private void button8_Click(object sender, EventArgs e) { try { dispenser.SetConfiguration(tbDispPort.Text, Int32.Parse(tbDispBaudRate.Text), (Parity)Enum.Parse(typeof(Parity), tbDispParity.Text), Int32.Parse(tbDispBits.Text), (StopBits)Enum.Parse(typeof(StopBits), tbDispStopBits.Text)); dispenser.Open(); button6.Enabled = true; button5.Enabled = true; button9.Enabled = true; button8.Enabled = false; button21.Enabled = true; } catch { button6.Enabled = false; button5.Enabled = false; button9.Enabled = false; button21.Enabled = false; } }