randomlist

// Get a list of non-repeatable random numbers 
List<int> GenerateRandomList(Random random, int size)
{
  int num, i = 0;
  List<int> list = new List<int>();

  do{
    num = random.Next(0, size) + 1;
                
    if (!list.Contains(num))
    {
      list.Add(num);
      i++;
    }
  } while (i < size);

  return list;
}