我正在尝试使用jQuery的tablesorter插件和过滤器小部件。它导致标题中提到的错误。它转到jquery.tablesorter.widgets.js中的第374行，如下所示：
if (!c.$table.hasClass('hasFilters')) {
以下是文件中的整个过滤器小部件：
// Widget: filter
// **************************
ts.addWidget({
id: "filter",
priority: 50,
options : {
filter_childRows : false, // if true, filter includes child row content in the search
filter_columnFilters : true, // if true, a filter will be added to the top of each table column
filter_cssFilter : '', // css class name added to the filter row & each input in the row (tablesorter-filter is ALWAYS added)
filter_external : '', // jQuery selector string (or jQuery object) of external filters
filter_filteredRow : 'filtered', // class added to filtered rows; needed by pager plugin
filter_formatter : null, // add custom filter elements to the filter row
filter_functions : null, // add custom filter functions using this option
filter_hideEmpty : true, // hide filter row when table is empty
filter_hideFilters : false, // collapse filter row when mouse leaves the area
filter_ignoreCase : true, // if true, make all searches case-insensitive
filter_liveSearch : true, // if true, search column content while the user types (with a delay)
filter_onlyAvail : 'filter-onlyAvail', // a header with a select dropdown & this class name will only show available (visible) options within the drop down
filter_placeholder : { search : '', select : '' }, // default placeholder text (overridden by any header "data-placeholder" setting)
filter_reset : null, // jQuery selector string of an element used to reset the filters
filter_saveFilters : false, // Use the $.tablesorter.storage utility to save the most recent filters
filter_searchDelay : 300, // typing delay in milliseconds before starting a search
filter_selectSource : null, // include a function to return an array of values to be added to the column filter select
filter_startsWith : false, // if true, filter start from the beginning of the cell contents
filter_useParsedData : false, // filter all data using parsed content
filter_serversideFiltering : false, // if true, server-side filtering should be performed because client-side filtering will be disabled, but the ui and events will still be used.
filter_defaultAttrib : 'data-value' // data attribute in the header cell that contains the default filter value
},
format: function(table, c, wo) {
if (!c.$table.hasClass('hasFilters')) {
ts.filter.init(table, c, wo);
}
},
remove: function(table, c, wo) {
var tbodyIndex, $tbody,
$table = c.$table,
$tbodies = c.$tbodies;
$table
.removeClass('hasFilters')
// add .tsfilter namespace to all BUT search
.unbind('addRows updateCell update updateRows updateComplete appendCache filterReset filterEnd search '.split(' ').join(c.namespace + 'filter '))
.find('.' + ts.css.filterRow).remove();
for (tbodyIndex = 0; tbodyIndex < $tbodies.length; tbodyIndex++ ) {
$tbody = ts.processTbody(table, $tbodies.eq(tbodyIndex), true); // remove tbody
$tbody.children().removeClass(wo.filter_filteredRow).show();
ts.processTbody(table, $tbody, false); // restore tbody
}
if (wo.filter_reset) {
$(document).undelegate(wo.filter_reset, 'click.tsfilter');
}
}
});
编辑：这就是我调用tablesorter的方式。
$("#messageTable").tablesorter({
theme: 'blue',
widthFixed: true,
widgets: ["zebra", "filter"],
widgetOptions: {
filter_columnFilters: true,
filter_hideFilters: true,
filter_ignoreCase: true,
filter_liveSearch: false,
filter_filterRow: 'filtered',
filter_searchDelay: 300,
filter_serversideFiltering: false
}
});