jquery表行行总计和总计不起作用
我试图动态计算行总数和总计。我已经使用这个惊人的例子作为基础,并且在必要的时候改变了代码,以适应我的项目,但是我在我的本地主机上运行它,看看它是否工作,它似乎没有计算任何总数,而且添加/删除按钮似乎也不起作用,我不知道为什么会这样。运行原始代码可以工作,但不是我的修改版本 HTML:jquery表行行总计和总计不起作用,jquery,html,Jquery,Html,我试图动态计算行总数和总计。我已经使用这个惊人的例子作为基础,并且在必要的时候改变了代码,以适应我的项目,但是我在我的本地主机上运行它,看看它是否工作,它似乎没有计算任何总数,而且添加/删除按钮似乎也不起作用,我不知道为什么会这样。运行原始代码可以工作,但不是我的修改版本 HTML: <table border="0" id="invoiceitems"> <thead> <tr> <td><
<table border="0" id="invoiceitems">
<thead>
<tr>
<td></td>
<td><strong>Paper</strong>
</td>
<td><strong>Price</strong>
</td>
<td><strong>Per Pack</strong>
</td>
<td><strong>Quantity</strong>
</td>
<td><strong>Total</strong>
</td>
</tr>
</thead>
<tfoot>
<tr>
<td></td>
<td></td>
<td></td>
<td><strong>Total:</strong>
</td>
<td>
<label class="grandtotal"></label>
</td>
</tr>
</tfoot>
<tbody>
<tr>
<td>
<input type="button" class="buttondelete" value="Delete" />
</td>
<td>
<input type="text" name="item['. 1 .'][paper]" class="regular-text" value="Glossy Paper A5" />
</td>
<td>
<input type="text" name="item['. 1 .'][price]" class="price" value="15.99" />
</td>
<td>
<input type="text" name="item['. 1 .'][per_pack]" class="per_pack" value="1000" />
</td>
<td>
<input type="text" name="item['. 1 .'][quantity]" class="quantity" value="1" />
</td>
<td>
<label class="subtotal"></label>
</td>
</tr>
</tbody>
</table>
<p>
<input type="button" id="buttonadd" value="Add Line" />
</p>
$(document).ready(function () {
$counter = 1;
$('#buttonadd').click(function () {
$counter++;
$('#invoiceitems > tbody:last').append('<tr><td><input type="button" class="buttondelete" value="Delete"/></td>\
<td><input type="text" name="item[' + $counter + '][paper]" class="regular-text" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][price]" class="price" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][per_pack]" class="per_pack" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][quantity]" class="quantity" value="" /></td>\
<td><label class="subtotal"></label> </td></tr>');
$('.quantity , .price').unbind().on('change', function () {
UpdateTotals(this);
});
});
});
$(document).ready(function () {
$counter = 1;
$('#buttondelete').click(function () {
$counter++;
$('#invoiceitems > tbody tr:last').remove();
$('.quantity , .price').unbind().on('change', function () {
UpdateTotals(this);
});
});
});
$(function () {
CalculateSubTotals();
CalculateTotal();
// Adding the change events for the Price and
// quantity fields only..
// Changing the total should not affect anything
$('.quantity , .price,').on('change', function () {
UpdateTotals(this);
});
});
function UpdateTotals(elem) {
// This will give the tr of the Element Which was changed
var $container = $(elem).parent().parent();
var quantity = $container.find('.quantity').val();
var price = $container.find('.price').val();
var per_pack = $container.find('.per_pack').val();
var subtotal = parseInt(quantity) * parseFloat(price) / parseInt(per_pack);
$container.find('.subtotal').text(subtotal.toFixed(2));
CalculateTotal();
}
function CalculateSubTotals() {
// Calculate the Subtotals when page loads for the
// first time
var lineTotals = $('.subtotal');
var quantity = $('.quantity');
var price = $('.price');
var per_pack = $('.per_pack');
$.each(lineTotals, function (i) {
var tot = parseInt($(quantity[i]).val()) * parseFloat($(price[i]).val()) / parseInt($(per_pack[i]).val());
$(lineTotals[i]).text(tot.toFixed(2));
});
}
function CalculateTotal() {
// This will Itearate thru the subtotals and
// claculate the grandTotal and Quantity here
var lineTotals = $('.subtotal');
var quantityTotal = $('.quantity');
var grandTotal = 0.0;
var totalQuantity = 0;
$.each(lineTotals, function (i) {
grandTotal += parseFloat($(lineTotals[i]).text());
totalQuantity += parseInt($(quantityTotal[i]).val())
});
$('.totalquantity').text(totalQuantity);
$('.grandtotal').text(parseFloat(grandTotal).toFixed(2));
}
纸张
价格
每包
数量
总计
总计:
JQuery:
<table border="0" id="invoiceitems">
<thead>
<tr>
<td></td>
<td><strong>Paper</strong>
</td>
<td><strong>Price</strong>
</td>
<td><strong>Per Pack</strong>
</td>
<td><strong>Quantity</strong>
</td>
<td><strong>Total</strong>
</td>
</tr>
</thead>
<tfoot>
<tr>
<td></td>
<td></td>
<td></td>
<td><strong>Total:</strong>
</td>
<td>
<label class="grandtotal"></label>
</td>
</tr>
</tfoot>
<tbody>
<tr>
<td>
<input type="button" class="buttondelete" value="Delete" />
</td>
<td>
<input type="text" name="item['. 1 .'][paper]" class="regular-text" value="Glossy Paper A5" />
</td>
<td>
<input type="text" name="item['. 1 .'][price]" class="price" value="15.99" />
</td>
<td>
<input type="text" name="item['. 1 .'][per_pack]" class="per_pack" value="1000" />
</td>
<td>
<input type="text" name="item['. 1 .'][quantity]" class="quantity" value="1" />
</td>
<td>
<label class="subtotal"></label>
</td>
</tr>
</tbody>
</table>
<p>
<input type="button" id="buttonadd" value="Add Line" />
</p>
$(document).ready(function () {
$counter = 1;
$('#buttonadd').click(function () {
$counter++;
$('#invoiceitems > tbody:last').append('<tr><td><input type="button" class="buttondelete" value="Delete"/></td>\
<td><input type="text" name="item[' + $counter + '][paper]" class="regular-text" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][price]" class="price" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][per_pack]" class="per_pack" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][quantity]" class="quantity" value="" /></td>\
<td><label class="subtotal"></label> </td></tr>');
$('.quantity , .price').unbind().on('change', function () {
UpdateTotals(this);
});
});
});
$(document).ready(function () {
$counter = 1;
$('#buttondelete').click(function () {
$counter++;
$('#invoiceitems > tbody tr:last').remove();
$('.quantity , .price').unbind().on('change', function () {
UpdateTotals(this);
});
});
});
$(function () {
CalculateSubTotals();
CalculateTotal();
// Adding the change events for the Price and
// quantity fields only..
// Changing the total should not affect anything
$('.quantity , .price,').on('change', function () {
UpdateTotals(this);
});
});
function UpdateTotals(elem) {
// This will give the tr of the Element Which was changed
var $container = $(elem).parent().parent();
var quantity = $container.find('.quantity').val();
var price = $container.find('.price').val();
var per_pack = $container.find('.per_pack').val();
var subtotal = parseInt(quantity) * parseFloat(price) / parseInt(per_pack);
$container.find('.subtotal').text(subtotal.toFixed(2));
CalculateTotal();
}
function CalculateSubTotals() {
// Calculate the Subtotals when page loads for the
// first time
var lineTotals = $('.subtotal');
var quantity = $('.quantity');
var price = $('.price');
var per_pack = $('.per_pack');
$.each(lineTotals, function (i) {
var tot = parseInt($(quantity[i]).val()) * parseFloat($(price[i]).val()) / parseInt($(per_pack[i]).val());
$(lineTotals[i]).text(tot.toFixed(2));
});
}
function CalculateTotal() {
// This will Itearate thru the subtotals and
// claculate the grandTotal and Quantity here
var lineTotals = $('.subtotal');
var quantityTotal = $('.quantity');
var grandTotal = 0.0;
var totalQuantity = 0;
$.each(lineTotals, function (i) {
grandTotal += parseFloat($(lineTotals[i]).text());
totalQuantity += parseInt($(quantityTotal[i]).val())
});
$('.totalquantity').text(totalQuantity);
$('.grandtotal').text(parseFloat(grandTotal).toFixed(2));
}
$(文档).ready(函数(){
$counter=1;
$('#按钮添加')。单击(函数(){
$counter++;
$('#invoiceitems>tbody:last')。追加('\
\
\
\
\
');
$('.quantity,.price').unbind().on('change',function(){
更新目录(本);
});
});
});
$(文档).ready(函数(){
$counter=1;
$(“#按钮删除”)。单击(函数(){
$counter++;
$('#invoiceitems>tbody tr:last').remove();
$('.quantity,.price').unbind().on('change',function(){
更新目录(本);
});
});
});
$(函数(){
计算亚总数();
计算总数();
//添加价格和价格的更改事件
//仅限数量字段。。
//改变总数不应该影响任何事情
$('.quantity,.price')。on('change',function(){
更新目录(本);
});
});
函数UpdateTotals(elem){
//这将给出已更改元素的tr
var$container=$(elem.parent().parent();
var数量=$container.find('.quantity').val();
var price=$container.find('.price').val();
var per_pack=$container.find('.per_pack').val();
var小计=parseInt(数量)*parseFloat(价格)/parseInt(每包);
$container.find('.subtotal').text(subtotal.toFixed(2));
计算总数();
}
函数CalculateSubTotals(){
//当页面加载时,计算
//第一次
var lineTotals=$('小计');
变量数量=$('.quantity');
风险值价格=$(“.price”);
每包变量=$('.每包');
$。每个(行总数,函数(i){
var tot=parseInt($(数量[i]).val())*parseFloat($(价格[i]).val())/parseInt($(每包[i]).val());
元(行总数[i])文本(tot.toFixed(2);;
});
}
函数计算器总计(){
//这将通过小计和
//在这里计算总数和数量
var lineTotals=$('小计');
变量quantityTotal=$('.quantity');
var grandTotal=0.0;
var totalQuantity=0;
$。每个(行总数,函数(i){
grandTotal+=parseFloat($(lineTotals[i]).text());
totalQuantity+=parseInt($(quantityTotal[i]).val())
});
$('.totalquantity')。文本(totalquantity);
$('.grandtotal').text(parseFloat(grandtotal).toFixed(2));
}
您的主要问题:JavaScript中的多行字符串必须在每行上以反斜杠结尾
这是什么导致没有任何工作
控制台错误:
未捕获的语法错误:意外标记<
错误字符串的示例:
var string = "abc
def
ghi";
正确的例子:
var string = "abc\
def\
ghi";
首先从HTML中删除
'[.1.]
,使用[1]
只需像这样
<input type="text" name="item[1][paper]" class="regular-text"
value="Glossy Paper A5" />
而删除行
应该是这样的
$('table#invoiceitems').on('click','.buttondelete',function () {
$counter++;
if($('table#invoiceitems tbody tr').length==1){
alert('Cant delete single row');
return false;
}
$(this).closest('tr').remove();
});
完整代码
$(document).ready(function () {
$counter = 1;
$('#buttonadd').click(function () {
$counter++;
$('#invoiceitems > tbody:last').append('<tr><td><input type="button" class="buttondelete" value="Delete"/></td>\
<td><input type="text" name="item[' + $counter + '][paper]" class="regular-text" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][price]" class="price" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][per_pack]" class="per_pack" value="" /></td>\
<td><input type="text" name="item[' + $counter + '][quantity]" class="quantity" value="" /></td>\
<td><label class="subtotal"></label> </td></tr>');
});
$('table#invoiceitems').on('change', '.quantity , .price',function () {
UpdateTotals(this);
});
$counter = 1;
$('table#invoiceitems').on('click','.buttondelete',function () {
$counter++;
if($('table#invoiceitems tbody tr').length==1){
alert('Cant delete single row');
return false;
}
$(this).closest('tr').remove();
});
CalculateSubTotals();
CalculateTotal();
});
function UpdateTotals(elem) {
// This will give the tr of the Element Which was changed
var $container = $(elem).parent().parent();
var quantity = $container.find('.quantity').val();
var price = $container.find('.price').val();
var per_pack = $container.find('.per_pack').val();
var subtotal = parseInt(quantity) * parseFloat(price) / parseInt(per_pack);
$container.find('.subtotal').text(subtotal.toFixed(2));
CalculateTotal();
}
function CalculateSubTotals() {
// Calculate the Subtotals when page loads for the
// first time
var lineTotals = $('.subtotal');
var quantity = $('.quantity');
var price = $('.price');
var per_pack = $('.per_pack');
$.each(lineTotals, function (i) {
var tot = parseInt($(quantity[i]).val()) * parseFloat($(price[i]).val()) / parseInt($(per_pack[i]).val());
$(lineTotals[i]).text(tot.toFixed(2));
});
}
function CalculateTotal() {
// This will Itearate thru the subtotals and
// claculate the grandTotal and Quantity here
var lineTotals = $('.subtotal');
var quantityTotal = $('.quantity');
var grandTotal = 0.0;
var totalQuantity = 0;
$.each(lineTotals, function (i) {
grandTotal += parseFloat($(lineTotals[i]).text());
totalQuantity += parseInt($(quantityTotal[i]).val())
});
$('.totalquantity').text(totalQuantity);
$('.grandtotal').text(parseFloat(grandTotal).toFixed(2));
}
$(文档).ready(函数(){
$counter=1;
$('#按钮添加')。单击(函数(){
$counter++;
$('#invoiceitems>tbody:last')。追加('\
\
\
\
\
');
});
$('table#invoiceitems')。关于('change','quantity,'price',function(){
更新目录(本);
});
$counter=1;
$('table#invoiceitems')。在('click','buttondelete',函数(){
$counter++;
如果($('table#invoiceitems tbody tr')。长度==1){
警报(“无法删除单行”);
返回false;
}
$(this).closest('tr').remove();
});
计算亚总数();
计算总数();
});
函数UpdateTotals(elem){
//这将给出已更改元素的tr
var$container=$(elem.parent().parent();
var数量=$container.find('.quantity').val();
var price=$container.find('.price').val();
var per_pack=$container.find('.per_pack').val();
var小计=parseInt(数量)*parseFloat(价格)/parseInt(每包);
$container.find('.subtotal').text(subtotal.toFixed(2));
计算总数();
}
函数CalculateSubTotals(){
//当页面加载时,计算
//第一次
var lineTotals=$('小计');
变量数量=$('.quantity');
风险值价格=$(“.price”);
每包变量=$('.每包');
$。每个(行总数,函数(i){
var tot=parseInt($(数量[i]).val())*parseFloat($(价格[i]).val())/parseInt($(每包[i]).val());
元(行总数[i])文本(tot.toFixed(2);;
});
}
函数计算器总计(){
//这将通过小计和
//在这里计算总数和数量
var lineTotals=$('小计');
var quantityTotal