// Then you can get slots based in index.
string[] idsFromDb = "0|5|10|15|20|25|30|35".Split("|");
List<int> serializedIds = new List<int>();
foreach (string idFromDb in idsFromDb) serializedIds.Add(Convert.ToInt32(idFromDb));
Console.WriteLine(serializedSlots[7]); // Output: "35" as INT.