javascript - 根据单选按钮显示/隐藏表单内容

Question

我正在构建一个表单，其中包含需要根据选中的复选框显示的条件字段。我想知道如何在选中复选框时隐藏其他表单域。我还希望能够在选中两个复选框时显示所有字段。

在下面的标记中，我在要呈现 html 的位置添加了注释。

<form class="form-horizontal">
<fieldset>


<!-- Multiple Checkboxes -->
<div class="control-group">
  <label class="control-label">Multiple Checkboxes</label>
  <div class="controls">
    <label class="checkbox">
      <input type="checkbox" name="checkboxes" value="Load">
      Load
    </label>
    <label class="checkbox">
      <input type="checkbox" name="checkboxes" value="Unload">
      Unload
    </label>
  </div>
</div>

<!-- Show when "load" is checked -->
<div class="control-group">
  <label class="control-label">Dorms</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>Degraff</option>
    </select>
  </div>
</div>

<!-- Show when "load" is checked -->
<div class="control-group">
  <label class="control-label">Greek House</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>Tri Delt</option>
    </select>
  </div>
</div>

<!-- Show when "unload" is checked -->
<div class="control-group">
  <label class="control-label">How many hops?</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>One</option>
      <option>Two</option>
      <option>Three</option>
      <option>Four</option>
    </select>
  </div>
</div>

<!-- Show when "unload" is checked -->
<div class="control-group">
  <label class="control-label">How many hours?</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>One</option>
      <option>Two</option>
    </select>
  </div>
</div>

</fieldset>
</form>

Answer 1

我向您的元素添加了一些 id 属性。

HTML

<form class="form-horizontal">
<fieldset>


<!-- Multiple Checkboxes -->
<div class="control-group">
  <label class="control-label">Multiple Checkboxes</label>
  <div class="controls">
    <label class="checkbox">
      <input type="checkbox" name="checkboxes" value="Load">
      Load
    </label>
    <label class="checkbox">
      <input type="checkbox" name="checkboxes" value="Unload">
      Unload
    </label>
  </div>
</div>

<!-- Show when "load" is checked -->
<div id="dorms" class="control-group">
  <label class="control-label">Dorms</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>Degraff</option>
    </select>
  </div>
</div>

<!-- Show when "load" is checked -->
<div id="greek" class="control-group">
  <label class="control-label">Greek House</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>Tri Delt</option>
    </select>
  </div>
</div>

<!-- Show when "unload" is checked -->
<div id="hops" class="control-group">
  <label class="control-label">How many hops?</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>One</option>
      <option>Two</option>
      <option>Three</option>
      <option>Four</option>
    </select>
  </div>
</div>

<!-- Show when "unload" is checked -->
<div id="hours" class="control-group">
  <label class="control-label">How many hours?</label>
  <div class="controls">
    <select id="selectbasic" name="selectbasic" class="input-xlarge">
      <option>One</option>
      <option>Two</option>
    </select>
  </div>
</div>

</fieldset>
</form>

jQuery

$("input[value='Load']").click(function(){
    if($(this).is(":checked")){
       $("#dorms, #greek").show();
    }else{
        $("#dorms, #greek").hide();
    }
});

    $("input[value='Unload']").click(function(){
        if($(this).is(":checked")){
           $("#hops, #hours").show();
        }else{
            $("#hops, #hours").hide();
        }
    });

CSS

#greek, #dorms, #hops, #hours{
    display:none;
}

工作示例 http://jsfiddle.net/cyTLm/