private async void _Submit_Clicked(object sender, EventArgs e) { try { String PhoneNo = _CountryCode.SelectedItem + _PhoneNo.Text; if (!String.IsNullOrEmpty(PhoneNo) && !String.IsNullOrEmpty(_ConfirmPassword.Text)) { String Email = (String.IsNullOrEmpty(_Email.Text)) ? "n/a" : _Email.Text; //inform user if email/phone no is used bool IsEmailAvail = false; if (Email != "n/a") { IsEmailAvail = await SignUpController.CheckUniqueFields(Utilities.PostDataEncoder(new Dictionary <int, string[]> { { 0, new String[] { "email", _Email.Text } } }), "e-mail"); } bool IsPhoneAvail = await SignUpController.CheckUniqueFields(Utilities.PostDataEncoder(new Dictionary <int, string[]> { { 0, new String[] { "phone", PhoneNo } } }), "phone-no"); if (IsEmailAvail) { if (IsPhoneAvail) { //confirm password if (_ConfirmPassword.Text.Equals(_Password.Text)) { await Navigation.PushAsync(new OTPPage(new GeneralDetails(Email, PhoneNo, _ConfirmPassword.Text, UserType, ShortCountryCode))); } else { await DisplayAlert("Alert", "Passwords don't match", "Okay"); } } else { await DisplayAlert("Alert", "Phone number is already registered ", "Okay"); } } else { await DisplayAlert("Alert", "Email address is already registered ", "Okay"); } } else { //force validation if (String.IsNullOrEmpty(_PhoneNo.Text)) { _PhoneNo.PlaceholderColor = Color.Red; } else { _PhoneNo.PlaceholderColor = Color.Black; } if (String.IsNullOrEmpty(_Password.Text)) { _Password.PlaceholderColor = Color.Red; } else { _Password.PlaceholderColor = Color.Black; } if (String.IsNullOrEmpty(_ConfirmPassword.Text)) { _ConfirmPassword.PlaceholderColor = Color.Red; } else { _ConfirmPassword.PlaceholderColor = Color.Black; } await DisplayAlert("Alert", "Pleae fill the RED Fields", "Okay"); } } catch (System.Net.WebException WebEx) { await DisplayAlert("Alert", Utilities.NoInternet, "Okay"); } catch (Exception ex) { await DisplayAlert("Alert", ex.Message, "Okay"); } }