_stream = new wxChoice (this, wxID_ANY);
grid->Add (_stream, wxGBPosition (r, 1));
_description = add_label_to_grid_bag_sizer (grid, this, "", false, wxGBPosition (r, 3));
_stream = new wxChoice (this, wxID_ANY);
grid->Add (_stream, wxGBPosition (r, 1));
_description = add_label_to_grid_bag_sizer (grid, this, "", false, wxGBPosition (r, 3));