1

我已经构建了一个表单,需要根据其父级动态检查输入复选框。到目前为止,我已经选择了全部,选择无,在单击父项时选择部分内的所有子项,并在再次单击该父项时在一个部分中选择无。

我遇到的问题是我希望子复选框在至少取消选择一个时取消选中父复选框。因此,例如,我单击父复选框,它选择所有子复选框...然后我单击其中一个子复选框以取消选择它,但我也希望父复选框知道这一点,如果其中一个复选框被取消选择children 未选中。

我还需要这样做,所以如果我检查一个部分中的所有子项(而不是父项),在检查最后一个(全部)之后,父项将获得选定的状态。

对此的任何帮助将不胜感激,因为我发誓我为此脱发了!

JS小提琴地址:http: //jsfiddle.net/DprEu/1/

这是我的代码:

JS

jQuery(document).ready(function($) {
// checkbox functions
  $('#selectAllButton').on('click', function () {
      $('input[type="checkbox"]').prop('checked', true).closest('label').addClass('c_on');
      $('#selectAllButton').addClass('c_on');
      $('#selectNoneButton').removeClass('c_on');
  });
  $('#selectNoneButton').on('click', function () {
      $('input[type="checkbox"]').prop('checked', false).closest('label').removeClass('c_on');
      $('#selectNoneButton').addClass('c_on');
      $('#selectAllButton').removeClass('c_on');
  });

  $('.section .section_label input').click(function () {
      var chckClass = "";
      if (!this.checked) {
          chckClass = "";
      } else {
         chckClass = "c_on"
      }
      $(this).closest('.section').find('input[type="checkbox"]').not(this).prop('checked', this.checked).closest('label').removeClass("c_on").addClass(chckClass);
  });
  $('input[type="checkbox"]').on('click', function () {
       var chckClass = "";
      if (!this.checked) {
          chckClass = "";
      } else {
         chckClass = "c_on"
      }
      $(this).closest('label').removeClass('c_on').addClass(chckClass);
  });
});

HTML:

<div class="document">
<div class="section inline">
    <label class="label_radio lightblue" id="selectAllButton" for="selectAll">
        <input type="radio" name="masscheck" id="selectAll" />Select all</label>
</div>
<div class="section inline">
     <label class="label_radio lightblue" id="selectNoneButton" for="selectNone">
        <input type="radio" name="masscheck" id="selectNone" />Select none</label>
</div>
<div class="clear"></div>
</div>


<div class="document">
    <div class="section">
        <label class="label_check section_label blue" for="docs_1131">
            <input type="checkbox" id="docs_1131" name="docs" value="1131" />Title page</label>
    </div>
</div>

<div class="document">
    <div class="section">
        <label class="label_check section_label blue" for="docs_1118">
            <input type="checkbox" id="docs_1118" name="docs" value="1118" />
            Section 1
        </label>

        <blockquote>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1119">
                    <input type="checkbox" id="docs_1119" name="docs" value="1119" />
                    Subsection 1.1
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1120">
                    <input type="checkbox" id="docs_1120" name="docs" value="1120" />
                    Subsection 1.2
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1121">
                    <input type="checkbox" id="docs_1121" name="docs" value="1121" />
                    Subsection 1.3
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1122">
                    <input type="checkbox" id="docs_1122" name="docs" value="1122" />
                    Subsection 1.4
                </label>
            </div>
        </blockquote>
    </div>
</div>

<div class="document">
    <div class="section">
        <label class="label_check section_label blue" for="docs_1123">
            <input type="checkbox" id="docs_1123" name="docs" value="1123" />
            Section 2
        </label>

        <blockquote>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1124">
                    <input type="checkbox" id="docs_1124" name="docs" value="1124" />
                    Subsection 2.1
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1125">
                    <input type="checkbox" id="docs_1125" name="docs" value="1125" />
                    Subsection 2.2
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1126">
                    <input type="checkbox" id="docs_1126" name="docs" value="1126" />
                    Subsection 2.3
                </label>
            </div>
            <div class="subsection">
                <label class="label_check sub_label lightblue" for="docs_1127">
                    <input type="checkbox" id="docs_1127" name="docs" value="1127" />
                    Subsection 2.4
                </label>
            </div>
        </blockquote>
    </div>
</div>

CSS:

.c_on{
    background-color:red;
}
4

2 回答 2

1

尝试

jQuery(document).ready(function($) {
    var $all = $('#selectAllButton input[type="radio"]').change(function () {
        $sectionchecks.prop('checked', true).trigger('change');
        $none.closest('label').removeClass('c_on');
    });
    var $none = $('#selectNoneButton input[type="radio"]').change(function () {
        $sectionchecks.prop('checked', false).trigger('change');
        $all.closest('label').removeClass('c_on');
    });

    $('.section .section_label input').click(function () {
        $(this).closest('.section').find('.subsection input[type="checkbox"]').prop('checked', this.checked).trigger('change')
    });

    $('.section .subsection input').change(function () {
        var $section = $(this).closest('.section');
        var $childs = $section.find('.subsection input[type="checkbox"]');
        $section.find('.section_label input[type="checkbox"]').prop('checked', $childs.not(':checked').length == 0).trigger('change')
    });

    var $sectionchecks = $('.section').find('input[type="checkbox"]');
    $sectionchecks.add($none).add($all).change(function(){
        $(this).closest('label').toggleClass('c_on', this.checked);
    })
});

演示:小提琴

于 2013-10-09T13:50:38.590 回答
0

如果它会离开这个结构,你可以找到你的父复选框,如下所示:

$('input[type="checkbox"]').on('click', function () {
       var chckClass = "";
      if (!this.checked) {
          chckClass = "";
      } else {
         chckClass = "c_on"
      }
      if($(this).parent().hasClass('sub_label')) { // HERE YOU KNOW IF ITS A SON OR FATHER         
         $(this).parent().parent().parent().parent().find('input[type:checkbox]:first').attr('checked');
         $(this).closest('label').removeClass('c_on').addClass(chckClass);
      }
  });
于 2013-10-09T13:36:56.150 回答