Cannot get parent element using jQuery

问题

I have the following html structure created dynamically by foreach loop and tried to remove the whole element by accessing it from (ACTIVE HYPERLINK). I tried many different way, but cannot reach to it. As the whole block (of ACTIVE HYPERLINK) is repeated, I think it is meaningless to use class name of the hyperlink. I also tried to use a.active but not seem to work.

@foreach (var file in Model.FileAttachments)
{
    <li class="aaa">
        <div class="bbb">
            <div class="ccc">
                <div class="ddd">                   
                    <div class="eee">
                        <ul class="fff">
                            <li>
                                <a class="xxx" href="javascript:void(0);" data-id="@file.Id" data-toggle="confirmation" ></a> <!-- ACTIVE HYPERLINK -->
                            </li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </li>
}

<script>

    $('.xxx').click(function (e) {
        e.preventDefault();
        $('[data-toggle="confirmation"]').confirmation('show');
    });


    $('[data-toggle="confirmation"]').confirmation({
        //code omitted for brevity      
        onConfirm: function () { deleteRecord(); }, // Set event when click at confirm button
    });


    function deleteRecord() {
        var $ctrl = $('.xxx');

        $.ajax({
        //code omitted for brevity

        success: function (response, textStatus, XMLHttpRequest) {
            if (response.success) {             
                ctrl.closest('.aaa').remove();
                //or                
                $("a.active").closest('.jFiler-item').remove();
            }
        });

    };

</script>

Here is some example of my tries:

$("a.active").closest('.aaa').remove();
$(".xxx").closest('.aaa').remove();
$(this).data('.aaa')remove();
$("a.active").parents('li').eq(2)remove();
$(".xxx").parents('li').eq(2)remove();

Any idea?

回答1:

UPDATED RESPONSE

$('.xxx').click(function (e) {
    var $this = $(this);
    e.preventDefault();
    $('[data-toggle="confirmation"]').confirmation({
        //code omitted for brevity      
        onConfirm: function () {
            deleteRecord($this); // send reference to delete method
        }
    });
    $('[data-toggle="confirmation"]').confirmation('show');
});

...

function deleteRecord($ctrl) {
...

ORIGINAL RESPONSE

If you want the block removed on click on the <a> element, you need to assign a handler to the click event:

$('.xxx').on('click', function(){
    $(this).closest('.aaa').remove();
});

回答2:

Use event delagation, event.preventDefault() at click of <a> element to prevent default action of current document reloading or redirection to another resource; pass current event.target : this to deleteRecord()

$(document).on("click", ".xxx", function (e) {
    e.preventDefault();
    var curr = $(this);
    curr.confirmation('show')
    .confirmation({
      // pass `curr` to `deleteRecord()`
      onConfirm: function () { deleteRecord(curr); }
    })
});


function deleteRecord(el) {

    $.ajax({
    //code omitted for brevity

    success: function (response, textStatus, jqxhr) {
        if (response.success) {             
            el.closest('.aaa').remove();
        }
    });

};

回答3:

Here is the final answer that is working like a charm with the help of @ZoliSzabo and guest271314. Many thanks for your help and suggestions...

@foreach (var file in Model.FileAttachments)
{
    <li class="aaa">
        <div class="bbb">
            <div class="ccc">
                <div class="ddd">                   
                    <div class="eee">
                        <ul class="fff">
                            <li>
                                <a class="xxx" href="javascript:void(0);" 
    data-id="@file.Id" data-toggle="confirmation" ></a> <!-- ACTIVE HYPERLINK -->
                            </li>
                        </ul>
                    </div>
                </div>
            </div>
        </div>
    </li>
}



<script>

    var $ctrl = null; //define variables globally 
    var id = 0; //define variables globally 

    $('.icon-jfi-trash').bind('click', function (e) {
        e.preventDefault();
        $ctrl = $(this);
        id = $(this).data('id');
        $(this).find('[data-toggle="confirmation"]').confirmation('show');
    });


    $('[data-toggle="confirmation"]').confirmation({
        //code omitted for brevity
        onConfirm: function () { deleteRecord(); }
    });




    function deleteRecord() {
        var token = $('[name=__RequestVerificationToken]').val();

        $.ajax({
            type: "POST",
            url: '@Url.Action("DeleteRecord", "Controller")',
            cache: false,
            dataType: "json",
            data: { __RequestVerificationToken: token , id: id },

            success: function (response, textStatus, XMLHttpRequest) {
                if (response.success) {
                    $ctrl.closest('.jFiler-item').remove();
                }
            }
        });
    }

<script>

来源：https://stackoverflow.com/questions/39964831/cannot-get-parent-element-using-jquery