private void EditPlayer() { if (DataGridPlayer.SelectedItems.Count > 1) { tournamentController.ActiveIO.ShowMessage("Please select only 1 player you want to edit."); return; } if (DataGridPlayer.SelectedIndex >= 0) { tournamentController.EditPlayer(new NewPlayerDialog(tournamentController.ActiveTournament.Rule), DataGridPlayer.SelectedIndex); RefreshDataGridPlayer(tournamentController.ActiveTournament.Participants); } }