AsterixDisplayAnalyser.FrmAstxRecFrwdForm.listBoxForwardingPort_SelectedIndexChanged C# (CSharp) Метод

        private void listBoxForwardingPort_SelectedIndexChanged(object sender, EventArgs e)
        {
            this.listBoxForwardingInterface.SelectedIndex = this.listBoxForwardingPort.SelectedIndex;
            this.listBoxForwardingMulticast.SelectedIndex = this.listBoxForwardingPort.SelectedIndex;
            if (this.listBoxForwardingPort.SelectedIndex != -1)
                this.numericUpDown1.Value = this.listBoxForwardingPort.SelectedIndex + 1;
        }