c# - 线程之间的串行端口通信

经过大量研究，我仍然感到困惑。我有一个连续读取数据的串行端口对象。我能够执行的操作将生成dataReceived事件，与端口进行通信，并将接收到的值输出到调试窗口。因此，我很确定这一切都可以正常进行。问题是，当我尝试将串行端口输出传递到我的原始线程时，出现错误。它说我不能进行线程串扰(或类似的事情)。我一直在尝试使用backgroundWorker，但是我不确定这是我想要的解决方案，加上我的新手技能，这会有点麻烦。而且我尝试使用invoke，但是该方法似乎不可用。 (我可能是从错误的对象打电话来的？)无论如何，下面的部分。

namespace Photometer
{
    class csRadiometerILT1700
    {
        //manufacturer specs for baud rate, databits, and stop bits
        static string portName="COM1";
        static int baudRate = 1200;
        static int dataBits = 8;
        //instantialize a serial port object for the Radiometer
        private SerialPort RadiometerSerial = new SerialPort(portName, baudRate, Parity.None, dataBits, StopBits.One);


        //constructor
        //public csRadiometerILT1700(Form ParentForm, Chart outputChart)
        public csRadiometerILT1700()
        {


            //two handshaking properties of the ILT1700. Handshaking is enabled and
            //http://stackoverflow.com/questions/6277619/problem-reading-serial-port-c-net-2-0-to-get-weighing-machine-output
            RadiometerSerial.Handshake= Handshake.RequestToSend;
            RadiometerSerial.DtrEnable = true;

            RadiometerSerial.DataReceived += new SerialDataReceivedEventHandler(RadiometerSerial_DataReceived);

        }

        public void openPort()
        {
            if (!RadiometerSerial.IsOpen)
            {
               RadiometerSerial.Open();
            }

        }
        public void closePort()
        {
            RadiometerSerial.Close();
        }

        string RadiometerVoltageReadingString;
        int RadiometerVoltageReadingInt;
        private void RadiometerSerial_DataReceived(object sender, SerialDataReceivedEventArgs e)
        {
            //It's here that this.invoke()... cannot be called.

            RadiometerVoltageReadingString= (RadiometerSerial.ReadExisting().ToString());    //y-value
            Debug.Print(RadiometerVoltageReadingString.ToString());

            makeRadioReadingDouble(RadiometerVoltageReadingString);

        }

        private void makeRadioReadingDouble(string inputVoltageString)
        {

            List<double> outputVoltageDouble=new List<double>(2);


            if (!(inputVoltageString == "\r\n" || inputVoltageString == ""))
            {
                string[] voltageValAndExpo = inputVoltageString.Split(new string[] { "e", "\r\n" }, StringSplitOptions.RemoveEmptyEntries);

                for (int inCounter = 0; inCounter < voltageValAndExpo.Count(); inCounter=inCounter+2)
                {
                    double voltageVal = Convert.ToDouble(voltageValAndExpo[inCounter]);
                    double voltageExpo = Convert.ToDouble(voltageValAndExpo[inCounter + 1]);

                    outputVoltageDouble.Add(Math.Pow(voltageVal, voltageExpo));
                }
            }
        }

    }
}

当我用代码形成负载时，所有这些都被称为

            csRadiometerILT1700 Radiometer;

            ...

            Radiometer = new csRadiometerILT1700();
            Radiometer.openPort();

任何见解均表示赞赏。

编辑:
我将csRadiometerILT1700构造函数更改为

   public csRadiometerILT1700(Form inputForm)
    {

        //inputForm.Invoke(
        //two handshaking properties of the ILT1700. Handshaking is enabled and
        //http://stackoverflow.com/questions/6277619/problem-reading-serial-port-c-net-2-0-to-get-weighing-machine-output
        RadiometerSerial.Handshake= Handshake.RequestToSend;
        RadiometerSerial.DtrEnable = true;

        RadiometerSerial.DataReceived += new SerialDataReceivedEventHandler(RadiometerSerial_DataReceived);
        inputForm.Invoke(DataReceived);
    }

并声明

public event Delegate DataReceived;

在csRadiometerILT1700类中。但这给了我一个错误:“Datareceived必须是委托(delegate)类型。”我现在该如何解决？我在正确的轨道上吗？

最佳答案

您的RadiometerILT1700类需要一个event来报告其已接收(和已处理)的数据。

您的表格订阅了该事件

Forms事件处理程序使用this.Invoke()来克服跨线程问题。