public ResponseModel GuardarPerfil(HttpPostedFileBase Foto) { var rm = new ResponseModel(); try { using (var db = new Model_Sistema()) { db.Configuration.ValidateOnSaveEnabled = false; var usu = db.Entry(this); usu.State = EntityState.Modified; if (Foto != null) { const int size = 1024 * 1024 * 5; var filtroextension = new[] { ".jpg", ".jpeg", ".png", ".gif" }; var extensiones = Path.GetExtension(Foto.FileName); if (filtroextension.Contains(extensiones) && (Foto.ContentLength <= size)) { avatar = usuario_id + "_avatar" + extensiones; Foto.SaveAs(HttpContext.Current.Server.MapPath("~/Uploads/" + avatar)); } else { usu.Property(x => x.avatar).IsModified = false; } if (this.usuario_id == 0) { usu.Property(x => x.usuario_id).IsModified = false; } if (this.persona_id == 0) { usu.Property(x => x.persona_id).IsModified = false; } if (this.usuario1 == null) { usu.Property(x => x.usuario1).IsModified = false; } if (this.nivel == null) { usu.Property(x => x.nivel).IsModified = false; } if (this.estado == null) { usu.Property(x => x.estado).IsModified = false; } if (this.clave == null) { usu.Property(x => x.clave).IsModified = false; } db.SaveChanges(); rm.SetResponse(true); } } } catch (DbEntityValidationException) { throw; } return(rm); }