private void GenerateRandomLottoNumbers() { RandomNumbers.Clear(); while (RandomNumbers.Count < numberOfLottoNumbers) { int nextNumber = Randomizer.Next(lowerBound, lottoNumberUpperBound + 1); while (RandomNumbers.Contains(nextNumber)) { nextNumber = Randomizer.Next(lowerBound, lottoNumberUpperBound + 1); } RandomNumbers.Add(nextNumber); } }