private void btnUpdate_Click(object sender, RoutedEventArgs e)
 {
     ChangeBank cb_update = new ChangeBank();
     cb_update.ShowUpdateWindow((sender as Button).Tag as CarrierBankInfo);
     cb_update.Closed += (s, er) =>
     {
         LoadGrid();
     };
 }
 private void btnAdd_Click(object sender, RoutedEventArgs e)
 {
     ChangeBank cb_add = new ChangeBank();
     cb_add.ShowAddWindow();
     cb_add.Closed += (s, er) =>
     {
         LoadGrid();
     };
 }