j查询动态表计算
jQuery dynamic table calculation
>我制作了一个动态表单/表格,但我无法正确计算新添加的行。
静态部分一切都很好,但是当我添加新行时,一行的 ID 和类与函数不匹配......根本不计算新添加的行。有人可以帮忙吗?
<div>
<h2>Offer</h2>
<form>
<table id="t1">
<tr>
<th><button type="button" class="addRow">Add</button></th>
<th>Quantity</th>
<th>Price per hour</th>
<th>Hours</th>
<th>Total</th>
</tr>
<tr>
<td><select name="personal"><optgroup label="Personal"><option value="köche">Köche</option><option value="barkeeper">Barkeeper</option><option value="garderobiere">Garderobiere</option><option value="chauffeure">Chauffeure</option><option value="oberkellner">Oberkellner</option><option value="serviceleitung">Serviceleitung</option><option value="hilfskoch">Hilfskoch</option><option value="servicekräfte">Servicekräfte</option></optgroup></select></td>
<td><input name="anzahl" class="amount" value="" /></td>
<td><input name="preisps" class="amount" value="" /></td>
<td><input name="stunden" class="amount" value="" /></td>
<td><input name="total" class="total" id="total1" value="" readonly="readonly" /></td>
</tr>
</table>
<br />
<table id="t2">
<tr>
<td>Netto =<br></td>
<td><input id="netto" readonly="readonly" name="netto" type="text" value=""></td>
</tr>
<tr>
<td>Steuer 19% =<br></td>
<td><input id="steuer" readonly="readonly" name="steuer" type="text" value=""></td>
</tr>
<tr>
<td>Brutto =<br></td>
<td><input id="brutto" readonly="readonly" name="brutto" type="text" value=""></td>
</tr>
</table>
<br>
<input type="submit" value="Submit">
<input type="reset" value="Reset">
</form>
</div>
<script>
// main function when page is opened
$(document).ready(function () {
// function for adding a new row
var r=1;
$('.addRow').click(function(){
r++;
$('#t1').append('<tr id="row'+r+'"><td><select name="personal"><optgroup label="Personal"><option value="köche">Köche</option><option value="barkeeper">Barkeeper</option><option value="garderobiere">Garderobiere</option><option value="chauffeure">Chauffeure</option><option value="oberkellner">Oberkellner</option><option value="serviceleitung">Serviceleitung</option><option value="hilfskoch">Hilfskoch</option><option value="servicekräfte">Servicekräfte</option></optgroup></select></td><td><input class="amount" value="" /></td><td><input class="amount" value="" /></td><td><input class="amount" value="" /></td><td><input class="total" value="" readonly="readonly" /></td><td><button type="button" name="remove" id="'+r+'" class="btn_remove">X</button></td></tr>');
});
// remove row when X is clicked
$(document).on('click', '.btn_remove', function(){
var button_id = $(this).attr("id");
$('#row'+button_id+'').remove();
});
// calculate everything
$(document).on("keyup", ".amount", calcAll);
});
// function for calculating everything
function calcAll() {
// calculate total for one row
var product = 1;
$(".amount").each(function () {
if (!isNaN(this.value) && this.value.length != 0) {
product *= parseFloat(this.value);
}
$("#total1").val(product.toFixed(2));
});
// sum all totals
var sum = 0;
$(".total").each(function () {
if (!isNaN(this.value) && this.value.length != 0) {
sum += parseFloat(this.value);
}
});
// show values in netto, steuer, brutto fields
$("#netto").val(sum.toFixed(2));
$("#steuer").val(sum.toFixed(2) * 0.19);
$("#brutto").val(parseFloat(sum.toFixed(2)) + parseFloat(($("#steuer").val())));
}
</script>
这是我的源代码:
http://jsfiddle.net/p2Hbm/86/
我做了一个关于如何在jsFiddle上执行此操作的示例:https://jsfiddle.net/gtcazp7s/
// main function when page is opened
$(document).ready(function () {
// function for adding a new row
var r = 1;
$('.addRow').click(function () {
r++;
$('#t1').append('<tr id="row' + r + '" class="item"><td><select name="personal"><optgroup label="Personal"><option value="köche">Köche</option><option value="barkeeper">Barkeeper</option><option value="garderobiere">Garderobiere</option><option value="chauffeure">Chauffeure</option><option value="oberkellner">Oberkellner</option><option value="serviceleitung">Serviceleitung</option><option value="hilfskoch">Hilfskoch</option><option value="servicekräfte">Servicekräfte</option></optgroup></select></td><td><input class="qnty amount" value="" /></td><td><input class="price amount" value="" /></td><td><input class="hours amount" value="" /></td><td><input class="total" value="" readonly="readonly" /></td><td><button type="button" name="remove" id="' + r + '" class="btn_remove">X</button></td></tr>');
});
// remove row when X is clicked
$(document).on('click', '.btn_remove', function () {
var button_id = $(this).attr("id");
$('#row' + button_id + '').remove();
});
// calculate everything
$(document).on("keyup", ".amount", calcAll);
//$(".amount").on("change", calcAll);
});
// function for calculating everything
function calcAll() {
// calculate total for one row
$(".item").each(function () {
var qnty = 1;
var price = 1;
var hours = 1;
var total = 1;
if (!isNaN(parseFloat($(this).find(".qnty").val()))) {
qnty = parseFloat($(this).find(".qnty").val());
}
if (!isNaN(parseFloat($(this).find(".price").val()))) {
price = parseFloat($(this).find(".price").val());
}
if (!isNaN(parseFloat($(this).find(".hours").val()))) {
hours = parseFloat($(this).find(".hours").val());
}
total = qnty * price * hours;
$(this).find(".total").val(total.toFixed(2));
});
//$(".amount").each(function () {
// if (!isNaN(this.value) && this.value.length != 0) {
// product *= parseFloat(this.value);
// }
// $("#total1").val(product.toFixed(2));
// if (!isNaN($(this).find(".qnty"))) {
// }
//});
// sum all totals
var sum = 0;
$(".total").each(function () {
if (!isNaN(this.value) && this.value.length != 0) {
sum += parseFloat(this.value);
}
});
// show values in netto, steuer, brutto fields
// show values in netto, steuer, brutto fields
$("#netto").val(sum.toFixed(2));
$("#steuer").val(parseFloat(sum * 0.19).toFixed(2));
$("#brutto").val(parseFloat(sum.toFixed(2) + parseFloat(($("#steuer").val()))).toFixed(2));
}
这是 html 部分:
<div>
<h2>Offer</h2>
<form>
<table id="t1">
<tr>
<th><button type="button" class="addRow">Add</button></th>
<th>Quantity</th>
<th>Price per hour</th>
<th>Hours</th>
<th>Total</th>
</tr>
<tr class="item">
<td><select name="personal"><optgroup label="Personal"><option value="köche">Köche</option><option value="barkeeper">Barkeeper</option><option value="garderobiere">Garderobiere</option><option value="chauffeure">Chauffeure</option><option value="oberkellner">Oberkellner</option><option value="serviceleitung">Serviceleitung</option><option value="hilfskoch">Hilfskoch</option><option value="servicekräfte">Servicekräfte</option></optgroup></select></td>
<td><input name="anzahl" class="qnty amount" value="" /></td>
<td><input name="preisps" class="price amount" value="" /></td>
<td><input name="stunden" class="hours amount" value="" /></td>
<td><input name="total" class="total" id="total1" value="" readonly="readonly" /></td>
</tr>
</table>
<br />
<table id="t2">
<tr>
<td>Netto =<br></td>
<td><input id="netto" readonly="readonly" name="netto" type="text" value=""></td>
</tr>
<tr>
<td>Steuer 19% =<br></td>
<td><input id="steuer" readonly="readonly" name="steuer" type="text" value=""></td>
</tr>
<tr>
<td>Brutto =<br></td>
<td><input id="brutto" readonly="readonly" name="brutto" type="text" value=""></td>
</tr>
</table>
<br>
<input type="submit" value="Submit">
<input type="reset" value="Reset">
</form>
</div>
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