Question

我有一个表单，其中复选框分为多个组，单选按钮组以选择全部并选择无。复选框标签将附加一个类（对于css，使其成为图像）。我遇到的问题是脚本在条件语句中循环回自身，我一直在努力解决问题。

我创建了一个JSFiddle页面，其中的代码为http://jsfiddle.net/jaread83/V5SSM/

我想要它做什么：

单击SelectAll，所有复选框标签都会获得'c_on'类，并且所有复选框都会被选中。

单击SelectNone，所有复选框标签都删除了'c_on'类，并取消选中所有复选框输入。

当click_label被点击时，该部分中的所有复选框标签都会被'c_on'并且也会被选中，然后在取消选中时，删除已选中状态并仅从该部分删除'c_on'类。

当单击一个不是section_label的复选框标签时，该单个项目标签会添加“c_on”类，并且复选框会获得检查状态。

html：

<div class="form">
<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>


<button type="submit" class="icon icon-arrow-white">Submit</button>

JS：

jQuery(document).ready(function($) {
//check all and checknone
  $('#selectAll').click(function() {
      var selectAllButton = $('#selectAllButton');
      var selectNoneButton = $('#selectNoneButton');
      var checkboxes = $(this).closest('form').find(':checkbox');
      var checklabels = $('.label_check');
      checkboxes.attr('checked', true);
      checklabels.addClass('c_on');
      selectAllButton.addClass('c_on');
      selectNoneButton.removeClass('c_on');
  });

  $('#selectNone').click(function() {
      var selectAllButton = $('#selectAllButton');
      var selectNoneButton = $('#selectNoneButton');
      var checkboxes = $(this).closest('form').find(':checkbox');
      var checklabels = $('.label_check');
      checkboxes.attr('checked', false);
      checklabels.removeClass('c_on');
      selectNoneButton.addClass('c_on');
      selectAllButton.removeClass('c_on');
  });

  //check all within section
  $('.section .section_label').click(function(){
    var p = $(this).parent();

    if($(this).hasClass('c_on')){
      // remove the checkbox classes on sub sections
      p.find('.subsection').find('label').removeClass('c_on');
      // remove the class from the thing we have clicked
      $(this).removeClass('c_on');
    } else {
      p.find('.subsection').find('label').addClass('c_on');
      $(this).addClass('c_on');
    }
  });

 });

对此的任何帮助将不胜感激。

Answer 1

这样的东西？

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

DEMO

Answer 2

使用prop()代替attr()查看复选框，查看演示here

<强>更新

jQuery(document).ready(function($) {
//check all and checknone
  $('#selectAll').click(function() {
      var selectAllButton = $('#selectAllButton');
      var selectNoneButton = $('#selectNoneButton');
      var checkboxes = $('input:checkbox');
      var checklabels = $('.label_check');
      checkboxes.prop('checked', true);
      checklabels.addClass('c_on');
      selectAllButton.addClass('c_on');
      selectNoneButton.removeClass('c_on');
  });

  $('#selectNone').click(function() {
      var selectAllButton = $('#selectAllButton');
      var selectNoneButton = $('#selectNoneButton');
      var checkboxes = $('input:checkbox');
      var checklabels = $('.label_check');
      checkboxes.prop('checked', false);
      checklabels.removeClass('c_on');
      selectNoneButton.addClass('c_on');
      selectAllButton.removeClass('c_on');
  });

  //check all within section
    $('.section .section_label input:checkbox').click(function(){

    var p = $(this).parents('.section');

     p.find('div.subsection input:checkbox').prop('checked', this.checked);
    if(!this.checked){
       $(this).parent().removeClass('c_on')            
      // remove the checkbox classes on sub sections
      p.find('.subsection').find('label').removeClass('c_on');
      // remove the class from the thing we have clicked
      $(this).removeClass('c_on');
    } else {
       $(this).parent().addClass('c_on')
        p.find('.subsection').find(':checkbox').prop('checked', true)
      p.find('.subsection').find('label').addClass('c_on');
      $(this).addClass('c_on');
    }
  });

 });

如果您对此有任何疑问或疑虑，请与我们联系。

很高兴为您提供帮助

jQuery Checkbox选择all，选择none并选择group

2 个答案: