reset to default sorting in jquery datatable

问题

I have a page on which one dropdown as Report1 and Report2 is there. If I select Report1 it will populate startdate and enddate. I will select startdate and end date then cliick on view report it will do ajax call and fetch the data and displaying in table, I am using datatable for this.

I have default sorting of the second coulmn and also I can able to sort other column. If I sort other column and then select the other report Report2 and then select startdate adn end date and then hit the view report button. Again If I select the Report1 and startdate and end date and hit the view report button, it is sorting the other column but not the default sorting column. Any help would be appreciable.

Below is my code

$('#userTable').dataTable({
                        "bProcessing" : false,
                        "bServerSide" : false,
                        "bFilter" : false,
                        "bSearchable" : false,
                        "oLanguage" : {
                            "sZeroRecords" : "No Active Users Found",
                            "sInfo" : "Total Records Found: _TOTAL_ "
                        },
                        "aaSorting" : [ [ 2, "asc" ] ],
                        "aoColumnDefs" : [ {
                            "mData" : "emailAddr",
                            "sWidth" : "20%",
                            "aTargets" : [ 0 ]
                        }, {
                            "mData" : null,
                            "sWidth" : "20%",
                            "mRender" : function(data, type, row) {
                                return row.firstNm + ' ' + row.lastNm;
                            },
                            "bSortable" : false,
                            "aTargets" : [ 1 ]
                        }, {
                            "mData" : "retailerId",
                            "sWidth" : "20%",
                            "aTargets" : [ 2 ]
                        }, {
                            "mData" : "role",
                            "sWidth" : "20%",
                            "aTargets" : [ 3 ]
                        }, {
                            "mData" : "contactPhone",
                            "bSortable" : false,
                            "sWidth" : "20%",
                            "aTargets" : [ 4 ]
                        } ],
                        "fnInfoCallback": function( oSettings, iStart, iEnd, iMax, iTotal, sPre ) {       
                            return 'Displaying '+iStart+' to '+iEnd+' of ' +iTotal + ' entries';
                }

回答1:

Please use this way:

var DTable = $("<your table>").dataTable ({
...
..
}

setInterval( function () {
        DTable.fnClearTable( 0 );
        DTable.fnSort( [ 0, "desc" ] );
        DTable.fnDraw();

    }, 5000 );

回答2:

If I understood you correctly you want to a function that will return the default order? If that is the case I think that the following will be helpfull:

http://datatables.net/plug-ins/api/fnSortNeutral

来源：https://stackoverflow.com/questions/22839241/reset-to-default-sorting-in-jquery-datatable

标签

sorting

datatable

default