Comport DataReceived对窗口窗体的可见性

Question

我被要求编写一个串行端口库来处理应用程序所需的串行端口功能。从主Windows窗体调用库的方法 openComportToTuneSuite（），并设置串口进行通信，包括分配“ portMessageReceivedFromTuneSuite ”引发 comport.DataReceived 事件时的方法。一切似乎都运作良好;但是我无法解决如何使DataReceived方法返回的数据（下面的代码中的“_response”）对主窗口窗体可见。由于在库中设置EventHandler而不是从主Windows窗体调用特定方法的结果（这将允许返回响应）调用此方法，因此没有机会将_response发回申请。

有人可以引导我朝正确的方向指导如何将从DataReceived方法收到的数据从支持库调用到主窗口窗口吗？

图书馆方法

 public string openComportToTuneSuite()
    {    
       _tuneSuiteComport.BaudRate = 19200;
       _tuneSuiteComport.DataBits = 8;
       _tuneSuiteComport.StopBits = StopBits.One;
       _tuneSuiteComport.Parity = Parity.None;
       _tuneSuiteComport.PortName = "COM11";
       _tuneSuiteComport.Handshake = Handshake.None;
       _tuneSuiteComport.RtsEnable = true;
       _tuneSuiteComport.Open();
       _tuneSuiteComport.DataReceived += portMessageReceivedFromTuneSuite;
    }


   private void portMessageReceivedFromTuneSuite(object sender, SerialDataReceivedEventArgs e)
    {
        string _response = "";
        var responseFromChronos = _tuneSuiteComport.ReadExisting();
        var responseArray = responseFromChronos.Split('\r');
        foreach (var response in responseArray)
        {
            _response = _response + response.ToString() + Environment.NewLine;
        }
        //return _response;
        return;
    }