public void Ready() { var ids = new List <int> { LogTypes.AccountOpen, LogTypes.AccountRecharge, LogTypes.AccountSuspend, LogTypes.AccountResume, LogTypes.AccountChangeName, LogTypes.AccountTransfer, LogTypes.AccountRenew, }; foreach (var idNamePair in LogType.Items.ToArray()) { if (!ids.Contains(idNamePair.Key)) { LogType.Items.Remove(idNamePair); } } LogType.BindAll(); }