在两种不同的形式上使用相同的串行端口 [英] Using same serialport on two different forms

问题描述

我有两种形式 = Form1.CS 和 SMS.CS在第一个表单 (Form1) 上，我已经配置好并准备好使用 serialport1.我有按钮，称为发送消息.此按钮会打开名为 SMS.cs 的新表单.

I have two forms = Form1.CS and SMS.CS on the first form (Form1) i've configured and ready to work serialport1. I have button which is called send message. This button opens new form called SMS.cs.

private void SMS_Click(object sender, EventArgs e)
    {
        SMS settings = new SMS();
        settings.ShowDialog();
    }

我想将我配置的 serialport1 用于表单:Form1 和表单 SMS.cs.也可以从表单接收 SMS 数据，然后使用 Form1 上的 serialport1 发送它，例如:

I'd like to use my configured serialport1 on to forms: Form1 and form SMS.cs. It's also possible to receive from form SMS data, and send it using serialport1 on Form1 for example:

 private void SMS_Click(object sender, EventArgs e)
    {
        SMS settings = new SMS();
        settings.ShowDialog();
        SerialPort1.Writeln(Data from form SMS)
    }

但是我不知道该怎么做.我认为最好的主意是直接从 SMS 表单发送数据..

but i don't know how to do it. The best idea in my opinion is to send data directly from SMS form..

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO.Ports;

namespace WindowsFormsApplication1
{
    public partial class SMSForm : Form
    {
        SerialPort SerialP;

        public SMSForm(Object SerialP)
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e) 
        {
            SerialP.WriteLine("ATI");
        }
    }
}

推荐答案

Form1 是 SerialPort 控制器 - 即 Form1 配置 SerialPort.如果您有一个影响 SerialPort 的事件，例如SerialPort1.Writeln"，您应该将方法引用传递给对话框构造函数.这将在逻辑上保持类分开，同时共享方法.

Form1 is the SerialPort controller - that is, Form1 configures SerialPort. If you have an event that affects SerialPort, such as `SerialPort1.Writeln', you should pass a method reference to the dialog constuctor. This will logically keep classes separate while sharing methods.

您可以创建一个自定义的 EventArgs 对象来将字符串传回您的 SerialPort:

You can create a custom EventArgs object to pass the string back to your SerialPort:

public class WriteToSerialPortEventArgs : EventArgs
{
    public WriteToSerialPortEventArgs (string Write)
    { WriteBytes = Encoding.GetBytes(write); }  // simplified - see MSDN for more options 

    public byte[] WriteBytes
    { get; private set; }   
}

Form1 传递给 SMS 对话框的示例事件委托:

Form1 sample event delegate passed to your SMS dialog:

void OnWriteToSerialPort(object sender, WriteToSerialPortEventArgs e )
{
    SerialPort1.WriteLine(e.WriteBytes);
}

编写您的 SMS 构造函数:

Write your SMS constructor:

// field
Action<object, WriteToSerialPortEventArgs> writeDelegate;

public SMS (Action<object, WriteToSerialPortEventArgs> writeDelegate)
{
    this.writeDelegate = writeDelegate;
    this.button1.Click += new EventHandler(button1_Click);
}

...短信事件委托:

void button1_Click(object sender, EventArgs e)
{
    writeDelegate.Invoke(sender, new WriteToSerialPortEventArgs (txtBox.Text);
}

从技术上讲，您不需要完整的 Invoke(...) 方法签名.我把它包括在内是为了完整性，可以写成:

Technically, you don't need the full Invoke(...) method signature. I included it for completeness and can be written as:

writeDelegate(sender, new WriteToSerialPortEventArgs (txtBox.Text);

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