private void RemovePlayer_Click(object sender, RoutedEventArgs e) { if (DataGridPlayer.SelectedItems.Count > 1) { foreach (Player s in DataGridPlayer.SelectedItems) { tournamentController.RemovePlayer(s); } } else if (DataGridPlayer.SelectedIndex >= 0) { tournamentController.RemovePlayer(DataGridPlayer.SelectedIndex); } RefreshDataGridPlayer(tournamentController.ActiveTournament.Participants); }