SharePoint List to Datatable using Client Object Model

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Microsoft.SharePoint.Client;
using System.Data;
namespace ConsoleApplication5 {
    class Program {
        static void Main(string[] args) {
            string PeoplePicker, Lookup;
            ClientContext context = new ClientContext("SiteName");
            List list = context.Web.Lists.GetByTitle("ListName");
            CamlQuery query = new CamlQuery();
            query.ViewXml = "<View/>";
            ListItemCollection items = list.GetItems(query);
            context.Load(list);
            context.Load(items);
            context.ExecuteQuery();
            DataTable Listtodt = new DataTable();
            Listtodt.Columns.Add("ID");
            Listtodt.Columns.Add("Title");
            Listtodt.Columns.Add("PersonorGroupfield");
            Listtodt.Columns.Add("SingleLineOfText");
            Listtodt.Columns.Add("LookupField"); // Value come from another parent sharepoint list
            foreach(ListItem item in items) {
                var testPersonorGroupfield = (FieldUserValue) item["PersonorGroupfield"];
                if (testPersonorGroupfield == null) {
                    PeoplePicker = "";
                } else {
                    PeoplePicker = testPersonorGroupfield.LookupValue;
                }
                var childIdField = item["LookupField"] as FieldLookupValue;
                if (childIdField != null) {
                    var childId_Value = childIdField.LookupValue;
                    var childId_Id = childIdField.LookupId;
                    Lookup = childId_Value.ToString();
                } else {
                    Lookup = "";
                }
                Listtodt.Rows.Add(item.Id, item["Title"], PeoplePicker, item["SingleLineOfText"], Lookup);
            }
        }
    }
}