减去父行 [英] Subtract from parent rows
本文介绍了减去父行的处理方法，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
我正在尝试减去父标题行的值(它们是各自子行的总和)，但是它在显示减号的同时一直保持加法.我如何减去?
I'm trying to subtract the value of parent header rows (which are the sum of their respective child rows) but it just keeps on adding while displaying the minus symbol. How do I subtract?
jsFiddle
HTML:
<table class="table">
<tr class="parent-A">
<td>
<h5>A</h5>
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td>
<h6>A1</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
</tr>
<tr>
<td>
<h6>A2</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
</tr>
<tr>
<td>
<h6>A3</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
<td> </td>
<td>
<input type="text" data-parent="A" />
</td>
</tr>
<tr class="parent-B">
<td>
<h5>B</h5>
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td>
<h6>B1</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
</tr>
<tr>
<td>
<h6>B2</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
</tr>
<tr>
<td>
<h6>B3</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
<td> </td>
<td>
<input type="text" data-parent="B" />
</td>
</tr>
<tr class="total" data-par="A,B">
<td colspan="2">
<h4>Total A - B</h4>
</td>
<td colspan="2">
<input type="text" />
</td>
<td colspan="2">
<input type="text" />
</td>
<td>
<input type="text" />
</td>
</tr>
<tr class="parent-C">
<td>
<h5>C</h5>
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td>
<h6>C1</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
</tr>
<tr>
<td>
<h6>C2</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
</tr>
<tr>
<td>
<h6>C3</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
<td> </td>
<td>
<input type="text" data-parent="C" />
</td>
</tr>
<tr class="parent-D">
<td>
<h5>D</h5>
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
<td> </td>
<td>
<input type="text" />
</td>
</tr>
<tr>
<td>
<h6>D1</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
</tr>
<tr>
<td>
<h6>D2</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
</tr>
<tr>
<td>
<h6>D3</h6>
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
<td> </td>
<td>
<input type="text" data-parent="D" />
</td>
</tr>
<tr class="total" data-par="C,D">
<td colspan="2">
<h4>Total C - D</h4>
</td>
<td colspan="2">
<input type="text" />
</td>
<td colspan="2">
<input type="text" />
</td>
<td>
<input type="text" />
</td>
</tr>
</table>
jQuery:
$(function () {
$('[class*="parent-"] input').attr('readonly', true);
var total_par = $('tr.total');
$('input[type=text]').on('blur', function () {
var totals = [0, 0, 0],
parent_name = $(this).data('parent'),
find_parent_row = $('tr.parent-' + parent_name);
find_parent_row.nextUntil('[class*="parent-"]').find('input').each(function () {
totals[$(this).parent('td').index() / 2 - 1] += +this.value;
});
find_parent_row.find('input').each(function (i) {
this.value = totals[i];
});
total_par.each(function () {
totals = [0, 0, 0];
var par = $(this).data('par').split(',');
$('[data-parent="' + par[0] + '"]').add('[data-parent="' + par[1] + '"]').each(function () {
totals[$(this).parent('td').index() / 2 - 1] -= this.value; //subtract doesn't seem to be working!
});
$(this).find('input').val(function (i) {
return totals[i];
});
});
});
});
推荐答案
html
<tr class="total" data-par="A,B"> <!-- for A-B -->
<tr class="total" data-par="C,D"> <!-- for C-D -->
js
total_par.each(function () {
totals = [0, 0, 0];
var par = $(this).data('par').split(','); // par[0] = A and par[1] = B
$('[data-parent="' + par[0] + '"]').each(function () { //for A
totals[$(this).parent('td').index() / 2 - 1] += +this.value; // add all values
});
$('[data-parent="' + par[1] + '"]').each(function () {//for B
totals[$(this).parent('td').index() / 2 - 1] += -1 * +this.value;// subtract all values --> number is multiplied with -1 to make it negative and than added
});
$(this).find('input').val(function (i) {
return totals[i]; //assign values to current input element inside class total
});
});
或
total_par.each(function () {
totals = [0, 0, 0];
var par = $(this).data('par').split(',');
$('[data-parent="' + par[0] + '"]').each(function () {
totals[$(this).parent('td').index() / 2 - 1] += +this.value;
});
$('[data-parent="' + par[1] + '"]').each(function () {
totals[$(this).parent('td').index() / 2 - 1] -= +this.value;// subtract all values
});
$(this).find('input').val(function (i) {
return totals[i];
});
});
小提琴演示
find_parent_row.nextUntil('[class*="parent-"]').find('input[data-parent="' + parent_name + '"]').each(function () {
totals[$(this).parent('td').index() / 2 - 1] += +this.value;
});
添加了.find('input[data-parent="' + parent_name + '"]')
这篇关于减去父行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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