问当无法编辑HTML时，如何选择父复选框？

EN

var events = $('input[name="event-type[]"]');

$(events).each(function() {
    if($(this).attr('data-parent') != -1) {
        $(this).on('click',function() {
            var subBoxChecked = $(this).prop('checked');
            var subBoxes = $('input[data-parent="' + $(this).attr('data-parent') + '"]');

            $(subBoxes).each(function(index,element) {
                subBoxChecked = subBoxChecked || $(element).prop('checked');
            });

            $('input[value="' + $(this).attr('data-parent') + '"]').prop('checked',subBoxChecked);
        });
    }
});

//all the child checkboxes have a parent value refering

//first append a click to all
//exclude data parent with -1.
$(document).ready(function(){
   //using a css-selector here with the a NOT comparison.
   $("input[data-parent!='-1']").click(function(){
       //here again a css-selector: check if the value matches the parent, then set it to checked.
       $("input[value='"+$(this).attr("data-parent")+"']").prop("checked", true);
       
   });


});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<ul class="wpt-form-set wpt-form-set-checkboxes wpt-form-set-checkboxes-event-type" data-level="0">
  <li class="tax-corporate-events tax-event-type-52">
    <input type="checkbox" id="cred_form_6568_1-checkbox-30-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-30-1438779193" data-wpt-name="event-type[]" value="52" data-parent="-1" data-value="CORPORATE EVENTS"
    class="wpt-form-checkbox form-checkbox checkbox">
    <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-30-1438779193">CORPORATE EVENTS</label>
  </li>

  <li class="tax-children-of-52">
    <ul class="wpt-form-set-children wpt-form-set-children-level-1" data-level="1">
      <li class="tax-after-dinner-shows tax-event-type-87">
        <input type="checkbox" id="cred_form_6568_1-checkbox-31-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-31-1438779193" data-wpt-name="event-type[]" value="87" data-parent="52" data-value="AFTER DINNER SHOWS"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-31-1438779193">AFTER DINNER SHOWS</label>
      </li>

      <li class="tax-award-ceremonies tax-event-type-92">
        <input type="checkbox" id="cred_form_6568_1-checkbox-32-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-32-1438779193" data-wpt-name="event-type[]" value="92" data-parent="52" data-value="AWARD CEREMONIES"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-32-1438779193">AWARD CEREMONIES</label>
      </li>

      <li class="tax-background-music tax-event-type-86">
        <input type="checkbox" id="cred_form_6568_1-checkbox-33-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-33-1438779193" data-wpt-name="event-type[]" value="86" data-parent="52" data-value="BACKGROUND MUSIC"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-33-1438779193">BACKGROUND MUSIC</label>
      </li>

      <li class="tax-comperes tax-event-type-91">
        <input type="checkbox" id="cred_form_6568_1-checkbox-34-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-34-1438779193" data-wpt-name="event-type[]" value="91" data-parent="52" data-value="COMPERES"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-34-1438779193">COMPERES</label>
      </li>

      <li class="tax-dance-the-night-away tax-event-type-89">
        <input type="checkbox" id="cred_form_6568_1-checkbox-35-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-35-1438779193" data-wpt-name="event-type[]" value="89" data-parent="52" data-value="DANCE THE NIGHT AWAY"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-35-1438779193">DANCE THE NIGHT AWAY</label>
      </li>

      <li class="tax-exhibitions tax-event-type-84">
        <input type="checkbox" id="cred_form_6568_1-checkbox-36-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-36-1438779193" data-wpt-name="event-type[]" value="84" data-parent="52" data-value="EXHIBITIONS"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-36-1438779193">EXHIBITIONS</label>
      </li>

      <li class="tax-mix-mingle tax-event-type-90">
        <input type="checkbox" id="cred_form_6568_1-checkbox-37-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-37-1438779193" data-wpt-name="event-type[]" value="90" data-parent="52" data-value="MIX &amp; MINGLE"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-37-1438779193">MIX &amp; MINGLE</label>
      </li>

      <li class="tax-product-launches tax-event-type-85">
        <input type="checkbox" id="cred_form_6568_1-checkbox-38-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-38-1438779193" data-wpt-name="event-type[]" value="85" data-parent="52" data-value="PRODUCT LAUNCHES"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-38-1438779193">PRODUCT LAUNCHES</label>
      </li>

      <li class="tax-wow-factor tax-event-type-88">
        <input type="checkbox" id="cred_form_6568_1-checkbox-39-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-39-1438779193" data-wpt-name="event-type[]" value="88" data-parent="52" data-value="WOW FACTOR"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-39-1438779193">WOW FACTOR</label>
      </li>
    </ul>
  </li>

  <li class="tax-private-parties tax-event-type-83">
    <input type="checkbox" id="cred_form_6568_1-checkbox-40-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-40-1438779193" data-wpt-name="event-type[]" value="83" data-parent="-1" data-value="PRIVATE PARTIES"
    class="wpt-form-checkbox form-checkbox checkbox">
    <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-40-1438779193">PRIVATE PARTIES</label>
  </li>

  <li class="tax-children-of-83">
    <ul class="wpt-form-set-children wpt-form-set-children-level-1" data-level="1">
      <li class="tax-chill-out tax-event-type-101">
        <input type="checkbox" id="cred_form_6568_1-checkbox-41-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-41-1438779193" data-wpt-name="event-type[]" value="101" data-parent="83" data-value="CHILL OUT"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-41-1438779193">CHILL OUT</label>
      </li>

      <li class="tax-party-band tax-event-type-99">
        <input type="checkbox" id="cred_form_6568_1-checkbox-42-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-42-1438779193" data-wpt-name="event-type[]" value="99" data-parent="83" data-value="PARTY BAND"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-42-1438779193">PARTY BAND</label>
      </li>

      <li class="tax-tribute-theme tax-event-type-98">
        <input type="checkbox" id="cred_form_6568_1-checkbox-43-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-43-1438779193" data-wpt-name="event-type[]" value="98" data-parent="83" data-value="TRIBUTE THEME"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-43-1438779193">TRIBUTE THEME</label>
      </li>

      <li class="tax-walk-around-acts tax-event-type-102">
        <input type="checkbox" id="cred_form_6568_1-checkbox-44-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-44-1438779193" data-wpt-name="event-type[]" value="102" data-parent="83" data-value="WALK AROUND ACTS"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-44-1438779193">WALK AROUND ACTS</label>
      </li>

      <li class="tax-wow-factor tax-event-type-100">
        <input type="checkbox" id="cred_form_6568_1-checkbox-45-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-45-1438779193" data-wpt-name="event-type[]" value="100" data-parent="83" data-value="WOW FACTOR"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-45-1438779193">WOW FACTOR</label>
      </li>
    </ul>
  </li>

  <li class="tax-wedding tax-event-type-53">
    <input type="checkbox" id="cred_form_6568_1-checkbox-46-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-46-1438779193" data-wpt-name="event-type[]" value="53" data-parent="-1" data-value="WEDDING"
    class="wpt-form-checkbox form-checkbox checkbox">
    <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-46-1438779193">WEDDING</label>
  </li>

  <li class="tax-children-of-53">
    <ul class="wpt-form-set-children wpt-form-set-children-level-1" data-level="1">
      <li class="tax-ceremony tax-event-type-93">
        <input type="checkbox" id="cred_form_6568_1-checkbox-47-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-47-1438779193" data-wpt-name="event-type[]" value="93" data-parent="53" data-value="CEREMONY"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-47-1438779193">CEREMONY</label>
      </li>

      <li class="tax-drinks-reception tax-event-type-94">
        <input type="checkbox" id="cred_form_6568_1-checkbox-48-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-48-1438779193" data-wpt-name="event-type[]" value="94" data-parent="53" data-value="DRINKS RECEPTION"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-48-1438779193">DRINKS RECEPTION</label>
      </li>

      <li class="tax-evening-party tax-event-type-95">
        <input type="checkbox" id="cred_form_6568_1-checkbox-49-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-49-1438779193" data-wpt-name="event-type[]" value="95" data-parent="53" data-value="EVENING PARTY"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-49-1438779193">EVENING PARTY</label>
      </li>

      <li class="tax-mix-mingle tax-event-type-97">
        <input type="checkbox" id="cred_form_6568_1-checkbox-50-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-50-1438779193" data-wpt-name="event-type[]" value="97" data-parent="53" data-value="MIX &amp; MINGLE"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-50-1438779193">MIX &amp; MINGLE</label>
      </li>

      <li class="tax-sangeet tax-event-type-96">
        <input type="checkbox" id="cred_form_6568_1-checkbox-51-1438779193" name="event-type[]" data-wpt-type="checkbox" data-wpt-id="cred_form_6568_1_cred_form_6568_1-checkbox-51-1438779193" data-wpt-name="event-type[]" value="96" data-parent="53" data-value="SANGEET"
        class="wpt-form-checkbox form-checkbox checkbox">
        <label class="wpt-form-label wpt-form-checkbox-label" for="cred_form_6568_1-checkbox-51-1438779193">SANGEET</label>
      </li>
    </ul>
  </li>
</ul>