private void AddDifficultyLevel()
{
_nameAndScoreInputViewCommand.Execute();
if (!string.IsNullOrWhiteSpace(_nameAndScoreInputViewCommand.Name))
{
_difficultyLevelService.Create(_difficultyLevelScale, _nameAndScoreInputViewCommand.Name,
_nameAndScoreInputViewCommand.Score);
}
LoadData(_difficultyLevelScale);
}
