问TableSorter -将图标应用于未排序的列

EN

.tablesorter-headerSortDown {
    background-image: url("../images/sort_down.png");
    background-size: 16px 16px;
}
.tablesorter-headerSortUp   {
    background-image: url("../images/sort_up.png");
    background-size: 16px 16px;
}

$(function() {
  $(".tablesorter")
    .tablesorter({
      widthFixed: false,
      sortList: [
            [0,0],
            [1,0]
        ],
        showProcessing: true,


      // this is the default setting
      cssChildRow: "tablesorter-childRow",

      // initialize zebra and filter widgets
      widgets: ["zebra", "filter", "stickyHeaders"],

      headers: { 0: { filter: true, sorter: true },
                 1: { filter: true, sorter: true },
                 2: { filter: false, sorter: true },
                 3: { filter: false, sorter: true },
                 4: { filter: false, sorter: false },
                 5: { filter: false, sorter: false },
                 6: { filter: false, sorter: false },
                 7: { filter: false, sorter: false },
                 8: { filter: false, sorter: false }},

      widgetOptions: {
        stickyHeaders_attachTo: '#connectionGrid',
        stickyHeaders_offset: 0,
        stickyHeaders_yScroll : '#tablesorter',
        stickyHeaders_addCaption: true,
        // include child row content while filtering, if true
        filter_childRows  : true,
        // class name applied to filter row and each input
        filter_cssFilter  : 'tablesorter-filter',
        filter_reset : '.clearall',
        // search from beginning
        filter_startsWith : false,
        // Set this option to false to make the searches case sensitive
        filter_ignoreCase : true,
        filter_functions : { 0 : true, 2 : true },
        sortInitialOrder: "desc",
        zebra : ["odd-row", "even-row" ]
      }

    });