Jquery多个复选框获取var或打印在span中的值 [英] Jquery multiple checkbox get value in var or print in span

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本文介绍了Jquery多个复选框获取var或打印在span中的值的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

html的代码是:

 < div id =container>< h1> Add-ons< ; / h1> 
< input type =checkboxname =ch1value =10id =qr1/> Add-on Number 1 - 10 QR< br />
< input type =checkboxname =ch1value =20id =qr1/> Add-on Number 2 - 20 QR< br />
< input type =checkboxname =ch1value =40id =qr1/> Add-on Number 3 - 40 QR< br />
< input type =checkboxname =ch1value =60id =qr1/> Add-on Number 4 - 60 QR< br />
< / div>

< div>我想要更多的附件
< select id =morename =more>
< option value =0 QR> 0< / option>
< option value =30 QR> 1< / option>
< option value =50 QR> 2< / option>
< option value =100 QR> 3< / option>
< / select>
< span id =span>< / span>
用户总使用量:< span id =usertotal> < / span>

Jquery:

 code> //对于select 

function displayVals(){
var singleValues = $(#more)。
$(#span)。html(< b> more addons:< / b>+
singleValues);
}

$(select)。change(displayVals);
displayVals();
//对于复选框
var $ cbs = $('input [name =ch1]');
$ cbs.click(function(){
var total = 0;
$ cbs.each(function(){
if(this.checked)
var singleValues = $(#more)。val();
total + = + this.value + singleValues;
});
$(#usertotal)。 );
});

我想在用户总使用:创建复选框的总和,该选项使得如果我选择1复选框和2加选项1我将写入用户总使用:60。
提前感谢您!

解决方案

工作演示 http://jsfiddle.net/GNDAG/



希望它有所帮助。您可以阅读有关的详情 此处。 / p>

但是,像@nnnnnn提到的,你的html是不正确的 - ID属性需要是唯一的。



代码

  $('input [type =checkbox (){
if($(this).is(')){
var total_span = 0;
$('input [type =checkbox :checked')){
total_span + = parseInt($(this).prop('value'),10);
}
});

$(#usertotal)。html(total_span);
});


the code for html is :

<div id="container"><h1>Add-ons</h1>
<input type="checkbox" name="ch1" value="10" id="qr1" />Add-on Number 1 - 10 QR <br />
<input type="checkbox" name="ch1" value="20" id="qr1" />Add-on Number 2 - 20 QR <br />
<input type="checkbox" name="ch1" value="40" id="qr1" />Add-on Number 3 - 40 QR <br />
<input type="checkbox" name="ch1" value="60" id="qr1" />Add-on Number 4 - 60 QR <br />
</div>

<div> I want more add-ons
<select id="more" name="more">
    <option value="0 QR">0</option>
    <option value="30 QR">1</option>
    <option value="50 QR">2</option>
    <option value="100 QR">3</option>
</select>
<span id="span"></span>
 User total usage: <span id="usertotal"> </span>

Jquery:

//For select          

      function displayVals() {
      var singleValues = $("#more").val();         
      $("#span").html("<b>more addons:</b> " + 
                  singleValues);
         }

    $("select").change(displayVals);
    displayVals();
//For  checkboxes
var $cbs = $('input[name="ch1"]');
$cbs.click(function() {
    var total = 0;
    $cbs.each(function() {
        if (this.checked)
            var singleValues = $("#more").val();
            total += +this.value + singleValues;
    });
    $("#usertotal").text(total);
});

I want at the user total usage: to create the sum of the checkboxes and add with the value of the option so that if I select 1 checkbox and 2 plus option 1 I will have written in user total usage: 60 . Thank YOU in advance !

解决方案

working demo: http://jsfiddle.net/GNDAG/

Hope it helps. You can read more about each here.

However, like @nnnnnn mentioned, your html isn't right -- ID attributes need to be unique.

Code

$('input[type="checkbox"]').change(function() {
   var total_span = 0;
    $('input[type="checkbox"]').each(function() {
        if ($(this).is(':checked')) {
            total_span += parseInt($(this).prop('value'), 10);
        }
    });

    $("#usertotal").html(total_span);
});​

这篇关于Jquery多个复选框获取var或打印在span中的值的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

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