[c#]
private Node[] GetSelection(FlyGrid flyGrid)
{
  if ((flyGrid.Options & GridOptions.MultiSelect) != 0)
  {
    NodeBase[] selection = flyGrid.Rows.GetSelection();
    //has multiple selection  
    if (selection != null && selection.Length > 0)
      return selection;
  }
  //has single selection - selected/focused node
  return new NodeBase[]{flyGrid.Selected};
}