hMailServer.Administrator.ucDistributionList.EnableDisable C# (CSharp) Method

        private void EnableDisable()
        {
            buttonEdit.Enabled = listRecipients.SelectedItems.Count == 1;
            buttonDeleteRecipient.Enabled = listRecipients.SelectedItems.Count > 0;

            textRequireAddress.Enabled = optModeAnnouncements.Checked;
        }