private void SetAccessToken(Action callback)
{
FacebookContext context = new FacebookContext();
context.GetAccessToken(App.Current.FacebookSettings.AccessTokenUrl,
App.Current.FacebookSettings.ApplicationID,
App.Current.FacebookSettings.RedirectUrl,
App.Current.FacebookSettings.ApplicationSecret,
AuthorizationCode,
(invokeOp) =>
{
if (!invokeOp.HasError)
{
AccessToken = invokeOp.Value;
if (callback != null)
{
callback();
}
}
else
{
MessageBox.Show(invokeOp.Error.ToString());
}
},
null);
}
