$(function() {
            var cols = [
                { data: "Id", name: "Id", orderable: false },
                {
                    data: function (e) {
                        if (e.CreateTime) {
                            return e.CreateTime.toString().getDate();
                        } 
                        else { return ""}
                    }, name: "CreateTime",
                    orderable: true
                }
            ];