一个多种形式的串口

Question

我想问你们有关在一个项目中将一个串口传递给多个表单的人。我完成了从“主”窗体传递到“Form1”，但我不知道如何通过按钮，组合框等处理它。我想以单独的形式更改串口参数。我在c＃中很新，我无法理解。

形式“主要”

namespace RS232
{
public partial class mainform : Form
{
    Form1 frm1;
    Form2 frm2;

    public mainform()
    {
        InitializeComponent();
        this.Text = "Mitasubaszi controller";
        frm1 = new Form1(sport);
        frm2 = new Form2();            
    }      

    public void toolStripMenuItem9_Click(object sender, EventArgs e)
    {
        DialogResult resultquit;
        resultquit = MessageBox.Show("Are you sure?","Warning", MessageBoxButtons.YesNo);
        if (resultquit == System.Windows.Forms.DialogResult.Yes)
        {
            if (sport.IsOpen) sport.Close();
            Close();
        }           

    }

    private void toolStripMenuItem6_Click(object sender, EventArgs e)
    {
        frm1.ShowDialog();   
    }


    private void toolStripMenuItem5_Click(object sender, EventArgs e)
    {
        frm2.ShowDialog();
    }
}
}

表格“Form1”

namespace RS232
{

public partial class Form1 : Form
{

    int brate;


    public Form1(System.IO.Ports.SerialPort main)
    {
        InitializeComponent();
        initvalue(main);                     
    }      


    public void initvalue(System.IO.Ports.SerialPort initport)
    {   
        boxbaud.SelectedIndex = 5;
        boxdata.SelectedIndex = 3;
        boxpar.SelectedIndex = 0;
        boxstop.SelectedIndex = 2;
        checkDTR.Checked = true;
        checkRTS.Checked = true;
        initport.BaudRate = 9600;
        initport.DataBits = 8;
        initport.PortName = "COM1";
        initport.DtrEnable = true;
        initport.RtsEnable = true;
        initport.Parity = System.IO.Ports.Parity.Even;
        initport.StopBits = System.IO.Ports.StopBits.Two;           
    }    

    public void button1_Click(object sender, EventArgs e)
    {
        this.Close();            
    }

    private void Form1_Load(object sender, EventArgs e)
    {

    }

    private void DTR_CheckedChanged(object sender, EventArgs e)
    {
        if (checkDTR.Checked) .DtrEnable = true;
        else .DtrEnable = false;            
    }

    public void numericUpDown1_ValueChanged(object sender, EventArgs e)
    {
        try
        {
            if (.IsOpen) .Close();
            int comvalue = Convert.ToInt32(numericUpDown1.Value);
            string comport = String.Format("COM{0}", comvalue);

        }
        catch
        {
            MessageBox.Show("Port does not exist");
        }
    }

    public void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (boxbaud.SelectedIndex == -1) MessageBox.Show("Baud Rate is not selected", "Warning");
        else
        {
            brate = Convert.ToInt32(boxbaud.SelectedItem);

        }

    }

    private void button7_Click(object sender, EventArgs e)
    {
        string stat;
        if (.IsOpen) stat = "Open";
        else stat = "Close";
        string br = Convert.ToString(.BaudRate);
        string dts = Convert.ToString(.DtrEnable);
        string com = Convert.ToString(.PortName);
        string par = Convert.ToString(.Parity);
        string dat = Convert.ToString(.DataBits);
        string rts = Convert.ToString(.RtsEnable);
        string stop = Convert.ToString(.StopBits);
        string text = string.Format("Status: {0}\nPort: {1}\nBaud rate: {2}\nData bits: {3}\nParity: {4}\nStop bits: {5}\nDTS: {6}\nRTS {7}", stat, com, br, dat, par, stop, dts, rts);
        MessageBox.Show(text);
    }

    private void checkRTS_CheckedChanged(object sender, EventArgs e)
    {
        if (checkRTS.Checked) .RtsEnable = true;
        else .RtsEnable = false;
    }

    private void boxpar_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (boxpar.SelectedItem == "Even") .Parity = System.IO.Ports.Parity.Even;
        if (boxpar.SelectedItem == "Mark") .Parity = System.IO.Ports.Parity.Mark;
        if (boxpar.SelectedItem == "None") .Parity = System.IO.Ports.Parity.None;
        if (boxpar.SelectedItem == "Odd") .Parity = System.IO.Ports.Parity.Odd;
        if (boxpar.SelectedItem == "Space") .Parity = System.IO.Ports.Parity.Space;
    }

    private void boxdata_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (boxdata.SelectedIndex == -1) MessageBox.Show("Data bits are not selected", "Warning");
        else
        {
            int bdata = Convert.ToInt32(boxdata.SelectedItem);
            .DataBits = bdata;
        }
    }

    private void boxstop_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (boxstop.SelectedItem == "1") .StopBits = System.IO.Ports.StopBits.One;
        if (boxstop.SelectedItem == "1.5") .StopBits = System.IO.Ports.StopBits.OnePointFive;
        if (boxstop.SelectedItem == "2") .StopBits = System.IO.Ports.StopBits.Two;
    }

    private void button2_Click(object sender, EventArgs e)
    {
        try
        {
            if (!.IsOpen) .Open();
        }
        catch
        {
            MessageBox.Show("Invalid port parameters");
        }
    }

    private void button3_Click(object sender, EventArgs e)
    {
        if (.IsOpen) .Close(); 
    }  


}
}

Answer 1

如果你想在你的整个应用程序中有一个SerialPort，你可以使用类型为static的静态属性创建一个SerialPort类。

public static class SerialPortCommunicator
{
   private static SerialPort _serialPort=new SerialPort();

   public static SerialPort SerialPort
    {
        get { return _serialPort; }
        set { _serialPort = value; }
    }
}

现在，您可以从项目中的任何位置更改其属性的值。

 public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_InForm1_Click(object sender, EventArgs e)
        {
            SerialPortCommunicator.SerialPort.DtrEnable = true;
            // Manipulate every other properties here (inside this from)
        }
    }



public partial class Form2 : Form
{
    public Form2()
    {
        InitializeComponent();
    }

    private void button1_InFrom2_Click(object sender, EventArgs e)
    {
        SerialPortCommunicator.SerialPort.BaudRate = 4900;
        // Manipulate every other properties here(inside this form as well)
    }
}