我当前正在使用http://jsfiddle.net/qaa35/的示例。我试图在Chrome/IE浏览器中运行代码段,但我无法如小提琴所示获得结果。这是我在index.html
中拥有的,它与小提琴完全相同:
<table class="order-list">
<thead>
<tr>
<td>Product</td>
<td>Price</td>
<td>Qty</td>
<td>Total</td>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" name="product" /></td>
<td>$<input type="text" name="price" /></td>
<td><input type="text" name="qty" /></td>
<td>$<input type="text" name="linetotal" readonly="readonly"/></td>
<td><a class="deleteRow"> x </a></td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="5" style="text-align: center;">
<input type="button" id="addrow" value="Add Product" />
</td>
</tr>
<tr>
<td colspan="5">
Grand Total: $<span id="grandtotal"></span>
</td>
</tr>
</tfoot>
</table>
<script>
$(document).ready(function () {
var counter = 1;
$("#addrow").on("click", function () {
counter++;
var newRow = $("<tr>");
var cols = "";
cols += '<td><input type="text" name="product' + counter + '"/></td>';
cols += '<td>$<input type="text" name="price' + counter + '"/></td>';
cols += '<td><input type="text" name="qty' + counter + '"/></td>';
cols += '<td>$<input type="text" name="linetotal' + counter + '" readonly="readonly"/></td>';
cols += '<td><a class="deleteRow"> x </a></td>';
newRow.append(cols);
$("table.order-list").append(newRow);
});
$("table.order-list").on("change", 'input[name^="price"], input[name^="qty"]', function (event) {
calculateRow($(this).closest("tr"));
calculateGrandTotal();
});
$("table.order-list").on("click", "a.deleteRow", function (event) {
$(this).closest("tr").remove();
calculateGrandTotal();
});
});
function calculateRow(row) {
var price = +row.find('input[name^="price"]').val();
var qty = +row.find('input[name^="qty"]').val();
row.find('input[name^="linetotal"]').val((price * qty).toFixed(2));
}
function calculateGrandTotal() {
var grandTotal = 0;
$("table.order-list").find('input[name^="linetotal"]').each(function () {
grandTotal += +$(this).val();
});
$("#grandtotal").text(grandTotal.toFixed(2));
}
</script>
但是,我无法获得总数。我也无法添加/删除行:结果的屏幕截图
我该如何使它起作用?
谢谢!
您的代码需要jQuery。因此,您只是忘记将其包括在您的项目中或错误地将其包含在项目中。您只需将此脚本添加到您的HTML:
即可从CDN导入jQuery<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
证明一切都可以与jQuery一起使用,这是您的代码带有导入的jQuery:
$(document).ready(function () {
var counter = 1;
$("#addrow").on("click", function () {
counter++;
var newRow = $("<tr>");
var cols = "";
cols += '<td><input type="text" name="product' + counter + '"/></td>';
cols += '<td>$<input type="text" name="price' + counter + '"/></td>';
cols += '<td><input type="text" name="qty' + counter + '"/></td>';
cols += '<td>$<input type="text" name="linetotal' + counter + '" readonly="readonly"/></td>';
cols += '<td><a class="deleteRow"> x </a></td>';
newRow.append(cols);
$("table.order-list").append(newRow);
});
$("table.order-list").on("change", 'input[name^="price"], input[name^="qty"]', function (event) {
calculateRow($(this).closest("tr"));
calculateGrandTotal();
});
$("table.order-list").on("click", "a.deleteRow", function (event) {
$(this).closest("tr").remove();
calculateGrandTotal();
});
});
function calculateRow(row) {
var price = +row.find('input[name^="price"]').val();
var qty = +row.find('input[name^="qty"]').val();
row.find('input[name^="linetotal"]').val((price * qty).toFixed(2));
}
function calculateGrandTotal() {
var grandTotal = 0;
$("table.order-list").find('input[name^="linetotal"]').each(function () {
grandTotal += +$(this).val();
});
$("#grandtotal").text(grandTotal.toFixed(2));
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table class="order-list">
<thead>
<tr>
<td>Product</td>
<td>Price</td>
<td>Qty</td>
<td>Total</td>
</tr>
</thead>
<tbody>
<tr>
<td><input type="text" name="product" /></td>
<td>$<input type="text" name="price" /></td>
<td><input type="text" name="qty" /></td>
<td>$<input type="text" name="linetotal" readonly="readonly"/></td>
<td><a class="deleteRow"> x </a></td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="5" style="text-align: center;">
<input type="button" id="addrow" value="Add Product" />
</td>
</tr>
<tr>
<td colspan="5">
Grand Total: $<span id="grandtotal"></span>
</td>
</tr>
</tfoot>
</table>