public void GetMissingPermissionsAsync(IEnumerable <Permissions> permissions, AsyncCompletedEventHandler callback)
{
Verify.IsNotNull(permissions, "permisions");
Verify.IsNotNull(callback, "callback");
Assert.IsNotNull(_facebookApi);
Assert.IsNotNull(callback);
Task.Factory.StartNew(() =>
{
Exception ex = null;
Permissions[] missingPermissions = null;
try
{
missingPermissions = _facebookApi.GetMissingPermissions(permissions).ToArray();
}
catch (Exception e)
{
ex = e;
}
callback(this, new AsyncCompletedEventArgs(ex, false, missingPermissions));
});
}
