paging server side does not work

eloysilva

i have:

in js:

$('#gridResults').dataTable({
"processing": true,
"serverSide": true,
"scrollY": "300px",
"scrollCollapse": true,
"bDestroy": true,

    "sPaginationType": "full_numbers",

    "ajax": {
        'type': 'GET',
        'url': urlBase + "api/SystemUser/GetList",
        'pages': 10,
        'data': request
    },
    "aoColumns": [
       {
           "sTitle": "SystemUserID", "mData": "SystemUserID", "bSearchable": false, "bSortable": false
       },
       { "sTitle": "Full Name", "mData": "FullName", "bSearchable": false, "bSortable": true },
       { "sTitle": "Login Name", "mData": "LoginName", "bSearchable": false, "bSortable": true },
       { "sTitle": "Email", "mData": "Email", "bSearchable": false, "bSortable": true }
    ],
    "columnDefs": [
       {
           "targets": 0,
           "visible": false,
           "searchable": false
       }
    ]
});

in my web api

[HttpGet]
public dynamic GetList([FromUri] BEUserSearchRequest request)
{
BLSystemUser oBL = new BLSystemUser();
List<BESystemUser> oList = new List<BESystemUser>();
oList = oBL.GetList(request.SystemUser, request.PaginAttributes.PageNumber, request.PaginAttributes.PageSize);

        var model = new
        {
            sEcho = request.PaginAttributes.PageNumber,
            iTotalRecords = oList.Count(),
            iTotalDisplayRecords = oList.Count(),
            aaData = oList
        };

        return model;
    }

Please, I need help

Thanks