javascript 如何在数据表的特定列上禁用搜索/过滤器？
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How to disable a search/filter on a specific column on a datatable?
提问by user3818592
My datatable has 5 columns and I need to disable filtering for the 3rd, 4th and last column.
我的数据表有 5 列，我需要禁用第 3、4 和最后一列的过滤。
please help!!!
请帮忙！！！
this is the javascript:
这是javascript：
<script type="text/javascript" language="javascript" class="init">
$(document).ready(function() {
// Setup - add a text input to each footer cell
$('#example tfoot th').each( function () {
var title = $('#example thead th').eq( $(this).index() ).text();
$(this).html( '<input type="text" placeholder="Search '+title+'" />' );
} );
// DataTable
var table = $('#example').DataTable();
// Apply the search
table.columns().eq( 0 ).each( function ( colIdx ) {
$( 'input', table.column( colIdx ).footer() ).on( 'keyup change', function () {
table
.column( colIdx )
.search( this.value )
.draw();
} );
} );
} );
</script>
回答by Stryner
You can use .notto exclude the columns you want to add input text too. Furthermore, you can also add code to avoid adding event handlers to any input boxes in the excluded columns (although if no input boxes exist in those cells it doesn't matter):
您也可以使用.not排除要添加输入文本的列。此外，您还可以添加代码以避免将事件处理程序添加到排除列中的任何输入框（尽管如果这些单元格中不存在输入框也没关系）：
$(document).ready(function() {
// Setup - add a text input to each footer cell
$('#example tfoot th').not(":eq(2),:eq(3),:eq(4)") //Exclude columns 3, 4, and 5
.each( function () {
var title = $('#example thead th').eq( $(this).index() ).text();
$(this).html( '<input type="text" placeholder="Search '+title+'" />' );
} );
// DataTable
var table = $('#example').DataTable();
// Apply the search
table.columns().eq( 0 ).each( function ( colIdx ) {
if (colIdx == 2 || colIdx == 3 || colIdx == 4) return; //Do not add event handlers for these columns
$( 'input', table.column( colIdx ).footer() ).on( 'keyup change', function () {
table
.column( colIdx )
.search( this.value )
.draw();
} );
} );
} );
See Fiddle: http://jsfiddle.net/30phqqqg/1/
回答by Ulee
The same story for columns with filtering. 2nd column filtering disable:
具有过滤功能的列也是如此。第二列过滤禁用：
$(document).ready(function() {
$('#example').DataTable( {
initComplete: function () {
this.api().columns().every( function () {
var column = this;
var some = column.index();
if (column.index() == 1) return;
var select = $('<select><option value=""></option></select>')
.appendTo( $(column.footer()).empty() )
.on( 'change', function () {
var val = $.fn.dataTable.util.escapeRegex(
$(this).val()
);
column
.search( val ? '^'+val+'$' : '', true, false )
.draw();
} );
column.data().unique().sort().each( function ( d, j ) {
select.append( '<option value="'+d+'">'+d+'</option>' )
} );
} );
}})
};
