private async void OnRegisterCommand()
{
RegisterErrorMsg = null;
if (RegisterUserName == null || RegisterPassword == null || RegisterConfirmPassword == null || RegisterFirstName == null || RegisterLastName == null || RegisterEmail == null)
{
RegisterErrorMsg = MessageNames.RegisterBlank;
}
else
{
RegisterErrorMsg = ValidationUtilities.ValidateInput(RegisterFirstName);
if (RegisterErrorMsg == null)
{
RegisterErrorMsg = ValidationUtilities.ValidateInput(RegisterLastName);
if (RegisterErrorMsg == null)
{
RegisterErrorMsg = ValidationUtilities.ValidateInput(RegisterUserName);
if (RegisterErrorMsg == null)
{
if (RegexUtilities.IsValidEmail(RegisterEmail))
{
RegisterErrorMsg = ValidationUtilities.ValidatePassword(RegisterPassword);
if (RegisterErrorMsg == null)
{
if (RegisterPassword != RegisterConfirmPassword)
{
RegisterErrorMsg = MessageNames.RegisterWrongPasswords;
}
else
{
try
{
_userName.FirstName = RegisterFirstName;
_userName.LastName = RegisterLastName;
_userName.UserName = RegisterUserName;
_userName.Password = RegisterPassword;
_userName.Email = RegisterEmail;
await _userDataService.RegisterUser(_userName);
}
catch (Exception)
{
RegisterErrorMsg = MessageNames.RegisterUniqueException;
}
}
}
}
else
{
RegisterErrorMsg = MessageNames.RegisterWrongEmail;
}
}
}
}
}
if (RegisterErrorMsg == null)
{
MessagingCenter.Send(this, MessageNames.RegisterdUser);
_navigationService.GoBack();
}
}