public string Print(string username) { if (!usersString.Contains(username)) { return(""); } return(string.Join("", usersString.GetValue(username))); }
public void Substring(string username, int startIndex, int length) { if (this.users.Contains(username)) { var count = this.GetCount(username); SaveOldValue(username); var newString = this.users.GetValue(username).GetRange(startIndex, length); this.users.GetValue(username).RemoveRange(0, count); users.GetValue(username).InsertRange(0, newString); } }