SuperPutty.dlgEditSession.textBoxPort_Validating C# (CSharp) 메소드

        private void textBoxPort_Validating(object sender, CancelEventArgs e)
        {
            int val;
            if (!Int32.TryParse(this.textBoxPort.Text, out val))
            {
                e.Cancel = true;
                this.SetError(this.textBoxPort, "Invalid Port");
            }
        }