javascript - 选择组背景颜色标签

Question

我正在构建一个动态表单来订购产品并设置了单选按钮的样式。我没有添加所有的 CSS，但足以看出我遇到的问题。选择单选按钮时，我有一些 javascript 可以添加一个类，但是它无法正常工作。我希望它能工作，所以当您选择第 1 组中的一个选项时，按钮变为绿色并保持绿色......然后当您选择第 2 组中的选项时，该按钮也会为所选选项变为绿色。

我将添加几个选项(单选组)并需要更新 javascript，以便每个组都有一个选择的单选按钮保持绿色，但我对 javascript 了解不多。

也许每个标签都有某种类型的数组？

$('label').click(function () {
     $('label').removeClass('btn-primary3');
     $(this).addClass('btn-primary3');
 });

$('input:checked').parent().addClass('btn-primary3');

li.button-list {width:100%; margin:0px 0px 35px -20px; list-style:none; font-size:16px !important; position:relative; text-align:center;}
.checked{display:none;}
input.noradio {visibility: hidden;margin-left:-10px; }
label.btn-primary2 {background-color:#333; border-color:#333;font-size:16px !important; color:#fff; padding:10px;}
label.btn-primary3 {background-color:#008902 !important; border-color:#008902 !important;font-size:16px !important;}
label.btn-primary2:hover {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary2:focus {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary3:hover {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary3:focus {background-color:#008902 !important; border-color:#008902 !important;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<h3 style="text-align:center;">First Radio Group</h3>
<ul class="btn-group"  id="input_14_20">

<li class="gchoice_14_20_0 button-list" >
<label class="wbc-button button btn btn-primary btn-primary2 active" for="choice_14_20_0" id="label_14_20_0">
<input type="radio" name="input_20"  class="noradio" id="choice_14_20_0" tabindex="1" onclick="gf_apply_rules(14,[0,92,99]);" onkeypress="gf_apply_rules(14,[0,92,99]);" autocomplete="off" checked="checked" value="Standard Floor Plan (King-Size Bed)|49900">
<i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 1</label>
</li>


<li class="gchoice_14_20_1 button-list">
<label class="wbc-button button btn btn-primary btn-primary2"> 
<input type="radio" name="input_20" class="noradio" id="choice_14_20_1" tabindex="2" value="Twin Bed Floor Plan|49900" onclick="gf_apply_rules(14,[0,92,99]);" onkeypress="gf_apply_rules(14,[0,92,99]);" autocomplete="off"><i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 2</label>
</li>

</ul>
  
  <h3 style="text-align:center;">Second Radio Group</h3>
  
 <ul class="btn-group2" id="input_14_24">

<li class="gchoice_14_24_0 button-list">
<label name="countertops" class="wbc-button button btn btn-primary btn-primary2 active" for="choice_14_24_0" id="label_14_24_0">
<input type="radio" name="input_24"  class="noradio" id="choice_14_24_0" tabindex="3" autocomplete="off" onclick="changeImage(0) gf_apply_rules(14,[0,101]);" onkeypress="gf_apply_rules(14,[0,101]);" checked="checked" value="Standard Countertops|0">
<i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 1</label>
</li>

<li class="gchoice_14_24_1 button-list">
<label name="countertops" class="wbc-button button btn btn-primary btn-primary2" for="choice_14_24_1" id="label_14_24_1"> 
<input type="radio" name="input_24" class="noradio" id="choice_14_24_1" tabindex="4" onclick="changeImage(1) gf_apply_rules(14,[0,101]);" onkeypress="gf_apply_rules(14,[0,101]);" value="Fiber-Granite Countertops|1800" autocomplete="off"><i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 2</label>
</li>

</ul>

Answer 1

不是获取脚本中的所有标签并删除 btn-primary3类，您只需要获取包含与被单击按钮同名的单选按钮的标签。

因此，为了实现这一点，您首先要在点击的标签中获取输入的名称，方法是选择点击标签的第一个(在本例中是唯一的)类型为“input”的子标签，并将其名称放入临时标签中变量:

var inputName = $(this).children("input")[0].name;

下一步是选择与该名称匹配的所有输入元素的父元素。这些将是相关标签，然后仅从这些标签中删除类:

$("input[name='" + inputName + "']").parent().removeClass('btn-primary3');

将其放入您现有的脚本中，您将获得所需的结果:

$('label').click(function () {
var inputName = $(this).children("input")[0].name;
$("input[name='" + inputName + "']").parent().removeClass('btn-primary3');
$(this).addClass('btn-primary3');
});

$('input:checked').parent().addClass('btn-primary3');

function gf_apply_rules() { }
function changeImage() { }

li.button-list {width:100%; margin:0px 0px 35px -20px; list-style:none; font-size:16px !important; position:relative; text-align:center;}
.checked{display:none;}
input.noradio {visibility: hidden;margin-left:-10px; }
label.btn-primary2 {background-color:#333; border-color:#333;font-size:16px !important; color:#fff; padding:10px;}
label.btn-primary3 {background-color:#008902 !important; border-color:#008902 !important;font-size:16px !important;}
label.btn-primary2:hover {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary2:focus {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary3:hover {background-color:#008902 !important; border-color:#008902 !important;}
label.btn-primary3:focus {background-color:#008902 !important; border-color:#008902 !important;}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<h3 style="text-align:center;">First Radio Group</h3>
<ul class="btn-group"  id="input_14_20">

<li class="gchoice_14_20_0 button-list" >
<label class="wbc-button button btn btn-primary btn-primary2 active" for="choice_14_20_0" id="label_14_20_0">
<input type="radio" name="input_20"  class="noradio" id="choice_14_20_0" tabindex="1" onclick="gf_apply_rules(14,[0,92,99]);" onkeypress="gf_apply_rules(14,[0,92,99]);" autocomplete="off" checked="checked" value="Standard Floor Plan (King-Size Bed)|49900">
<i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 1</label>
</li>


<li class="gchoice_14_20_1 button-list">
<label class="wbc-button button btn btn-primary btn-primary2"> 
<input type="radio" name="input_20" class="noradio" id="choice_14_20_1" tabindex="2" value="Twin Bed Floor Plan|49900" onclick="gf_apply_rules(14,[0,92,99]);" onkeypress="gf_apply_rules(14,[0,92,99]);" autocomplete="off"><i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 2</label>
</li>

</ul>
  
  <h3 style="text-align:center;">Second Radio Group</h3>
  
 <ul class="btn-group2" id="input_14_24">

<li class="gchoice_14_24_0 button-list">
<label name="countertops" class="wbc-button button btn btn-primary btn-primary2 active" for="choice_14_24_0" id="label_14_24_0">
<input type="radio" name="input_24"  class="noradio" id="choice_14_24_0" tabindex="3" autocomplete="off" onclick="changeImage(0); gf_apply_rules(14,[0,101]);" onkeypress="gf_apply_rules(14,[0,101]);" checked="checked" value="Standard Countertops|0">
<i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 1</label>
</li>

<li class="gchoice_14_24_1 button-list">
<label name="countertops" class="wbc-button button btn btn-primary btn-primary2" for="choice_14_24_1" id="label_14_24_1"> 
<input type="radio" name="input_24" class="noradio" id="choice_14_24_1" tabindex="4" onclick="changeImage(1); gf_apply_rules(14,[0,101]);" onkeypress="gf_apply_rules(14,[0,101]);" value="Fiber-Granite Countertops|1800" autocomplete="off"><i class="fa fa-check checked" style="margin-left:-15px;"></i> <i class="fa fa-times unchecked" style="margin-left:-15px;"></i> Option 2</label>
</li>

</ul>

请注意，我为“gf_apply_rules”和“changeImage”添加了占位符函数，并更正了您的 onclick 处理程序中缺少分号的语法错误，以避免代码段中出现错误。