private void ExecuteConfirmStageEdit(object parameter)
{
Stage newStage = new Stage(CompetitionID, Name, Rules);
UInt32 id = SelectedStage.ID;
stageModel.EditStage(newStage, id);
ClearInput();
EditedStageId = null;
IsCompetitionsEnabled = true;
Stages = stageModel.GetCompetitionStages(SelectedCompetition.Id).Convert();
}
