private void HandleDropboxAuth(object sender, NavigationRoutedEventArgs e) {
//if (_GeneratedToken == null && e.Uri.ToString().StartsWith(_UsedConfig.AuthorizationCallBack.ToString()))
//{
// _GeneratedToken = DropBoxStorageProviderTools.ExchangeDropBoxRequestTokenIntoAccessToken(_UsedConfig, Networks.DropBoxAuth.Key, Networks.DropBoxAuth.Secret, _CurrentRequestToken);
// (sender as Window).Close();
// CloudStorage cs = new CloudStorage();
// cs.Open(_UsedConfig, _GeneratedToken);
// Complete(cs.IsOpened, "Dropbox");
// //cs.SerializeSecurityToken(_GeneratedToken);
// cs.Close();
//}
}