CODEWITHSUNDEEP
c#asp.net-mvcasp.net-coreviewbag
Riz buddy
Riz buddy

Reputation: 11

How to display message through ViewBag?

I need to display success msg when user registered. below i attached code. that code not displaying success msg. whats wrong. please help. (This is Asp.net core MVC web application)

[HttpPost]
    public ActionResult Register(UserAccount user)
    {
        if (ModelState.IsValid)
        {
            _context.UserAccounts.Add(user);
            _context.SaveChanges();

            ModelState.Clear();
            ViewBag.Message = "Successfully Registration Done";

        }
        return View();
    }

Upvotes: 1

Views: 4981

Answers (2)

Chris Pratt
Chris Pratt

Reputation: 239250

You shouldn't be using ViewBag at all for this. Use TempData instead and follow the PRG (post-redirect-get) pattern.

[HttpPost]
public ActionResult Register(UserAccount user)
{
    if (ModelState.IsValid)
    {
        _context.UserAccounts.Add(user);
        _context.SaveChanges();

        TempData["Message"] = "Successfully Registration Done";
        return RedirectToAction("Foo");
    }

    return View();
}

On success, you need to redirect the user somewhere else. It makes no sense to return them to the registration form, after they've already registered, and it solves the issue of having to clear the model state. You use TempData to store the message, so it persists through the next request. Then, in your view:

@TempData["Message"]

Where you want it to display.

Upvotes: 1

David Edel
David Edel

Reputation: 569

Anywhere in your HTML page you can use the viewbag.

Example:

<h4>@ViewBag.Message</h4>

Upvotes: 5

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