private void CmdUpdateExecute()
 {
     AddOrUpdateOne winUpdate = new AddOrUpdateOne(this.SelectedItem);
     winUpdate.Owner = Application.Current.MainWindow;
     winUpdate.HandleCompleted += AddOrUpdate_HandleCompleted;
     winUpdate.ShowDialog();
 }
 /// <summary>
 /// 添加一级目录
 /// </summary>
 private void CmdAddExecute()
 {
     AddOrUpdateOne winOne = new AddOrUpdateOne(null);
     winOne.HandleCompleted += AddOrUpdate_HandleCompleted;
     winOne.Show();
 }