropdown for the 21" monitor is actually showing the value for the keyboard because I didnt insert a 0 for the first value. The checkbox version is correct.

    Here is a screenshot showing the value 0 entered to offset the blank line in the dropdown box.

    I suggest this feature is modified to enter an offset automatically, to prevent possible errors when inputting Calculation Values to match the Options values.

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    JotForm Support

    Answered by Welvin on March 30, 2014 at 06:30 AM

    Hi John,

    Thanks for posting this on a new thread. Let me forward this thread to our developers so they can further check. 

    For now, please use the method with adding zero as the first value. Seems like the empty space of the dropdown field is treaded as a valid option by the calculation function.


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    Answered by jamesforpm on September 08, 2014 at 12:13 PM

    Any update on this?

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    JotForm Support

    Answered by david on September 08, 2014 at 12:48 PM


    The blank option is indeed a valid option and needs to be treated as such.  Adding a value of 0 or whatever you would like to have as your default, is the proper solution for this.  If you have any further questions, please create a new thread and we will be happy to help.