在两种不同形式上使用相同的串口数据接收事件 [英] Using same serial port data received event on two different forms

问题描述

我的 SerialDataReceivedEventHandler 出现问题，无法响应串行端口中的数据.

I have a problem with my SerialDataReceivedEventHandler whitch fails to respond to data in serail port.

我有一个主要形式，我打开端口并执行其他需要完成的工作以进行正确的串行端口通信(发送和接收工作)！然后我在同一个项目中打开另一个表单，它需要相同的串口进行读写！问题是我在 form2 中的 SerialDataReceivedEventHandler 不工作 jet 它与主表单中的第一个完全相同.(如果我在主窗体中调用 serial.close() 应用程序冻结或导致巨大延迟)

I have one main form in whitch i open port and do other stuf whitch need to be done for proper serial port communication (sending and receiving work)! Then i open another form in same project whitch need same serial port for reading and writing! Problem is that my SerialDataReceivedEventHandler in form2 not working jet it is completely identical to the first in mainform. (if i call serial.close() in main form app freezes or cause huge delay)

可能我必须从这个事件公开我的主要内容，但我仍然不知道如何使我的自定义事件或其他会触发表单 2 中的事件的东西，数据到达端口

probably i have to make in my main from this event public, but i still don't konow how to make my custom event or something else that will trigger the event in form 2 that data is arrived on port

我找到此链接寻求帮助，但不适用于我的应用.

I found this link for help but does not work with my app.

http://social.msdn.microsoft.com/Forums/en/netfxbcl/thread/7efccf0e-b412-4869-b942-a006773a833f

我使用的是 VS2008,framework3.5(智能设备项目)

i'm using VS2008,framework3.5 (smart device project)

有人可以帮我吗?，拜托了！

can somebody help me with that? , Please!

推荐答案

将您的 SerialPort 消耗移动到单独的静态(或单例)类中.在该类中创建一个 DataReceived 事件并在每次接收到数据时触发它.让两个表单都订阅 DataReceived 事件 - 这样两个表单都会接收数据.

Move your SerialPort consumption into a separate static (or a singleton) class. Create a DataReceived event in that class and fire it every time data is received. Have both forms subscribe to the DataReceived event - this way both forms will receive the data.

编辑 1:伪代码示例

public static class Serial {
    public static delegate void DataReceivedEventHandler(object sender, ReceivedEventArgs e);
    public static event DataReceivedEventHandler DataReceived;
    static SerialPort serialPort = new SerialPort();        

    static Serial() {
        serialPort = new SerialPort();
        serialPort.DataReceived += Incoming;
        serialPort.Open();
    }

    private static void Incoming(object sender, SerialDataReceivedEventHandler args) {
        if (DataReceived != null) {
           ReceivedEventArgs rea = new ReceivedEventArgs {Data = args.Data};
           DataReceived(this, rea);
        }
    }
}

public class ReceivedEventArgs : EventArgs {
   public string Data { get; set;}
}

public class Form1: Form {
    public Form1() {
       Serial.DataReceived += Incoming;
    }

    private void Incoming(object sender, ReceivedEventArgs e) {
        // you receive the data here
        Debug.WriteLine(e.Data);
    }
}

public class Form2: Form {
    public Form2() {
       Serial.DataReceived += Incoming;
    }

    private void Incoming(object sender, ReceivedEventArgs e) {
        // you receive the data here
        Debug.WriteLine(e.Data);
    }
}

再说一次，这是伪代码，附近没有编译器.希望这会有所帮助.

Again, this is pseudo code, without compiler nearby. Hope this helps.

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