ASP.NET MVC - How to maintain ModelState from a different controller?

Question

I have a HomeController with an Index action that shows the Index.aspx view. It has a username/password login section. When the user clicks the submit button, it POSTs to a Lo

Answer 1

Use TempData to save state between requests. Use special attributes for convenience as shown here.

Few moments to mention:

• Don't return View directly from your POST-action, respect Post-Redirect-Get pattern.
• Don't overuse TempData. It's only supposed to save model state right before redirect and to retrieve it right after being redirected.