private void FavoriteClick(object sender, EventArgs e)
{
ProgressBar.IsIndeterminate = true;
ProgressBar.Visibility = Visibility.Visible;
var twitter = new TwitterHelper();
twitter.FavoriteCompletedEvent += (sender2, e2) =>
{
ProgressBar.IsIndeterminate = false;
ProgressBar.Visibility = Visibility.Collapsed;
MessageBox.Show("Item added to favorites");
};
twitter.ErrorEvent += (sender2, e2) =>
{
ProgressBar.IsIndeterminate = false;
ProgressBar.Visibility = Visibility.Collapsed;
};
twitter.FavoriteItem(_detailItem.Id);
}