我正在使用dataTables插件并重新使用我在另一个页面上的代码来使用select
来过滤一个特定的列。如果无法正确过滤,我会感到困惑,因为它与我之前使用过的代码相同。
经过检查,我现在刚刚发现原因是使用带有dataTables的子行 - http://datatables.net/examples/api/row_details.html
HTML
<select name="col4_filter" id="col4_filter">
<option value="">All</option>
<!-- Other Options -->
</select>
<table>
<thead>
<tr>
<th>1</th>
<th>2</th>
<th>3</th>
<th>4</th>
<th>5</th>
<th>6</th>
</tr>
</thead>
<tbody>
<tr>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
<td></td>
</tr>
</tbody>
</table>
jQuery(相当多,但所有dataTables相关)
if (!jQuery().dataTable) {
return;
}
/*
* Insert a 'details' column to the table
*/
var nCloneTh = document.createElement('th');
var nCloneTd = document.createElement('td');
nCloneTd.innerHTML = '<span class="row-details row-details-close"></span>';
$('table thead tr').each(function() {
this.insertBefore(nCloneTh, this.childNodes[0]);
});
$('table tbody tr').each(function() {
this.insertBefore(nCloneTd.cloneNode(true), this.childNodes[0]);
});
var oTable = $('table').dataTable({
"sDom": 'T<"clear">lfrtip',
"aaSorting": [],
"aLengthMenu": [
[15, 20, -1],
[15, 20, "All"] // change per page values here
],
// set the initial value
"iDisplayLength": 15,
"sPaginationType": "bootstrap",
"oLanguage": {
"sLengthMenu": "_MENU_ records",
"oPaginate": {
"sPrevious": "Prev",
"sNext": "Next"
}
}
});
/* Formatting function for row details */
function fnFormatDetails (oTable, nTr, row_id) {
var id = row_id.split('_').pop();
var sOut = '<table>';
sOut += '<tr><td id="details_' + id + '">Finding Child Rows... <img src="/images/portal/loading.gif" alt="Finding Child Rows..." /></td></tr>';
sOut += '</table>';
$.ajax({
type: 'GET',
url: '/ajax_find_child_rows',
dataType: "html",
data: { id: id },
success: function(data) {
$('#details_' + id).html(data);
},
error: function() {
$('#details_' + id).html('No child rows found');
}
});
return sOut;
}
/* Add event listener for opening and closing details
* Note that the indicator for showing which row is open is not controlled by DataTables,
* rather it is done here
*/
$('table').on('click', 'tbody td .row-details', function() {
var nTr = $(this).parents('tr')[0];
if (oTable.fnIsOpen(nTr)) {
/* This row is already open - close it */
$(this).addClass("row-details-close").removeClass("row-details-open");
oTable.fnClose(nTr);
} else {
/* Open this row */
var row_id = ($(this).parent().parent().attr('id'));
$(this).addClass("row-details-open").removeClass("row-details-close");
oTable.fnOpen(nTr, fnFormatDetails(oTable, nTr, row_id), 'details');
}
});
function fnFilterColumn(i) {
oTable.fnFilter($('#col'+(i+1)+'_filter').val(), i);
}
$("#col4_filter").change( function() { fnFilterColumn(3); });
症状是过滤器无法工作并在选择空白选项时重置。
e.g。只是在索引中添加一个不起作用:
$("#col4_filter").change( function() { fnFilterColumn(4); }); // 4 instead of 3 (selector doesn't matter just now)
并且在失败的过滤器之后重置select
后,过滤器不会重置。
奇怪的是,如果我使用上一列($("#col4_filter").change( function() { fnFilterColumn(2); });
),那么它会因某种原因而起作用。
我猜测列插入会弄乱过滤器,因为列的索引已关闭。
答案 0 :(得分:0)
道歉,刚刚意识到我的错误。
function fnFilterColumn(i) {
oTable.fnFilter($('#col4_filter').val(), i); // hard-coding selector
}
$("#col4_filter").change( function() { fnFilterColumn(4); }); // add 1 to the column index to account for dynamically added column
我找到了错误,我没有记住,当我更改列索引时,fnFilterColumn
将寻找一个不存在的元素值来过滤。