public async Task <IActionResult> AddTodo(string name, string startDate, string startAt, string finishDate, string finishAt, int todoTypeId)
        {
            var todoType = await TodoTypeService.GetByIdAsync(todoTypeId);

            var todo = new Todo {
                Name = name, StartDate = startDate, StartAt = startAt, FinishDate = finishDate, FinishAt = finishAt, TodoType = todoType
            };
            await TodoService.AddNewAsync(todo);

            return(RedirectToAction("Index"));
        }