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facebook-windows-phone-sample's Introduction

Facebook C# SDK Sample with Windows Phone 7

This sample demonstrates the use of Facebook C# SDK v6 as a Windows Phone 7 Application.

Note: This sample does not necessarily demonstrate the best use but rather features of using Facebook C# SDK on a Windows Phone 7 app. Always remember to handle exceptions.

Getting started

Set the appropriate AppId in FacebookLoginPage.xaml.cs before running the sample.

private const string AppId = "app_id";

Note:

  • For new projects using Facebook C# SDK which use anonymous objects as parameters make sure to add [assembly: InternalsVisibleTo("Facebook")] in AssemblyInfo.cs.
  • When updating UI in callback make sure to execute it in the appropriate thread. This can be solved by using Dispatcher.Invoke() method.
  • Create new instance of FacebookClient for each XAsync method calls in order to avoid the event handler from being fired multiple times.

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facebook-windows-phone-sample's Issues

certificate error

hi,

when i start the sample projects i always get a certificate error:
certificateerror
how to fix this problem?
cheers

This property is not implemented by this class. Error in my project.

I am following Your Instructions. It was working in my sample project. When i try to implement in my original project i get error.

private void LoginSucceded(string accessToken)
{
var fb = new FacebookClient(accessToken);

        fb.GetCompleted += (o, e) =>
        {
            if (e.Error != null)
            {
                Deployment.Current.Dispatcher.BeginInvoke(() =>
                {
                    MessageBox.Show(e.Error.Message);
                    return;
                });
            }

            var result = (IDictionary<string, object>)e.GetResultData();
            var id = (string)result["id"];

            var url = string.Format("/Views/FacebookInfoPage.xaml?access_token={0}&id={1}", accessToken, id);
            var rootFrame = (App.Current as App).RootFrame;
            Deployment.Current.Dispatcher.BeginInvoke(() =>
               {
                   rootFrame.Navigate(new Uri(url, UriKind.Relative));
               });
        };

        fb.GetAsync("me?fields=id");
    }

In this method i am getting error in this line: fb.GetAsync("me?fields=id");

error..System.NotImplementedException: This property is not implemented by this class.
at System.Net.HttpWebRequest.SetUserAgent(String value)
at System.Net.HttpWebRequest.set_UserAgent(String value)
at Facebook.HttpWebRequestWrapper.set_UserAgent(String value)
at Facebook.HttpWebRequestWrapper.TrySetUserAgent(String userAgent)
at Facebook.FacebookClient.PrepareRequest(HttpMethod httpMethod, String path, Object parameters,
Type resultType, Stream& input, Boolean& containsEtag, IList`1& batchEtags)
at Facebook.FacebookClient.ApiAsync(HttpMethod httpMethod, String path, Object parameters, Type resultType, Object userState)
at Facebook.FacebookClient.GetAsync(String path, Object parameters, Object userState)
at Facebook.FacebookClient.GetAsync(String path)
at TestReactive.com.beno.WP7Client.ViewModels.FacebookViewModel.LoginSucceded(String accessToken)
at TestReactive.com.beno.WP7Client.ViewModels.FacebookViewModel.webBrowser_Navigated(Object sender, NavigationEvPID:0ED1004E TID:0F8A0042 entArgs e)
at Microsoft.Phone.Controls.WebBrowser.FireNavigatedEvent(Uri uri)
at Microsoft.Phone.Controls.WebBrowserInterop.ReversePInvokeThunk.OnNavigated(Int32 webBrowserControlId, String uri)

Please help me to resolve this problem.

Not Implemented Exception thrown when using Windows phone 8.1 SDK

I am working through the samples for login on the facebooksdk.net site and have the sample for login working for a Windows store app working as expected.

I cannot get the sample for a Windows Phone app to work properly, however. When I follow the sample, I have to first modify the XAML namespace sample from: xmlns:facebookControls="clr-namespace:Facebook.Client.Controls;assembly=Facebook.Client" to xmlns:facebookControls="using:Facebook.Client.Controls". This is the same as it is for the Windows Store application and prevents a compilation error in VS 2013 from occurring. Even after doing this, I do NOT see the login button appear in the designer as I do for the Windows app. At runtime the button does appear in the emulator or on a device. When clicking the Facebook login button a “Not Implemented Exception” is thrown from deep in the stack which appears to be coming from Facebook.Client.FacebookSessionClient as can be seen in this stack trace:

at Windows.Security.Authentication.Web.WebAuthenticationBroker.AuthenticateAsync(WebAuthenticationOptions options, Uri requestUri, Uri callbackUri)
at Facebook.Client.FacebookSessionClient.d__24.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter1.GetResult() at Facebook.Client.FacebookSessionClient.<LoginAsync>d__18.MoveNext() --- End of stack trace from previous location where exception was thrown --- at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task) at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task) at System.Runtime.CompilerServices.TaskAwaiter1.GetResult()
at Facebook.Client.FacebookSessionClient.d__e.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter`1.GetResult()
at Facebook.Client.Controls.LoginButton.d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
at System.Runtime.CompilerServices.TaskAwaiter.GetResult()
at Facebook.Client.Controls.LoginButton.d__3.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
at System.Runtime.CompilerServices.AsyncMethodBuilderCore.b__3(Object state)
at System.Threading.WinRTSynchronizationContext.Invoker.InvokeCore()

I am wondering if this is something that is known and if there is a work around for this issue? Here are the versions of the NuGet packages that I am currently using:
Facebook: 6.0.10.0
Facebook.Client: 0.9.1.0
Visual Studio 2013 R3 with .NET 4.5.1

Back navigation

If you hit the button "Login To Facebook" then the page with the facebook login UI loads.
Then when i hit the back button on my phone i get a black screen and a error message then when i hit back again i'm seeing the MainPage.xaml. Now the "Login To Facebook" button does not show the login UI but gives a direct error message.

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