如何仅通过第一个div JavaScript进行迭代

时间:2019-07-01 15:22:31

标签: javascript jquery html loops

我有以下HTML

<div class="col-lg-7 col-md-6 col-sm-6 text-left">
    <a href="javascript:;" class="multiSelect active" id="lbAssistingStaff" title="Evelyn Lupardus, Jamison Hennigan, Kajal Jain, Milud De Silvaa"><span style="width: 252px;">Evelyn Lupardus, Jamison Hennigan, Kajal Jain, Milud De Silvaa</span></a>
    <div class="multiSelectOptions" style="position: absolute; z-index: 99999; visibility: visible; height: 150px; width: 259px; top: 30px; left: 15px;">
        <label class="selectAll">
            <input type="checkbox" class="selectAll">Select All</label>
        <label class="">
            <input type="checkbox" name="lbAssistingStaff[]" value="10307">Dovie Segerson</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="14172">Kajal Jain</label>
        <label>
            <input type="checkbox" name="lbAssistingStaff[]" value="10354">Lydia Nikocevic</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="10355">Margo Mondloch</label>
    </div>
    <div class="multiSelectOptions" style="position: absolute; z-index: 99999; visibility: visible; height: 150px; width: 259px;">
        <label class="selectAll">
            <input type="checkbox" class="selectAll">Select All</label>
        <label>
            <input type="checkbox" name="lbAssistingStaff[]" value="10307">Dovie Segerson</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="14172">Kajal Jain</label>
    </div>
    <div class="multiSelectOptions" style="position: absolute; z-index: 99999; visibility: visible; width: 259px;">
        <label class="selectAll">
            <input type="checkbox" class="selectAll">Select All</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="14172">Kajal Jain</label>
        <label>
            <input type="checkbox" name="lbAssistingStaff[]" value="10062">Nevada Morison</label>
    </div>
    <div class="multiSelectOptions" style="position: absolute; z-index: 99999; visibility: visible; height: 150px; width: 412px;">
        <label class="selectAll">
            <input type="checkbox" class="selectAll">Select All</label>
        <label>
            <input type="checkbox" name="lbAssistingStaff[]" value="10259">Abel Schear</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="10405">Adam Sandling</label>
        <label>
            <input type="checkbox" name="lbAssistingStaff[]" value="10400">Alta Barba</label>
        <label class="checked">
            <input type="checkbox" name="lbAssistingStaff[]" value="16224">amali silva</label>
    </div>
    <input type="hidden" name="ctl00$ContentPlaceHolder1$ctlViewFilters$hndAssistingStaff" id="hndAssistingStaff" value="10276,10352,14172,14177,10276,10352,14172,10276,10352,14172,14172,14172,14172,14172,10276,10352,14172,10276,10352,14172">
</div>

是通过JQuery多重选择生成的。存在单独的div,它们具有相同的类名称,称为class="multiSelectOptions"。现在我只需要在第一个Div(top Div)内部将所有选中的选项值推送到Array中即可。

<div class="multiSelectOptions" style="position: absolute; z-index: 99999; visibility: visible; height: 150px; width: 259px; top: 30px; left: 15px;">
    <label class="selectAll">
        <input type="checkbox" class="selectAll">Select All</label>
    <label class="">
        <input type="checkbox" name="lbAssistingStaff[]" value="10307">Dovie Segerson</label>
    <label class="checked">
        <input type="checkbox" name="lbAssistingStaff[]" value="14172">Kajal Jain</label>
    <label>
        <input type="checkbox" name="lbAssistingStaff[]" value="10354">Lydia Nikocevic</label>
    <label class="checked">
        <input type="checkbox" name="lbAssistingStaff[]" value="10355">Margo Mondloch</label>
</div>

我尝试过了,

$("#lbAssistingStaff").next("div").click(function (e) {
    var listboxID = "lbAssistingStaff";
    var selectedItemIDs = [];
    $('input[name="' + listboxID + '\[\]"]:checked').each(function () {
        selectedItemIDs.push($(this).val());
    });
});

但这遍历了所有div的name="lbAssistingStaff[]",根据我的要求,数组应该仅具有这两个值( 14172,10355 )。

2 个答案:

答案 0 :(得分:2)

提供上下文。

$('input[name="' + listboxID + '\[\]"]:checked', this)

这会将选择器应用于您单击的div的this

答案 1 :(得分:1)

$(this)中使用find

$("#lbAssistingStaff").next("div").click(function (e) {
    var listboxID = "lbAssistingStaff";
    var selectedItemIDs = [];
    $(this).find('input[name="' + listboxID + '\[\]"]:checked').each(function () {
    // ^^^^^^^^^
        selectedItemIDs.push($(this).val());
    });
});

侧面说明:jQuery提供了一个map函数,您可以使用它来代替创建数组然后推送到它:

var selectedItemIDs = $(this).find('input[name="' + listboxID + '\[\]"]:checked').map(function () {
    return this.value; // No need to wrap it just to get the value
}).get();

请不要忘记最后的.get(),否则您将获得一个jQuery对象而不是一个真正的数组。