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    <p>In my project I just listened for the WebView's navigated event. If it happens, it means that user did something on the login page (i.e. pressed login button). Then I parsed the uri of the page you mentioned which should contain OAuth callback url, if it is correct and the result is success I redirect manually to the correct page:</p> <pre><code> //somewhere in the app private readonly FacebookClient _fb = new FacebookClient(); private void webBrowser1_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e) { FacebookOAuthResult oauthResult; if (!_fb.TryParseOAuthCallbackUrl(e.Uri, out oauthResult)) { return; } if (oauthResult.IsSuccess) { var accessToken = oauthResult.AccessToken; //you have an access token, you can proceed further FBLoginSucceded(accessToken); } else { // errors when logging in MessageBox.Show(oauthResult.ErrorDescription); } } </code></pre> <p>If you abstract logging in an async function, you expect it to behave asynchronously, so events are ok.</p> <p>Sorry for my English.</p> <p>The code for the full page:</p> <pre><code>public partial class LoginPageFacebook : PhoneApplicationPage { private readonly string AppId = Constants.FacebookAppId; private const string ExtendedPermissions = "user_birthday,email,user_photos"; private readonly FacebookClient _fb = new FacebookClient(); private Dictionary&lt;string, object&gt; facebookData = new Dictionary&lt;string, object&gt;(); UserIdentity userIdentity = App.Current.Resources["userIdentity"] as UserIdentity; public LoginPageFacebook() { InitializeComponent(); } private void webBrowser1_Loaded(object sender, RoutedEventArgs e) { var loginUrl = GetFacebookLoginUrl(AppId, ExtendedPermissions); webBrowser1.Navigate(loginUrl); } private Uri GetFacebookLoginUrl(string appId, string extendedPermissions) { var parameters = new Dictionary&lt;string, object&gt;(); parameters["client_id"] = appId; parameters["redirect_uri"] = "https://www.facebook.com/connect/login_success.html"; parameters["response_type"] = "token"; parameters["display"] = "touch"; // add the 'scope' only if we have extendedPermissions. if (!string.IsNullOrEmpty(extendedPermissions)) { // A comma-delimited list of permissions parameters["scope"] = extendedPermissions; } return _fb.GetLoginUrl(parameters); } private void webBrowser1_Navigated(object sender, System.Windows.Navigation.NavigationEventArgs e) { if (waitPanel.Visibility == Visibility.Visible) { waitPanel.Visibility = Visibility.Collapsed; webBrowser1.Visibility = Visibility.Visible; } FacebookOAuthResult oauthResult; if (!_fb.TryParseOAuthCallbackUrl(e.Uri, out oauthResult)) { return; } if (oauthResult.IsSuccess) { var accessToken = oauthResult.AccessToken; FBLoginSucceded(accessToken); } else { // user cancelled MessageBox.Show(oauthResult.ErrorDescription); } } private void FBLoginSucceded(string accessToken) { var fb = new FacebookClient(accessToken); fb.GetCompleted += (o, e) =&gt; { if (e.Error != null) { Dispatcher.BeginInvoke(() =&gt; MessageBox.Show(e.Error.Message)); return; } var result = (IDictionary&lt;string, object&gt;)e.GetResultData(); var id = (string)result["id"]; userIdentity.FBAccessToken = accessToken; userIdentity.FBID = id; facebookData["Name"] = result["first_name"]; facebookData["Surname"] = result["last_name"]; facebookData["Email"] = result["email"]; facebookData["Birthday"] = DateTime.Parse((string)result["birthday"]); facebookData["Country"] = result["locale"]; Dispatcher.BeginInvoke(() =&gt; { BitmapImage profilePicture = new BitmapImage(new Uri(string.Format("https://graph.facebook.com/{0}/picture?type={1}&amp;access_token={2}", id, "square", accessToken))); facebookData["ProfilePicture"] = profilePicture; userIdentity.FBData = facebookData; userIdentity.ProfilePicture = profilePicture; ARLoginOrRegister(); }); }; fb.GetAsync("me"); } private void ARLoginOrRegister() { WebService.ARServiceClient client = new WebService.ARServiceClient(); client.GetUserCompleted += client_GetUserCompleted; client.GetUserAsync((string)facebookData["Email"]); client.CloseAsync(); } void client_GetUserCompleted(object sender, WebService.GetUserCompletedEventArgs e) { if (e.Result == null) NavigationService.Navigate(new Uri("/RegisterPageFacebook.xaml", UriKind.RelativeOrAbsolute)); else if (e.Result.AccountType != (int)AccountType.Facebook) { MessageBox.Show("This account is not registered with facebook!"); NavigationService.Navigate(new Uri("/LoginPage.xaml", UriKind.RelativeOrAbsolute)); } else { userIdentity.Authenticated += userIdentity_Authenticated; userIdentity.FetchARSocialData((string)facebookData["Email"]); } } void userIdentity_Authenticated(bool success) { NavigationService.Navigate(new Uri("/MenuPage.xaml", UriKind.RelativeOrAbsolute)); } } </code></pre>
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    1. POWP8 - Facebook Login Issue
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    1. USMichael K. Sondej
    1. USMichael K. Sondej
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    1. COWhat is the waitPanel in the code above?
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      1. USvaragrawal
    2. COJust a fullscreen overlay displaying "Connecting..." and a indeterminate progressbar. When the user enters the page this is all what he can see. When the browser is ready and navigated to the external Facebook login web page the navigated event is emitted for the first time. The first part of the code hides the waitPanel and returns, because the url doesn't contain valid OAuth callback. When the user presses "Login" the browser emits "navigated" for the second time, you could then display the waitPanel in the handler again (I'm not doing that) and do the logic in the background.
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      1. USMichael K. Sondej
 

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