protected override async void OnAppearing()
{
base.OnAppearing();
var viewModel = new HistoryViewModel(this.Navigation);
await viewModel.GetFinishedAppointments();
Indicator.IsVisible = false;
if (viewModel.FinishedAppointments.Count > 0)
{
AppointmentListView.ItemsSource = viewModel.FinishedAppointments;
}
else
{
EmptyTextMessage.IsVisible = true;
}
}