Deaktivieren Sie die automatische Sortierung in der ersten Spalte, wenn Sie jQuery DataTables verwenden.

Question

Ich verwende jQuery DataTables und habe mich gefragt, ob es möglich ist, die automatische Sortierung der ersten Spalte einer Tabelle zu deaktivieren?

Mein Code lautet wie folgt:

/* Default class modification */
        $.extend( $.fn.dataTableExt.oStdClasses, {
            "sWrapper": "dataTables_wrapper form-inline"
        } );

        /* API method to get paging information */
        $.fn.dataTableExt.oApi.fnPagingInfo = function ( oSettings )
        {
            return {
                "iStart":         oSettings._iDisplayStart,
                "iEnd":           oSettings.fnDisplayEnd(),
                "iLength":        oSettings._iDisplayLength,
                "iTotal":         oSettings.fnRecordsTotal(),
                "iFilteredTotal": oSettings.fnRecordsDisplay(),
                "iPage":          Math.ceil( oSettings._iDisplayStart / oSettings._iDisplayLength ),
                "iTotalPages":    Math.ceil( oSettings.fnRecordsDisplay() / oSettings._iDisplayLength )
            };
        }

        /* Bootstrap style pagination control */
        $.extend( $.fn.dataTableExt.oPagination, {
            "bootstrap": {
                "fnInit": function( oSettings, nPaging, fnDraw ) {
                    var oLang = oSettings.oLanguage.oPaginate;
                    var fnClickHandler = function ( e ) {
                        e.preventDefault();
                        if ( oSettings.oApi._fnPageChange(oSettings, e.data.action) ) {
                            fnDraw( oSettings );
                        }
                    };

                    $(nPaging).addClass('pagination').append(
                        '<ul>'+
                            '<li class="prev disabled"><a href="#">&larr; '+oLang.sPrevious+'</a></li>'+
                            '<li class="next disabled"><a href="#">'+oLang.sNext+' &rarr; </a></li>'+
                        '</ul>'
                    );
                    var els = $('a', nPaging);
                    $(els[0]).bind( 'click.DT', { action: "previous" }, fnClickHandler );
                    $(els[1]).bind( 'click.DT', { action: "next" }, fnClickHandler );
                },

                "fnUpdate": function ( oSettings, fnDraw ) {
                    var iListLength = 5;
                    var oPaging = oSettings.oInstance.fnPagingInfo();
                    var an = oSettings.aanFeatures.p;
                    var i, j, sClass, iStart, iEnd, iHalf=Math.floor(iListLength/2);

                    if ( oPaging.iTotalPages < iListLength) {
                        iStart = 1;
                        iEnd = oPaging.iTotalPages;
                    }
                    else if ( oPaging.iPage <= iHalf ) {
                        iStart = 1;
                        iEnd = iListLength;
                    } else if ( oPaging.iPage >= (oPaging.iTotalPages-iHalf) ) {
                        iStart = oPaging.iTotalPages - iListLength + 1;
                        iEnd = oPaging.iTotalPages;
                    } else {
                        iStart = oPaging.iPage - iHalf + 1;
                        iEnd = iStart + iListLength - 1;
                    }

                    for ( i=0, iLen=an.length ; i<iLen ; i++ ) {
                        // Remove the middle elements
                        $('li:gt(0)', an[i]).filter(':not(:last)').remove();

                        // Add the new list items and their event handlers
                        for ( j=iStart ; j<=iEnd ; j++ ) {
                            sClass = (j==oPaging.iPage+1) ? 'class="active"' : '';
                            $('<li '+sClass+'><a href="#">'+j+'</a></li>')
                                .insertBefore( $('li:last', an[i])[0] )
                                .bind('click', function (e) {
                                    e.preventDefault();
                                    oSettings._iDisplayStart = (parseInt($('a', this).text(),10)-1) * oPaging.iLength;
                                    fnDraw( oSettings );
                                } );
                        }

                        // Add / remove disabled classes from the static elements
                        if ( oPaging.iPage === 0 ) {
                            $('li:first', an[i]).addClass('disabled');
                        } else {
                            $('li:first', an[i]).removeClass('disabled');
                        }

                        if ( oPaging.iPage === oPaging.iTotalPages-1 || oPaging.iTotalPages === 0 ) {
                            $('li:last', an[i]).addClass('disabled');
                        } else {
                            $('li:last', an[i]).removeClass('disabled');
                        }
                    }
                }
            }
        });

        /* Show/hide table column */
        function dtShowHideCol( iCol ) {
            var oTable = $('#example-2').dataTable();
            var bVis = oTable.fnSettings().aoColumns[iCol].bVisible;
            oTable.fnSetColumnVis( iCol, bVis ? false : true );
        };

        /* Table #example */
        $(document).ready(function() {
            $('.datatable').dataTable( {
                "sDom": "<'row'<'span6'l><'span6'f>r>t<'row'<'span6'i><'span6'p>>",
                "sPaginationType": "bootstrap",                    
                "oLanguage": {
                    "sLengthMenu": "_MENU_ records per page"
                },
                "aoColumnDefs": [
                    { 
                        "bSortable": false, 
                        "aTargets": [ -1 ] // <-- gets last column and turns off sorting
                    } 
                ]
            });
            $('.datatable-controls').on('click','li input',function(){
                dtShowHideCol( $(this).val() );
            })
        });

Answer 1

将aaSorting选项设置为空数组。这将禁用初始排序，同时仍允许在单击列时进行手动排序。

"aaSorting": []

在较新的datatables版本（1.10.7版本）中，似乎有些变化。阻止DataTables自动按第一列排序的方法是将order选项设置为空数组。

您只需将以下参数添加到DataTables选项中即可：

"order": []

按照以下方式设置您的DataTable以覆盖默认设置：

$('#example').dataTable( {
    "order": [],
    // Your other options here...
} );

这将覆盖默认设置"order": [[ 0, 'asc' ]]。

您可以在此处找到有关order选项的更多详细信息。