part3-15

var routeData = new RouteData();
routeData.Values.Add("controller", ErrorControllerRouteName);
routeData.Values.Add("action", actionName);

var requestContext = new RequestContext(
    new HttpContextWrapper(HttpContext.Current),
    routeData);
    
var controllerFactory = ControllerBuilder.Current.GetControllerFactory();

var controller = controllerFactory.CreateController(
    requestContext,
    ErrorControllerRouteName);
    
controller.Execute(requestContext);

HttpContext.Current.Server.ClearError();