Looking for assistance with toggling options in a dropdown menu based on user selection

I seem to be encountering difficulties in hiding certain options when another option is selected in the select dropdown. Currently, my form defaults to 'Select1' on AS400 and 'Select2' on New Account, which reveals the user input fields.

However, I am facing a couple of issues:

Upon loading the form, 'Select1' (AS400) and 'Select2' (New Account) are displayed along with an additional 'Select2' option that should not appear.

If a user selects other options from 'Select2', the 'Select3' option also becomes visible under 'Select2' options.

Furthermore, when a user chooses 'Select1' and then selects any other option from 'Select3', the option from 'Select1' is still displayed. Is there a way to rectify this so that the user only sees their selections?

...
javascripthtmljquerycss

Answer №1

It seems like the code you shared is quite extensive for me to fully assist with, but I believe the following snippet might be beneficial in achieving your objective if my understanding is correct.

To streamline your secondary dropdowns, I've combined them using jQuery along with a handy technique for disabling certain dropdown options.

<script type="text/javascript>
    $(function() {
        // At page load, encase all select-2 options in span tags to prevent selection without specifying select-1
        $('#select-2 option:not([default])').wrap('<span/>');
    });

    // Upon changing select-1, conceal options without the corresponding class to the select-1 value
    $('#select-1').change(function() {
        $('#select-2 span > option').unwrap();
        $('#select-2 option:not(.' + $('#select-1').val() + ', [default])').wrap('<span/>');
        // console.log($('#select-2').val());
    });
    $('#select-2').trigger('change');
</script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<label>Select 1</label>
<select id="select-1">
    <option default>Select</option>
    <option value="option-1">Option 1</option>
    <option value="option-2">Option 2</option>
    <option value="option-3">Option 3</option>
</select>
<br/>
<label>Select 2</label>
<select id="select-2">
    <option default>Select</option>
    <option value="option-1a" class="option-1">Option 1A</option>
    <option value="option-1b" class="option-1">Option 1B</option>
    <option value="option-1c" class="option-1">Option 1C</option>
    <option value="option-2a" class="option-2">Option 2A</option>
    <option value="option-2b" class="option-2">Option 2B</option>
    <option value="option-2c" class="option-2">Option 2C</option>
    <option value="option-3a" class="option-3">Option 3A</option>
    <option value="option-3b" class="option-3">Option 3B</option>
    <option value="option-3c" class="option-3">Option 3C</option>
</select>

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