public MessageProxy(TMessageEntry message, FxProxyPool <TFolderEntry, TMessageEntry> owner) : base(message, true)
 {
     this.owner = owner;
 }
 public FolderProxy(TFolderEntry folder, FxProxyPool <TFolderEntry, TMessageEntry> owner) : base(folder, true)
 {
     this.owner = owner;
 }