async void OnButtonClicked(object sender, EventArgs args) { Agenda agenda = new Agenda(); agenda.id_cliente = App.User.id_pessoa; agenda.id_profissional = this.Profissional; agenda.servico = new List <Servicos>(); Servicos prof_serv = new Servicos(); prof_serv.id_servico = this.IdProf_serv; agenda.servico.Add(prof_serv); agenda.datetime = new DateTime(this.DateTime.Year, this.DateTime.Month, this.DateTime.Day, Convert.ToInt32(Hora.Substring(0, 2)), Convert.ToInt32(Hora.Substring(3, 2)), 0); try { var result = await ApiAgendaHttpClient.Current.Agendamento(agenda); Resposta = result; await App.Current.MainPage.DisplayAlert("", Resposta.msg, "Ok"); await Navigation.PopAsync(); } catch (Exception ex) { await App.Current.MainPage.DisplayAlert("Ah não", ex.Message, "Ok"); } }