hMailServer.Administrator.ucRules.buttonMoveUp_Click C# (CSharp) Method

        private void buttonMoveUp_Click(object sender, EventArgs e)
        {
            if (listRules.SelectedItems.Count != 1)
                return;

            int id = Convert.ToInt32(listRules.SelectedItems[0].Tag);
            hMailServer.Rule rule = _rulesCollection.get_ItemByDBID(id);
            rule.MoveUp();
            ListRules();

            SelectRule(id);
        }