private void ValidateCellPhoneNumbers() { if (string.IsNullOrEmpty(Phone)) { ErrorPhone = string.Empty; } else { ErrorPhone = ValidatorHelper.IsValidPhone(Phone) ? string.Empty : AppResources.InvalidPhone; } if (string.IsNullOrEmpty(CellPhone)) { ErrorCellPhone = AppResources.CellPhoneRequired; return; } ErrorCellPhone = ValidatorHelper.IsValidCellPhone(CellPhone) ? string.Empty : AppResources.InvalidPhone; }