private async void OnConfirmButtonClicked(object sender, System.EventArgs e) { if (string.IsNullOrWhiteSpace(Entry_Password.Text)) { await DisplayAlert(null, "Please enter a password", "OK"); return; } int newId = await Communications.Register(Entry_Username.Text, Entry_Password.Text, avatarNum); if (newId > 0) { await DisplayAlert("Register success!", "Your id number is " + newId + ". Please remember this as this will be used as your login", "ok"); } else { await DisplayAlert("Register failed!", "Please try again", "ok"); } }