SkydriveDeleteFolder.cs

private async void DeleteButton_Click(object sender, RoutedEventArgs e)
{
    try
    {
        if (FolderBox.SelectedItem != null)
        {
            //DeleteAsync中傳入要刪除的資料夾ID
            LiveOperationResult operationresult = await liveClient.DeleteAsync((FolderBox.SelectedItem as ListBoxItem).Tag.ToString());
            MessageDialog msg = new MessageDialog("Folder deleted");
            await msg.ShowAsync();
        }
    }
    catch (LiveConnectException ex)
    {
        MessageDialog msg = new MessageDialog(ex.Message);
        msg.ShowAsync();
    }
}