从父数据属性值中选择子元素

Question

I have this kind of html blocks:

<div data-target="TargeID" data-action="toggle" data-trigger="Yes">
    ...

    <ul>
        <li>
            <label class="radio">
            <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_0" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl01$rbAnswer">
            Yes             
            </label>
        </li>

        <li>
            <label class="radio">
            <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_1" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl02$rbAnswer">
            No              
            </label>
        </li>

        <li>
            <label class="radio">
            <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_2" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl03$rbAnswer">
            maybe               
            </label>
        </li>
    </ul>
</div>

I need to select every input inside elements with data-action="toggle"

and Im using this jQuery selector: $('[data-action="toggleQuestions"] :input');

but I need to select those input which text value is equal to the parent data-trigger value.

Is it possible directly with a selector?

Answer 1

The logic is too complex to put in to a single selector. Instead you can use filter() to find the :input elements, then match the text() of their parent label to the data-trigger value on the container. Try this:

 var $container = $('[data-action="toggle"]'); var $input = $container.find(':input').filter(function() { return $(this).closest('label').text().trim() == $container.data('trigger'); }) $input.prop('checked', true); 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div data-target="TargeID" data-action="toggle" data-trigger="Yes"> <ul> <li> <label class="radio"> <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_0" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl01$rbAnswer"> Yes </label> </li> <li> <label class="radio"> <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_1" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl02$rbAnswer"> No </label> </li> <li> <label class="radio"> <input id="cpMainContent_ctl24_rptAnswers_rbAnswer_2" type="radio" name="cpMainContent_ctl24" value="ctl00$cpMainContent$ctl24$rptAnswers$ctl03$rbAnswer"> maybe </label> </li> </ul> </div> 

Answer 2

Use the below code

$('[data-action="toggle"]').each(function() {
    var triggerValue = $(this).attr("data-trigger");

    $(this).find('input[type=radio]').each(function() {
        if ($(this).parent().text().trim() === triggerValue) {
            $(this).prop("checked", true);
        }
    });
});