private async Task Update()
{
bool result = await UniversityServiceApi.UpdateItem <Students>(controller, st, st.id);
if (result)
{
await App.Current.MainPage.DisplayAlert("Success!", "The student was updated successfuly!", "Ok");
await App.Current.MainPage.Navigation.PopAsync();
}
else
{
await App.Current.MainPage.DisplayAlert("Failed!", "The student was NOT updated!", "Ok");
}
}
