Redirect to 404 page programmatically using asp.net MVC

Question

I have created a Asp.net MVC application. Now required 404 handling.

Have updated global.asax and display 404 page based on status code. Also added customErrors property in web.config. Its working fine.

Now I would like to redirect to 404 programmatically when any thing not match with our requirement.

i.e.

if(!valid) 
{
    return RedirectToAction("Index", "Page404");
}

It's working fine but there are 2 status one is 301 & then 404. So how can I prevent 301? I just need 404.

How can I achieve this?

score 45 · Answer 1 · edited May 23 '12 at 04:25

45

Simply return from your action:

return HttpNotFound();

edited May 23 '12 at 04:25

McGarnagle

answered May 22 '12 at 13:10

jorgehmv

2

This is the correct answer. In a case where you query the database whilst servicing a result, and find an object with the user-specified ID does not exist, you DO need to programmatically redirect the user to a 404 page (or similar action). – Dermot Nov 13 '13 at 01:41

Vishal · Accepted Answer · 2012-05-22T13:17:03.120

3

In your web.config, add:

<customErrors mode="On" >
       <error statusCode="404" redirect="/404.shtml" />
</customErrors>

This will redirect on 404.shtml page when requested resource is not found.

Note: No need to programmatically redirect users for such situation.

EDIT: I literally suggest:

if (Context.Response.StatusCode == 404) {
  // handle this
}

edited May 22 '12 at 13:17

answered May 22 '12 at 13:10

Vishal

score 2 · Answer 3 · answered May 22 '12 at 13:10

2

Just throw out a 404 in the status code:

Response.StatusCode = (int)System.Net.HttpStatusCode.NotFound

answered May 22 '12 at 13:10

web_bod

3 Answers3