jquery datatables sorting neglect null value

Question

I\'m using datatables and jQuery for making nice sortable tables. I now want to sort the rows an a value. This value is a numeric value. But it can also be not available, so

Answer 1

See this: http://jsfiddle.net/CYubV/

The first column in the table works like a normal column; the second column works like you ask.

Try custom sorting, something like this:

$.fn.dataTableExt.oSort['nullable-asc'] = function(a,b) {
    if (a == '-')
        return 1;
    else if (b == '-')
        return -1;
    else
    {
        var ia = parseInt(a);
        var ib = parseInt(b);
        return (ia ib) ? 1 : 0);
    }
}

$.fn.dataTableExt.oSort['nullable-desc'] = function(a,b) {
    if (a == '-')
        return 1;
    else if (b == '-')
        return -1;
    else
    {
        var ia = parseInt(a);
        var ib = parseInt(b);
        return (ia>ib) ? -1 : ((ia < ib) ? 1 : 0);
    }
}

$('#table').dataTable( {
    "bPaginate": false,
    "bFilter": false,
    "aoColumns": [
            null,
            {"bSortable": true, "sType": "nullable"}
                ],
} );