如何将用户重定向到ASP.NET MVC中的自定义404页面而不是抛出异常？

using System.Web.Mvc;

public class CustomErrorFilterAttribute : HandleErrorAttribute
{
    public override void OnException(ExceptionContext filterContext)
    {
        if (filterContext.Exception is HttpException && ((HttpException)filterContext.Exception).GetHttpCode() == 404)
        {
            filterContext.Result = new ViewResult
            {
                ViewName = "Error"
            };
            filterContext.ExceptionHandled = true;
            filterContext.HttpContext.Response.Clear();
            filterContext.HttpContext.Response.StatusCode = 404;
        }
        else
        {
            base.OnException(filterContext);
        }
    }
}

GlobalFilters.Filters.Add(new CustomErrorFilterAttribute());