Issues with the "draw" parameter while trying to implement server side processing

tstokley

$('#userTable').dataTable({
            serverSide: true,
            ajax: {
                type: "POST",
                data: {
                    'statusFilter': $('#status-filter').val(),
                    'secondaryFilterOption': $('#secondary-filter-option').val(),
                    'secondaryFilterOperator': $('#secondary-filter-operator').val(),
                    'secondaryFilterText': $('#secondary-filter-text').val()
                },

                url: "UserManagement.aspx/GetUsers",

                contentType: "application/json; charset=utf-8",
                dataType: "json",
                success: function (msg) {
                    alert("success");
                        },
               error: function (jqXhr, textStatus, errorThrown) {
                            alert(jqXhr.responseText);

                        }
            },
            scrollY: "500px",
            scrollCollapse: true,
            columnDefs: [
            {
                "targets": [0],
                "visible": false,
                "searchable": false
            },
            {
                "targets": [8],
                "visible": true,
                "searchable": false,
                "render": function (data, type, row, meta) {
                    return '<img title="Edit" class="action-button edit-user center" src="/ntims/images/icon_edit.gif" id="' + row.id + '" />';
                },
            }],
            columns: [
                { "data": "id" },
                { "data": "lastName" },
                { "data": "firstName" },
                { "data": "login" },
                { "data": "command" },
                { "data": "email" },
                { "data": "phone" },
                { "data": "status" }

            ]
        });

I get the following error during the ajax call, "draw" is something datatables sends. I cant control that to my knowledge?

{"Message":"Invalid JSON primitive: draw.","StackTrace":" at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializePrimitiveObject()\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.DeserializeInternal(Int32 depth)\r\n at System.Web.Script.Serialization.JavaScriptObjectDeserializer.BasicDeserialize(String input, Int32 depthLimit, JavaScriptSerializer serializer)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize(JavaScriptSerializer serializer, String input, Type type, Int32 depthLimit)\r\n at System.Web.Script.Serialization.JavaScriptSerializer.Deserialize[T](String input)\r\n at System.Web.Script.Services.RestHandler.GetRawParamsFromPostRequest(HttpContext context, JavaScriptSerializer serializer)\r\n at System.Web.Script.Services.RestHandler.GetRawParams(WebServiceMethodData methodData, HttpContext context)\r\n at System.Web.Script.Services.RestHandler.ExecuteWebServiceCall(HttpContext context, WebServiceMethodData methodData)","ExceptionType":"System.ArgumentException"}

tstokley

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