javascript - 如何动态更新 DataTable 中的单元格?
问题描述
我正在使用这个数据表。
我的代码如下
table = $('#invoices-table').DataTable({ ordering: false });
var currentPage = table.page();
rowNode = table.row.add([
table_sr_no,
'<a href="/view_debit_notes/' + data.id + '" class="view_debit_notes">' + data.debitnote_no + '</a>',
'<td class="text-right">' + data.total + '</td>',
'Serial No',
'',
'<a href="/seller/number">Active</a>',
''
]).draw();
var index = 0,
rowCount = table.data().length - 1,
insertedRow = table.row(rowCount).data(),
tempRow;
for (var i = rowCount; i > index; i--) {
tempRow = table.row(i - 1).data();
table.row(i).data(tempRow);
table.row(i - 1).data(insertedRow);
}
table.page(currentPage).draw(false);
我在先前生成的表中使用下面的代码在第一个位置插入一行。
rowNode = table.row.add([
table_sr_no,
'<a href="/view_debit_notes/' + data.id + '" class="view_debit_notes">' + data.debitnote_no + '</a>',
'<td class="text-right">' + data.total + '</td>',
'Serial No',
'',
'<a href="/seller/number">Active</a>',
''
]).draw();
我想我必须在下面的代码中做一些事情来重新生成新的序列号
for (var i = rowCount; i > index; i--) {
tempRow = table.row(i - 1).data();
table.row(i).data(tempRow);
table.row(i - 1).data(insertedRow);
}
如何动态生成 Serial ( table_sr_no ) Number ?
我需要如下序列号
解决方案
根据您的评论,我的理解是您希望第一列或多或少像自动增量一样,其中每个单元格都包含一个引用它在表格中的位置的数字。您可以将每行中的第一个单元格设置为其父行的索引,如下所示:
// select first cell in every row and iterate over them
$('#invoices-table tr td:first-child').each( function() {
// get a reference to the datatable's cell and assign
// the parent row's index as content
table.cell(this).data($(this).parent().index()+1);
});
// redraw the table so new cell data will work with sorting and filtering
table.draw();
更新:
我将在这里提供另一种解决方案,因为我意识到上述方法将在当前不可见的分页/行的表上失败。Datatables 提供了它自己的each()
方法,可以在集合中的节点上调用。要使用它,您可以执行以下操作:
table.cells(':first-child').nodes().each(function(node, index) {
table.cell(node).data(index + 1);
});
您会注意到这与我最初建议的非常相似,但它具有访问所有行而不仅仅是可见行的额外好处。
这是一个片段演示:
var dataSet = [
["", "Tiger Nixon", "System Architect", "Edinburgh", "5421", "2011/04/25", "$320,800"],
["", "Garrett Winters", "Accountant", "Tokyo", "8422", "2011/07/25", "$170,750"],
["", "Ashton Cox", "Junior Technical Author", "San Francisco", "1562", "2009/01/12", "$86,000"],
["", "Cedric Kelly", "Senior Javascript Developer", "Edinburgh", "6224", "2012/03/29", "$433,060"],
["", "Airi Satou", "Accountant", "Tokyo", "5407", "2008/11/28", "$162,700"],
["", "Brielle Williamson", "Integration Specialist", "New York", "4804", "2012/12/02", "$372,000"],
["", "Herrod Chandler", "Sales Assistant", "San Francisco", "9608", "2012/08/06", "$137,500"],
["", "Rhona Davidson", "Integration Specialist", "Tokyo", "6200", "2010/10/14", "$327,900"],
["", "Colleen Hurst", "Javascript Developer", "San Francisco", "2360", "2009/09/15", "$205,500"],
["", "Sonya Frost", "Software Engineer", "Edinburgh", "1667", "2008/12/13", "$103,600"],
["", "Jena Gaines", "Office Manager", "London", "3814", "2008/12/19", "$90,560"],
["", "Quinn Flynn", "Support Lead", "Edinburgh", "9497", "2013/03/03", "$342,000"],
["", "Charde Marshall", "Regional Director", "San Francisco", "6741", "2008/10/16", "$470,600"],
["", "Haley Kennedy", "Senior Marketing Designer", "London", "3597", "2012/12/18", "$313,500"],
["", "Tatyana Fitzpatrick", "Regional Director", "London", "1965", "2010/03/17", "$385,750"],
["", "Michael Silva", "Marketing Designer", "London", "1581", "2012/11/27", "$198,500"],
["", "Paul Byrd", "Chief Financial Officer (CFO)", "New York", "3059", "2010/06/09", "$725,000"],
["", "Gloria Little", "Systems Administrator", "New York", "1721", "2009/04/10", "$237,500"],
["", "Bradley Greer", "Software Engineer", "London", "2558", "2012/10/13", "$132,000"],
["", "Dai Rios", "Personnel Lead", "Edinburgh", "2290", "2012/09/26", "$217,500"],
["", "Jenette Caldwell", "Development Lead", "New York", "1937", "2011/09/03", "$345,000"],
["", "Yuri Berry", "Chief Marketing Officer (CMO)", "New York", "6154", "2009/06/25", "$675,000"],
["", "Caesar Vance", "Pre-Sales Support", "New York", "8330", "2011/12/12", "$106,450"],
["", "Doris Wilder", "Sales Assistant", "Sidney", "3023", "2010/09/20", "$85,600"],
["", "Angelica Ramos", "Chief Executive Officer (CEO)", "London", "5797", "2009/10/09", "$1,200,000"],
["", "Gavin Joyce", "Developer", "Edinburgh", "8822", "2010/12/22", "$92,575"],
["", "Jennifer Chang", "Regional Director", "Singapore", "9239", "2010/11/14", "$357,650"],
["", "Brenden Wagner", "Software Engineer", "San Francisco", "1314", "2011/06/07", "$206,850"],
["", "Fiona Green", "Chief Operating Officer (COO)", "San Francisco", "2947", "2010/03/11", "$850,000"],
["", "Shou Itou", "Regional Marketing", "Tokyo", "8899", "2011/08/14", "$163,000"],
["", "Michelle House", "Integration Specialist", "Sidney", "2769", "2011/06/02", "$95,400"],
["", "Suki Burks", "Developer", "London", "6832", "2009/10/22", "$114,500"],
["", "Prescott Bartlett", "Technical Author", "London", "3606", "2011/05/07", "$145,000"],
["", "Gavin Cortez", "Team Leader", "San Francisco", "2860", "2008/10/26", "$235,500"],
["", "Martena Mccray", "Post-Sales support", "Edinburgh", "8240", "2011/03/09", "$324,050"],
["", "Unity Butler", "Marketing Designer", "San Francisco", "5384", "2009/12/09", "$85,675"]
];
$(document).ready(function() {
var table = $('#example').DataTable({
data: dataSet,
columns: [
{title: "Row ID"},
{title: "Name"},
{title: "Position"},
{title: "Office"},
{title: "Extn."},
{title: "Start date"},
{title: "Salary"}
]
});
$('button').on('click', function() {
table.cells(':first-child').nodes().each(function(node, index) {
table.cell(node).data(index + 1);
});
// redraw table and keep current pagination
table.draw(false);
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<script src="https://cdn.datatables.net/1.10.19/js/jquery.dataTables.min.js"></script>
<link href="https://cdn.datatables.net/1.10.19/css/jquery.dataTables.min.css" rel="stylesheet" />
<button>Click to reindex table</button><br><br>
<table id="example" class="display" width="100%"></table>
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