hMailServer.Administrator.ucRules.EnableDisable C# (CSharp) Метод

        private void EnableDisable()
        {
            buttonEditRule.Enabled = listRules.SelectedItems.Count == 1;
            buttonDeleteRule.Enabled = listRules.SelectedItems.Count > 0;

            buttonMoveUp.Enabled = listRules.SelectedItems.Count == 1;
            buttonMoveDown.Enabled = listRules.SelectedItems.Count == 1;
        }