private async void ButtonAdd_Clicked(object sender, EventArgs e)
{
ToggleIndicator();
if (!FormValidationSuccess())
{
await DisplayAlert("Error", "Name and person are required fields", "OK");
return;
}
var person = await _service.GetPerson(TxtName.Text);
if (person != null)
{
await DisplayAlert("Error", "A person with that name already exist", "OK");
return;
}
await _service.AddPerson(TxtName.Text, TxtPhone.Text);
TxtName.Text = string.Empty;
TxtPhone.Text = string.Empty;
await DisplayAlert("Success", "Person Added Successfully", "OK");
await ReloadPeopleList();
ToggleIndicator();
}