private void deleteExpiredSentItemsButton_Click(object sender, RibbonControlEventArgs e)
{
var expiredSentItems = new ExpiredSentItems();
// Setup the progress dialog.
m_progressDialog = new ProgressDialog { WindowTitle = DefaultWindowTitle, LabelContent = "Deleting..." };
m_progressDialog.Canceled += progressDialog_Canceled;
m_progressDialog.Maximum = expiredSentItems.Count;
// this sets up an enumeration to give us one Outlook item at a time in reverse order--suitable for deleting
m_expiredMailItems = expiredSentItems.GetEnumerator();
// Start the deleting and show the progress dialog
DeleteMailItem();
m_progressDialog.ShowDialog();
if (m_expiredMailItems != null) // not canceled
m_expiredMailItems.Dispose();
}
