WPF4 DataGrid Delete Rows in RowDetailsTemplate's DataGrid

Question

I had a WPF4 DataGrid Control which contains another DataGrid Control in it's RowDetailsTemplate. I add a PreviewKeyDown event on both DataGrid control and monitor they're Keyboard operations. If press Delete key on keyboard, I'll delete the SelectedItems in DataGrid Control. My problem is when I want to delete a row in RowDetailsTemplate DataGrid Control. The event routed, The row in Parent DataGrid which define the RowDetailsTemplate was deleted,too. I know it's because of the RoutedEvent.RoutingStrategy settings. But how could I only delete the row in RowDetailsTemplate DataGrid? Thanks.

Answer 1

Just add an attached behavior to the nested datagrid. So that it should not bubble the deleted event anymore..