private void OnSignIn(object obj)
 {
     if (!string.IsNullOrWhiteSpace(EmailAddress))
     {
         InputEnabled   = false;
         LoadingMessage = "Logging in...";
         _uiAuthenticationService.LoginCompleted += HandleLoginCompleted;
         _uiAuthenticationService.LoginAsync(EmailAddress, Password, true);
     }
 }
        private void OnSignIn(object obj)
        {
            //InputEnabled = false;
            //LoadingMessage = "loading";
            //_uiAuthenticationService.LoginCompleted += HandleLoginCompleted;
            //_uiAuthenticationService.LoginAsync("dev","dev");

            if (!string.IsNullOrWhiteSpace(EmailAddress))
            {
                InputEnabled   = false;
                LoadingMessage = "Logging in...";
                _uiAuthenticationService.LoginCompleted += HandleLoginCompleted;
                _uiAuthenticationService.LoginAsync(EmailAddress, Password);
            }
            else
            if (!string.IsNullOrWhiteSpace(QuickLoginUsername))
            {
                InputEnabled   = false;
                LoadingMessage = "Logging in...";
                _uiAuthenticationService.LoginCompleted += HandleLoginCompleted;
                _uiAuthenticationService.QuickLoginAsync(QuickLoginUsername);
            }
        }
 private void OnSignIn(object obj)
 {
     LoadingMessage = "loading";
     _uiAuthenticationService.LoginCompleted += HandleLoginCompleted;
     _uiAuthenticationService.LoginAsync(EmailAddress, Password);
 }