Print

Q:

How can I call a custom Error Page when an Item requested in the URL does not exist?

A:

There are at least two ways.

1.  Using Web.config Parameter

There is a special web.config parameter

<!--  ITEM NOT FOUND HANDLER
            Url of page handling 'Item not found' errors
 -->
      <setting name="ItemNotFoundUrl" value="/Errors/MyErrorPage.html" />

You can replace a Sitecore error page with a custom one.

2.  Write your Custom Processor

You can write your own processor for the httpRequestBegin pipeline:   

and use the following code for the CustomHttpRequestHandler: 

namespace CustomHttpRequestHandler
{
  public class MyHttpHandler
  {
      public void Process(HttpRequestArgs args) 
      {
         if (args.LocalPath.IndexOf("/sitecore/") == -1 && args.FilePath.IndexOf("/sitecore/") == -1 && Context.Item == null )
         {
            WebUtil.Redirect("http://localhost/MyCustomErrorPage.html");
            args.Abort();
            return;
         }
      }
  }
}