protected void Application_Error()
        {
            // Логирование сообщений об ошибках.

            HttpContext context = this.Context;
            Exception lastException = Server.GetLastError();
            this.Response.Clear();

            MvcApplication.LoggerForExceptions.Trace(LoggingHelpers.GetExceptionsLoggingInfo(context, lastException));

            this.Response.Redirect("/Error/ErrorPage");
        }

 protected void Application_Error(object sender, EventArgs e)
        {
            

            HttpContext ctx = HttpContext.Current;
            Exception ex = ctx.Server.GetLastError();
           

            var viewResult = new ViewResult();

            var httpException = ex as HttpException;
            if (httpException != null)
            {               
                 
              

              switch (httpException.GetHttpCode())
              {


                    case 404:



                        using (System.IO.StreamWriter sw = System.IO.File.AppendText(AppDomain.CurrentDomain.BaseDirectory + "LOGS/404.LOG"))
                        {
                            sw.WriteLine(DateTime.Now.ToString() + "404: " + httpException.Message +  "  " +GetBaseUrl() + "   " + GetIPAddress() + "    " + httpException.Data  +   "   " + httpException.InnerException);
                            sw.Flush();
                        }                      
                        
                        
                        viewResult.ViewName = "Error404";

                        break;

                    case 500:
					.................