C#实现读取USB转串口参数并显示在ComboBox

using System;
using System.IO.Ports;
using System.Windows.Forms;

public partial class MainForm : Form
{
    public MainForm()
    {
        InitializeComponent();
        LoadSerialPortNames();
    }

    private void LoadSerialPortNames()
    {
        comboBoxPorts.Items.Clear();
        string[] portNames = SerialPort.GetPortNames();
        foreach (var portName in portNames)
        {
            comboBoxPorts.Items.Add(portName);
        }
    }

    private void comboBoxPorts_SelectedIndexChanged(object sender, EventArgs e)
    {
        if (comboBoxPorts.SelectedItem != null)
        {
            string selectedPort = comboBoxPorts.SelectedItem.ToString();
            using (SerialPort port = new SerialPort(selectedPort))
            {
                try
                {
                    port.Open();
                    DisplayPortParameters(port);
                }
                catch (Exception ex)
                {
                    MessageBox.Show("Error: " + ex.Message);
                }
            }
        }
    }

    private void DisplayPortParameters(SerialPort port)
    {
        labelBaudRate.Text = "Baud Rate: " + port.BaudRate.ToString();
        labelDataBits.Text = "Data Bits: " + port.DataBits.ToString

();
        labelStopBits.Text = "Stop Bits: " + port.StopBits.ToString();
        labelParity.Text = "Parity: " + port.Parity.ToString();
    }
}

private void InitializeComponent()
{
    this.comboBoxPorts = new System.Windows.Forms.ComboBox();
    this.labelBaudRate = new System.Windows.Forms.Label();
    // ... 其他控件的初始化 ...

    // 
    // comboBoxPorts
    // 
    this.comboBoxPorts.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
    this.comboBoxPorts.FormattingEnabled = true;
    this.comboBoxPorts.Location = new System.Drawing.Point(12, 12);
    this.comboBoxPorts.Name = "comboBoxPorts";
    this.comboBoxPorts.Size = new System.Drawing.Size(121, 21);
    this.comboBoxPorts.TabIndex = 0;
    this.comboBoxPorts.SelectedIndexChanged += new System.EventHandler(this.comboBoxPorts_SelectedIndexChanged);

    // 
    // labelBaudRate
    // 
    this.labelBaudRate.AutoSize = true;
    this.labelBaudRate.Location = new System.Drawing.Point(12, 36);
    this.labelBaudRate.Name = "labelBaudRate";
    this.labelBaudRate.Size = new System.Drawing.Size(68, 13);
    this.labelBaudRate.TabIndex = 1;
    this.labelBaudRate.Text = "Baud Rate:";

    // ... 其他控件的配置 ...
}