ASP returns 404 Error status Code program

404 Error status Code is the page can not find the return of a tell search engine this page will never save, the following small series to give you the students to introduce 404 error status code in the ASP code how to achieve it.

Set 404 status in ASP

The code is as follows
<% Response.Status = "404 Not Found" %>

Asp. NET Setup 404 page

Add code to 404.aspx:

The code is as follows
Response.Status = "404 Moved Permanently";

Add the following code to the Global.asax:

code is as follows

&nbs P;

protected void Application_Error (object sender, EventArgs e)       {         //code to run when an unhandled error occurs            this. Filenotfound_error ();      }     ///<summary>     ///404 error handling &NBSP    ///</summary>      Private void Filenotfound_error ()       {            HttpException Erroy = Server.GetLastError () as httpexception;           if (Erroy!= null && Erroy. Gethttpcode () = = 404)           {              Server.ClearError ();                string path = "~/404.aspx";                Server.Transfer (path);               //context.handler = pageparser.getcompiledpageinstance (path, Server.MapPath (path), context );          }    }