public ActionResult <IEnumerable <TodoItem> > Get()
        {
            var test = new TodoItem[] { new TodoItem {
                                            nummer = 1, text = "test"
                                        } };
            var t = test.Append(new TodoItem {
                nummer = 2, text = "test2"
            });
            var l = t.ToList();
            var i = new TodoItem();

            i.nummer = 4;
            i.text   = "test4";
            l.Add(new TodoItem {
                nummer = 3, text = "test3"
            });
            l.Add(i);
            foreach (var y in l)
            {
                y.text = "sudde" + y.nummer;
            }
            //test = test.Concat( new [] { new { nummer= 2, text = "test2"}});
            //return new string[] { "sudde1", "sudde2" };
            //List<TodoItem> Sorted = l.OrderBy(o=>o.nummer).ToList();
            List <TodoItem> Sorted = l.OrderByDescending(o => o.nummer).ToList();

            //return l.ToArray();
            return(Sorted.ToArray());
        }