Hi there

You can just add a handler to the grid's RecordsDeleting method and prompt yourself. In that case, don't forget to set the e.Cancel property to true, or the prompt will appear anyway:

     /// <summary>
    /// A grid event handler, which can be bound to the corresponding event
    /// of an editor grid in order to handle deletion on all selected items.
    /// </summary>
    protected virtual void OnRecordsDeleting(object sender, RecordsDeletingEventArgs e)
    {
      //delegate deletion

      List<ISynchronizableEntity> list = new List<ISynchronizableEntity>(e.Records.Count);
      foreach (DataRecord record in e.Records)
      {
        list.Add((ISynchronizableEntity) record.DataItem);
      }

      MyDeletionHandler(list);
      e.Cancel = true;
    }

hth,

Philipp