safaribook-pro-aspnet-mvc3/chap3_your_first_mvc_app/PartyInvites/Controllers/HomeController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
using PartyInvites.Models;

namespace PartyInvites.Controllers
{
    public class HomeController : Controller
    {
        public ActionResult Index()
        {
            int hour = DateTime.Now.Hour;
            ViewBag.Greeting = hour < 12 ? "Good morning" : "Good afternoon";
            return View();
        }

        public ActionResult About()
        {
            ViewBag.Message = "Your application description page.";
            return View();
        }

        public ActionResult Contact()
        {
            ViewBag.Message = "Your contact page.";
            return View();
        }

        [HttpGet]
        public ActionResult RsvpForm()
        {
            return View();
        }

        [HttpPost]
        public ActionResult RsvpForm(GuestResponse guestResponse)
        {
            if (ModelState.IsValid)
            {
                // TODO: Email guestResponse to the part organizer
                return View("Thanks", guestResponse);
            }
            else
            {
                // there is a validation error - redisplay the for
                return View();
            }
        }
    }
}