private void btnConnect_Click(object sender, EventArgs e)
{
try
{
if (serial == null)
{
try
{
string portName = this.cmbPort.Text;
SerialPortBaudRates baud =
(SerialPortBaudRates)Enum.Parse(typeof(SerialPortBaudRates), cmbBaudRate.Text);
SerialPortDatabit databit =
(SerialPortDatabit)Enum.Parse(typeof(SerialPortDatabit), cmbDataBit.Text);
Parity parity = (Parity)Enum.Parse(typeof(Parity), cmbParity.Text);
StopBits stopBits = (StopBits)Enum.Parse(typeof(StopBits), cmbStopBit.Text);
//使用枚举构造函数
//serial = new SerialPortUtil(portName, baud, parity, databit, stopBits);
//使用字符串构造函数
serial = new SerialPortUtil(portName, cmbBaudRate.Text, cmbParity.Text, cmbDataBit.Text, cmbStopBit.Text);
serial.DataReceived += serial_DataReceived;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
serial = null;
return;
}
}
if (!isOpen)
{
//打开串口通讯
serial.OpenPort();
btnConnect.Text = "断开";
//m_receiveT = new Thread(Receive);
//m_receiveT.IsBackground = true;
//m_receiveT.Start();
}
else
{
serial.ClosePort();
//m_receiveT.Abort();
btnConnect.Text = "连接";
}
isOpen = !isOpen;
this.btnSend.Enabled = isOpen;
this.labState.Text = isOpen ? "已连接" : "未连接";
}
catch (Exception ex)
{
this.labState.Text = ex.Message;
MessageBox.Show(ex.Message);
}
}
/// <summary>
/// 参数构造函数（使用字符串参数构造）
/// </summary>
/// <param name="name">串口号</param>
/// <param name="baud">波特率</param>
/// <param name="parity">奇偶校验位</param>
/// <param name="databit">数据位</param>
/// <param name="stopbit">停止位</param>
public SerialPortUtil(string name, string baud, string parity, string databit, string stopbit)
{
_portName = name;
_baudRate = (SerialPortBaudRates)Enum.Parse(typeof(SerialPortBaudRates), baud);
_parity = (Parity)Enum.Parse(typeof(Parity), parity);
_dataBits = (SerialPortDatabit)Enum.Parse(typeof(SerialPortDatabit), databit);
_stopBits = (StopBits)Enum.Parse(typeof(StopBits), stopbit);
_comPort.DataReceived += new SerialDataReceivedEventHandler(comPort_DataReceived);
_comPort.ErrorReceived += new SerialErrorReceivedEventHandler(comPort_ErrorReceived);
}
/// <summary>
/// 默认构造函数
/// </summary>
public SerialPortUtil()
{
_portName = "COM1";
_baudRate = SerialPortBaudRates.BaudRate_9600;
_parity = Parity.None;
_dataBits = SerialPortDatabit.EightBits;
_stopBits = StopBits.One;
_comPort.DataReceived += new SerialDataReceivedEventHandler(comPort_DataReceived);
_comPort.ErrorReceived += new SerialErrorReceivedEventHandler(comPort_ErrorReceived);
}
/// <summary>
/// 参数构造函数（使用枚举参数构造）
/// </summary>
/// <param name="name">串口号</param>
/// <param name="baud">波特率</param>
/// <param name="parity">奇偶校验位</param>
/// <param name="databit">数据位</param>
/// <param name="stopBits">停止位</param>
public SerialPortUtil(string name, SerialPortBaudRates baud, Parity parity, SerialPortDatabit databit, StopBits stopBits)
{
_portName = name;
_baudRate = baud;
_parity = parity;
_dataBits = databit;
_stopBits = stopBits;
_comPort.DataReceived += new SerialDataReceivedEventHandler(comPort_DataReceived);
_comPort.ErrorReceived += new SerialErrorReceivedEventHandler(comPort_ErrorReceived);
}