Hide one of the Request category option when a specific ci is selected in Catalog item

[VishakhaShi]

User has a requirement : In a catalog item, when a 'ABC' ci is selected ,  'XYZ' option of request category field should be removed from option.

For this , i used the below script but its not working:

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

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

        return;

    }

    var ci = g_form.getValue('configuraion_item');

     if (ci == 'CI sys id') {

        var options = g_form.getOptions('request_category');

         for (var i = 0; i < options.length; i++) {

            if (options[i].value == 'access_privilege') {

                g_form.removeOption('request_category', options[i].value);

            }

        }

    } else {

      g_form.addOption('request_category', 'access_privilege', 'Access & Privilege');

    }

}

What is the error here?

[Sandeep Rajput]

@VishakhaShi Please update your script as follows.

function onChange(control, oldValue, newValue, isLoading) {
    if (isLoading || newValue == '') {
        return;
    }
    var ci = g_form.getValue('configuraion_item');
 
     if (ci == 'CI sys id') 
     {
       g_form.removeOption('request_category', 'access_privilege');
    } else {       
      g_form.addOption('request_category', 'access_privilege', 'Access & Privilege');
    }
}

[VishakhaShi]

Tried this but not working.

[Sandeep Rajput]

@VishakhaShi Are you sure that request_category is a select box and not a Look up select box? The addOption and removeOption only work with select box.

[VishakhaShi]

Its  Look up select box actually. What is an alternate of addOption and removeOption ?