Question

I am working on Asp.net mvc3 application.For exception handling i using following code in global.asax

    protected void Application_Error(object sender, EventArgs e)
    {
        Exception exception = Server.GetLastError();
        Response.Clear();
        HttpException httpException = exception as HttpException;
        Server.ClearError();
        Response.Redirect("/Secure/Error", false);
    }

if any exception occur it will redirect to Error page.I want to some exeception should not redirect to Error page.

Like if any user enter following url

http://www.example.com/index

there is no controller of ‘index‘ name it will be throw exception

The controller for path ‘/index’ was not found or does not implement
IController

I want this when this exeception occur it should redirect to http://www.example.com

How can i do this?

There are some other keyword like index.. that should be redirect to main url of website

Answer 1

If you want to do that only for specific keywords, why not add corresponding routes instead of handling the 404 – Not Found exceptions?

You could do this in your Globals.asax.cs file, next to the other route definitions:

routes.MapRoute(
    "IndexRoute", // Route name
    "index", // URL 
    new { controller = "Home", action = "RedirectToRoot" }
    );

and likewise for all keywords other than index.

Update

After making /index and the other urls point to HomeController.RedirectToRoot() (or another controller/action of your choice), just implement it to return a RedirectResult that would take the user to the site’s root:

public RedirectResult RedirectToRoot()
{
    return RedirectToAction("Index", "Home");
}

Update 2

If you are absolutely sure that you’ll never use /index or the other special urls for anything but redirecting to root, then you could do a permanent redirect instead:

return RedirectToActionPermanent("Index", "Home");

This will save some round trips to the server, but the redirection will be permanently stored in client browsers, making it very hard/impossible to use those urls for anything else in the future.