无法使用jQuery Datatables获取列值总和(复选框已选中)。我正在尝试动态添加金额列的总和。如果我们取消选中,金额将自动减少。我尝试了下面的代码。请问可能有什么问题?
$(document).ready(function() {
var creditAmount =0
$('#firstTable').DataTable();
$("#firstTable").on('change', function(){
var checkedCount = $("#firstTable input:checked").length;
for (var i = 0; i < checkedCount; i++) {
var amount = $(this).find('td:eq(4)').text();
alert(amount);
if (amount != "") {
creditAmount += parseFloat(amount);
} else {
creditAmount = 0;
}
}
$("#idSmofAmount").text(creditAmount);
});
} );
<link href="https://cdn.datatables.net/1.10.22/css/jquery.dataTables.min.css" rel="stylesheet"/>
<script src="https://code.jquery.com/jquery-3.5.1.js"></script>
<script src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
<div>
Count:: <span ="idSmofAmount"></span>
</div>
<table id="firstTable" class="display" cellspacing="0" width="100%">
<thead>
<tr>
<th><input type="checkbox"/></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Amount</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</thead>
<tfoot>
<tr>
<th><input type="checkbox"/></th>
<th>Name</th>
<th>Position</th>
<th>Office</th>
<th>Age</th>
<th>Start date</th>
<th>Salary</th>
</tr>
</tfoot>
<tbody>
<tr>
<td><input type="checkbox"/></td>
<td>Tiger Nixon</td>
<td>System Architect</td>
<td>Edinburgh</td>
<td>61</td>
<td>2011/04/25</td>
<td>$320,800</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Garrett Winters</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>63</td>
<td>2011/07/25</td>
<td>$170,750</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Ashton Cox</td>
<td>Junior Technical Author</td>
<td>San Francisco</td>
<td>66</td>
<td>2009/01/12</td>
<td>$86,000</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Cedric Kelly</td>
<td>Senior Javascript Developer</td>
<td>Edinburgh</td>
<td>22</td>
<td>2012/03/29</td>
<td>$433,060</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Airi Satou</td>
<td>Accountant</td>
<td>Tokyo</td>
<td>33</td>
<td>2008/11/28</td>
<td>$162,700</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Brielle Williamson</td>
<td>Integration Specialist</td>
<td>New York</td>
<td>61</td>
<td>2012/12/02</td>
<td>$372,000</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Herrod Chandler</td>
<td>Sales Assistant</td>
<td>San Francisco</td>
<td>59</td>
<td>2012/08/06</td>
<td>$137,500</td>
</tr>
<tr>
<td><input type="checkbox"/></td>
<td>Rhona Davidson</td>
<td>Integration Specialist</td>
<td>Tokyo</td>
<td>55</td>
<td>2010/10/14</td>
<td>$327,900</td>
</tr>
</tbody>
</table>