stevejay

public class SomeApplicationClass : HttpApplication
{   
    ...
}

stevejay

public static void RegisterRoutes(RouteCollection routes)
{    
    routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
    
    routes.MapRoute(
        "Default",
        "{controller}/{action}/{id}",
        new {controller="Home", action="Index", id=UrlParameter.Optional});
        
    // More routes here.

stevejay

<system.web>
    <customErrors defaultRedirect="" />
    <!-- any other elements -->
</system.web>

stevejay

<customErrors defaultRedirect="~/path-to-your-error-page" />

stevejay

<customErrors>
    <error statusCode="500" redirect="~/path-to-your-error-page" />
</customErrors>

stevejay

var exception = Server.GetLastError();

stevejay

<system.webServer>
    <httpErrors errorMode="DetailedLocalOnly" existingResponse="Auto" />
    <!-- any other elements -->
</system.webServer>

stevejay

<httpErrors errorMode="Custom" existingResponse="Replace">
    <remove statusCode="500" />
    <error         
        statusCode="500"
        path="/MvcErrorHandling/Error/HttpErrors500"
        responseMode="ExecuteURL" />
</httpErrors>

stevejay

Response.TrySkipIisCustomErrors = true;

stevejay

public static void RegisterGlobalFilters(GlobalFilterCollection filters)
{
    filters.Add(new HandleErrorAttribute());
}