public static void SaveCredentials(DataModels.DataModels.Usuario user)
 {
     if (!string.IsNullOrWhiteSpace(user.alias) && !string.IsNullOrWhiteSpace(user.contrasena) && user.tipoUsuario > 0)
     {
         Account account = new Account
         {
             Username = user.alias
         };
         account.Properties.Add("Password", user.contrasena);
         account.Properties.Add("Name", user.nombre);
         account.Properties.Add("LastName", user.apellido);
         account.Properties.Add("PhoneNumber", user.telefonoMovil);
         account.Properties.Add("CodArea", user.codigoArea);
         account.Properties.Add("Phone", user.telefonoFijo);
         account.Properties.Add("Mail", user.mail);
         account.Properties.Add("Address", user.direccion);
         account.Properties.Add("City", user.comuna);
         account.Properties.Add("UserType", user.tipoUsuario.ToString());
         account.Properties.Add("LicenceNumber", user.licenceNumber);
         account.Properties.Add("TypOfVehicle", user.typOfVehicle);
         account.Properties.Add("Ranking", user.ranking.ToString());
         account.Properties.Add("EvaluationsNumber", user.cantidadEvaluaciones.ToString());
         AccountStore.Create(Application.Context).Save(account, Application.Context.ToString());
     }
 }
        public static DataModels.DataModels.Usuario GetCredentials()
        {
            var usuario = new DataModels.DataModels.Usuario {
                alias                = Alias,
                nombre               = Name,
                apellido             = LastName,
                contrasena           = Password,
                telefonoMovil        = PhoneNumber,
                telefonoFijo         = Phone,
                codigoArea           = CodArea,
                mail                 = Mail,
                direccion            = Address,
                comuna               = City,
                tipoUsuario          = int.Parse(UserType),
                cantidadEvaluaciones = EvaluationsNumber,
                licenceNumber        = LicenceNumber,
                typOfVehicle         = TypOfVehicle,
                ranking              = Ranking
            };

            return(usuario);
        }