Limiting a field value based on another field

replied on July 19, 2018

I was able to set the Max value for one field based on the value from another field by using the below JavaScript. Both fields are number fields.

$(document).ready(function() {
  $('.FirstField').on("change", function(){
    var firstField = $('.FirstField input').val();
    $('.SecondField input').attr("max", firstField);
  });
})

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View 2 previous replies

replied on July 23, 2018

Hi @████████

Any idea how to make that work on a table ?

It kind of works but the FirstField value only comes from the first row in the table

Jonathan

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replied on October 23, 2019 • Show version history

Hello @████████,

I tried the script you provided above and it works perfectly anytime the FirstField (#q204) value is less than 1000. Once the FirstField value is equal to 1000 or more then it does not matter what value is entered in the SecondField (#q118), it will not accept any number. For example if the FirstField value equals 1500.00 and I enter 500.00 as the SecondField value it gives me an error that says "Value must be less than or equal to 1,500.00."

$(document).ready(function() {
  $('#q204').on("change", function(){
    var q204 = $('#q204 input').val();
    $('#q118 input').attr("max", q204);
  });
})

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replied on October 23, 2019

Hi Christopher,

I am able to recreate your issue if the "Use thousands delimiter" checkbox is checked on the individual fields. If I un-check that box on both fields I do not get the error.

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replied on October 23, 2019

Thanks a million!

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replied on June 22, 2020

Is there a way to accomplish this while retaining the thousands delimiter?

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Limiting a field value based on another field

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