Question

I’m currently working on the user registration in my project. After the registration is done I wish to show some confirmation to the user. I decided to create another view. That’s fine.

Now, if after the registration I just return the view like:

public class MyController : Controller {     [AcceptVerbs (HttpVerbs.Post), ValidateAntiForgeryToken]     public ActionResult Registration (FormCollection form)     {         /* Some logic goes here */          return View ('ConfirmationView');     } } 

Everything is working as desired. No changed url in the title bar. But… If I click the refresh button, the browser will submit the data from the form again which I do not want.

Then I decided to create a separate action, but that means it will produce a new url in the address bar. I do not want the user to click refresh now because this view will not be able to sensibly display the confirmation information again. Is there any way to make an action not accessible directly? Or at least any way to determine whether it was called directly or by redirection? In the latter case I would just take the user away from that page to maybe the home page.

Any way to accomplish this?

Answer 1

So I found the solution myself.

One can use TempData to detect the repeated or external action calls.

public class MyController : Controller {     [AcceptVerbs (HttpVerbs.Post), ValidateAntiForgeryToken]     public ActionResult Registration (FormCollection form)     {         /* Some logic goes here */          TempData['RedirectCall'] = true;         return RedirectToAction ('Confirmation');     }      [AcceptVerbs (HttpVerbs.Get)]     public ActionResult Confirmation ()     {         if (TempData['RedirectCall'] == null)             return RedirectToAction ('StartPage', 'Home');          return View ();     } } 

Nice and simple. 🙂