/// <summary>
 /// Close this instance.
 /// </summary>
 public void Close()
 {
     if (dbHelper != null) {
     dbHelper.Close();
     dbHelper = null;
       }
 }
 /// <summary>
 /// Initializes a new instance of the <see cref="PortaPodder.PortaPodderDataSource"/> class.
 /// </summary>
 public PortaPodderDataSource()
 {
     dbHelper = new PortaPodderSQLHelper();
 }