在bootstrap-select上显示/隐藏选项？

Question

不久之前我试图在bootstrap-select lib上编写一个小片段,它应该打开并隐藏一些关于父选项的点击/更改事件的额外选项(在底部示例中为一半).

它应该如何工作......

当用户单击特定选项时,一些包含更多附加信息的额外项目将显示在父项下方.当用户再次单击时,应隐藏额外的项目,并从已选择的选项中清除子项目.

问题是什么？

不幸的是我的jquery水平并不高,所以在这一刻我只有/显示/功能没有/隐藏/子项和清除选中(如果选择了一些隐藏父项的子项).如果父项目上的选中箭头不显示,那么将会很好,仅限于孩子.

我的例子

这是我的简短代码 -

    $('.remove-example').find('.hider').hide();

  $('.selectpicker').change(function() {

      var feta = $(this).find("option:selected:first").attr('id');
      var feta1 = $(this).find("option:selected:last").attr('id');
      
      $('.remove-example').find('.' + feta).show();
      $('.remove-example').find('.' + feta1).show();
      
    $('.remove-example').selectpicker('refresh');

  });




$('.rm-mustard').click(function() {
    $('.remove-example').find('.Mustard').hide();
    $('.remove-example').selectpicker('refresh');
  });
  $('.rm-mustard1').click(function() {
    $('.remove-example').find('.Mustard').show();
    $('.remove-example').selectpicker('refresh');
  });


 $('.selectpicker').selectpicker();

.btn-primary {
  padding: 0px 74px;
  margin-top: 5px;
}                
#tastes {
  margin: 15px 0px 0px 15px;
}

.padd {
 margin-left:20px;   
}
}

<script src="http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/js/bootstrap-select.js"></script>
<script src="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/js/bootstrap.js"></script>

<link href="http://cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.css" rel="stylesheet"/>
<link href="http://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/css/bootstrap.css" rel="stylesheet"/>

 <select class="selectpicker remove-example" multiple>
    <option  id="Mustard" value="">Mustard</option>
     <option data-subtext="50g" class="Mustard hider padd">Mustard2</option>
     <option data-subtext="1kg" class="Mustard hider padd">Mustard3</option>
    <option id="Ketchup">Ketchup</option>
     <option data-subtext="50g" class="Ketchup hider padd">Ketchup2</option>
     <option data-subtext="1kg" class="Ketchup hider padd">Ketchup3</option>
    <option value="Relish">Relish</option>
  </select>


<button class="btn btn-success rm-mustard1">Show Mustard</button>
<button class="btn btn-warning rm-mustard">Remove again</button>

http://jsfiddle.net/k0r974b7/

父母是:芥末/番茄酱

孩子是:Mustard1,Mustard2/Ketchup1,Ketchup2

Answer 1

尝试

$('.remove-example').find('.hider').hide();
$('.selectpicker').change(function() {

  var childSelector = $(this).find('option[id]:selected').map(function() {
    return '.' + this.id;
  }).get();


  var $cvisible = $(this).find('.hider').hide().filter(childSelector.join()).show();
  $(this).find('.hider').not($cvisible).prop('selected', false);
  $(this).selectpicker('refresh');

});

$('.rm-mustard').click(function() {
  $('.remove-example').find('.Mustard').hide();
  $('.remove-example').selectpicker('refresh');
});
$('.rm-mustard1').click(function() {
  $('.remove-example').find('.Mustard').show();
  $('.remove-example').selectpicker('refresh');
});

.btn-primary {
  padding: 0px 74px;
  margin-top: 5px;
}
#tastes {
  margin: 15px 0px 0px 15px;
}
.padd {
  margin-left: 20px;
}

<link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/css/bootstrap.css" />
<link rel="stylesheet" type="text/css" href="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/css/bootstrap-select.css" />

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.2/js/bootstrap.js"></script>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/bootstrap-select/1.6.3/js/bootstrap-select.js"></script>

<select class="selectpicker remove-example" multiple>
  <option id="Mustard" value="">Mustard</option>
  <option data-subtext="50g" class="Mustard hider padd">Mustard2</option>
  <option data-subtext="1kg" class="Mustard hider padd">Mustard3</option>
  <option id="Ketchup">Ketchup</option>
  <option data-subtext="50g" class="Ketchup hider padd">Ketchup2</option>
  <option data-subtext="1kg" class="Ketchup hider padd">Ketchup3</option>
  <option value="Relish">Relish</option>
</select>
<button class="btn btn-success rm-mustard1">Show Mustard</button>
<button class="btn btn-warning rm-mustard">Remove again</button>