List<string> listName = new List<string>();
listName.Clear();
listName.AddRange(new string[]{"string data", "string data 2", "string data 3", "string data 4", "string data 5", "string data 6", "string data 7", "string data 8", "string data 9", "string data 10"});
return listName[new Random().Next(0, listName.Count - 1)];