Generation thing

          public Dictionary<int, string> GenerateKey(Case c, int amount, int length)
          {
               if (rand == null) rand = new Random();
               if (Keys.Count() > 0) Keys.Clear();

               //Run the amount of keys
               for (int a = 0; a < amount; a++) {
                    //Generate Chars here
                    for (int l = 0; l < length; l++){
                         Boolean isNumber = rand.Next(0, 50) <= 30;
                         Boolean IsUpper = rand.Next(0, 50) <= 30;
                         builder.Append((isNumber ? Numbers.ElementAt(rand.Next(0, Numbers.Length)) : c == Case.both ? (IsUpper ? char.ToUpper(Charaters.ElementAt(rand.Next(0, Charaters.Length))) : Charaters.ElementAt(rand.Next(0, Charaters.Length))) : c == Case.upper ? char.ToUpper(Charaters.ElementAt(rand.Next(0, Charaters.Length))) : char.ToLower(Charaters.ElementAt(rand.Next(0, Charaters.Length)))));
                    }
                    Keys.Add(a, builder.ToString());
                    builder.Clear();
               }

               return Keys;
          }