public ActionResult Crear()
        {
            ViewBag.TipoDocId = new SelectList(TipoDocBL.Listar(), "TipoDocId", "Nombre");
            ViewBag.OficinaId = new SelectList(OficinaBL.Listar(), "OficinaId", "Nombre");

            return(View());
        }
        public ActionResult Ver(int id)
        {
            var doc = DocumentoBL.Obtener(id);

            ViewBag.TipoDocId = new SelectList(TipoDocBL.Listar(), "TipoDocId", "Nombre");
            ViewBag.OficinaId = new SelectList(OficinaBL.Listar(), "OficinaId", "Nombre");

            return(View(doc));
        }