Question

My program needs to receive strings through the serialport.
Problem is that the program is stuck on ReadLine when there’s no input.
Is there a way to call the function startReading when a line is read by SP.ReadLine?

void GetInput()
{
        SerialPort SP = new SerialPort();
        SP.PortName = "COM3";
        SP.Open();
        string Line = string.Empty;
        While(Line == "")
         {
                    Line = SP.ReadLine();
                    Application.DoEvents();
         }
          StartReading();
}

void StartReading()
{
}

Answer 1

    private void GetInput()
    {
        SerialPort SP = new SerialPort();
        SP.PortName = "COM3";
        SP.DataReceived += new SerialDataReceivedEventHandler(SP_DataReceived);
        SP.Open();
    }

    private void SP_DataReceived(object sender, SerialDataReceivedEventArgs e)
    {
        SerialPort serialPort = (SerialPort)sender;
        string line = serialPort.ReadLine();
        StartReading();
    }

    private void StartReading()
    {
    }