Javascript 选中复选框时动态更改选择选项
更改单击复选框时的选择选项,我有一个由8个复选框组成的列表,它会动态计数复选框。例如,如果我单击1个复选框,它将显示所选的学分数:1,如果我单击2个复选框,它将显示所选的学分数:2,很快 在复选框下方,我有选择选项,我希望在选中复选框时动态更改选择选项 示例:如果我单击两个复选框,我的选择选项应更改为2 selected,依此类推 有人能帮我实现它吗 谢谢 下面是一个演示示例 HTMLJavascript 选中复选框时动态更改选择选项,javascript,jquery,html,Javascript,Jquery,Html,更改单击复选框时的选择选项,我有一个由8个复选框组成的列表,它会动态计数复选框。例如,如果我单击1个复选框,它将显示所选的学分数:1,如果我单击2个复选框,它将显示所选的学分数:2,很快 在复选框下方,我有选择选项,我希望在选中复选框时动态更改选择选项 示例:如果我单击两个复选框,我的选择选项应更改为2 selected,依此类推 有人能帮我实现它吗 谢谢 下面是一个演示示例 HTML <div class="container" > <t
<div class="container" >
<table class="table table-striped">
<tr>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
<td align="center">
<div class="checkbox">
<label>
<input type="checkbox" value="1" class="no_of_credits">
</label>
</div>
</td>
</tr>
</table>
</div>
<div class="container">
<div class="row">
<div class="text-center">
<h1 class="print_no_of_credits">Number Of Credits Selected : 0</h1>
</div>
</div>
</div>
</div>
<form class="form-group">
<select class="form-control">
<option value="1 selected">1 selected</option>
<option value="2 selected">2 selected</option>
<option value="3 selected">3 selected</option>
<option value="4 selected">4 selected</option>
<option value="5 selected">5 selected</option>
<option value="6 selected">6 selected</option>
<option value="7 selected">7 selected</option>
<option value="8 selected">8 selected</option>
<option value="9 selected">9 selected</option>
<option value="10 selected">10 selected</option>
<option value="11 selected">11 selected</option>
<option value="12 selected">12 selected</option>
</select>
</form>
所选学分数:0
选定1个
2选定
选定的3个
选定的4个
选定的5个
选定的6个
选出7名
8选定
9选定
选出10名
11名获选
选定的12个
JQUERY
$(document).ready(function()
{
$('input[type="checkbox"]').click(function()
{
var total = ($('.no_of_credits:checked').length)+0;
$(".print_no_of_credits").html( "<h1>Number Of Credits Selected : "+total+"</h1>" ).length;
});
});
$(文档).ready(函数()
{
$('input[type=“checkbox”]”)。单击(函数()
{
风险价值总额=($('.信用额度的数量:已检查')。长度)+0;
$(“.print_no_of_credits”).html(“所选信用数:“+total+”).length;
});
});
只需将下面的行添加到您的单击事件中
$('.form-control').val(total + " selected");
因此,您的更新代码将是:
$('input[type="checkbox"]').click(function() {
var total = ($('.no_of_credits:checked').length) + 0;
$(".print_no_of_credits").html("<h1>Number Of Credits Selected : " + total + "</h1>").length;
$('.form-control').val(total + " selected");
});
只需将下面的行添加到您的
单击事件中
$('.form-control').val(total + " selected");
因此,您的更新代码将是:
$('input[type="checkbox"]').click(function() {
var total = ($('.no_of_credits:checked').length) + 0;
$(".print_no_of_credits").html("<h1>Number Of Credits Selected : " + total + "</h1>").length;
$('.form-control').val(total + " selected");
});
谢谢@Guruprasad.随时。。快乐编码…)谢谢@Guruprasad.随时。。快乐编码…)