public ActionResult BtnPartEvento() { try { int idgrupo = int.Parse(Request.QueryString[0]); int idevento = int.Parse(Request.QueryString[1]); int iduser = int.Parse(Request.QueryString[2]); using (EventoModel model = new EventoModel()) { model.PartEvento(idgrupo, iduser, idevento); } return(RedirectToAction("Index", "Evento", new { GrupoId = idgrupo, EventoId = idevento })); } catch (Exception ex) { Console.WriteLine("{0} Exception caught", ex); return(RedirectToAction("Erro404", "Error")); } }