Select Options - Auto-Populated when there is only 1 option available

[eltonasanto]

Hi everyone, how are you?!

I need the field to be auto-populated when there is only 1 option in the Select Box (img_1)

I am using this code in the 'Catalog Client Script', but it is not working. (img_2)

function onChange(control, oldValue, newValue, isLoading, isTemplate) {

    if (isLoading || newValue === '') {

        return;

    }

    var custReq = g_form.getElement('subservice');

    if (custReq.options.length == 1) {

        g_form.setValue('subservice', custReq.options[0].value);

    }

}

Note that this message appears regarding the use of DOM, but I have already set it to "isolate script -img_0", but it still doesn't work (img_3)

I also replaced getElement() with getValue() or getControl(), but without success! (This replacement is a suggestion from SN itself)

Note: I used this suggestion as a reference: "https://www.servicenow.com/community/csm-forum/how-to-autopopulate-choice-if-there-is-single-value/m... but it is not working as well.

I have already created BR:

if (current.subservice.nil()) {

    var gr = new GlideRecord('sys_choice');

    gr.addQuery('conditions', 'value');

    gr.query();

    if (gr.getRowCount() == 1 && gr.next()) {

        current.subservice = gr.sys_id;

    }

}

Does anyone have any suggestions?

Thanks.

Note: When there is only 1 option available, it doesn't make sense for the user to have to select it, because it should be filled in

There is a similar question in this Community link.

https://www.servicenow.com/community/csm-forum/how-to-autopopulate-choice-if-there-is-single-value/m...

I used this same code to test, but as mentioned above, but unfortunately it didn't work.

Does anyone have any suggestions?

Thanks

[eltonasanto]

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