How to pass values from One controller to another Controller in ASP.Net MVC3

Question

Hello In my project I have to pass a welcome message with username to the Index Page Its a MVC3 ASP.Net Razor project

There are two controllers are there; O

Answer 1

Use TempData. Its data is available in the next request also.

// after login
TempData["message"] = "whatever";

// home/index
var message = TempData["message"] as string;

Answer 2

You can try with Session, like

Session["username"] = username;

and for recover in the other controller use

var username = (string)Session["username"]

or in your redirect try with

return RedirectToAction("Index", "Nome", new{ username: username})

but the action of your controller must have as argument the (string username) like

public ActionResult Index(string username)
{
    return View();
}

Answer 3

1. Change the Index() method of Home Controller to this:

   [HttpPost]
   
   public ActionResult Index(string username)
   {
        ViewBag.user=username; 
        return View();
   }
   

2. Modify the Login Controller :

   if (DataAccess.DAL.UserIsValid(model.UserName, model.Password))
   {
       FormsAuthentication.SetAuthCookie(model.UserName, false); 
       return RedirectToAction("Index", "Home",new { username = model.Username } ); 
       //sending the parameter 'username'value to Index of Home Controller
   }
   

Go to the View Page of the Index method of Home Controller and add the following:

 <p>User is: @ViewBag.user</p>

And you're done. :)

Answer 4

You could retrieve the currently authenticated username from the User instance:

[Authorize]
public ActionResult Index()
{
    string username = User.Identity.Name;
    ...
}