如何将数据从access数据转换到Combobox

using System;
using System.Data.OleDb;
using System.Windows.Forms;

public class MainForm : Form
{
    private ComboBox comboBox;

    public MainForm()
    {
        comboBox = new ComboBox();
        comboBox.Dock = DockStyle.Fill;
        Controls.Add(comboBox);

        LoadData();
    }

    private void LoadData()
    {
        string connectionString = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=C:\\path\\to\\database.accdb";
        string query = "SELECT ID, Name FROM TableName";

        using (OleDbConnection connection = new OleDbConnection(connectionString))
        {
            OleDbCommand command = new OleDbCommand(query, connection);
            connection.Open();

            OleDbDataReader reader = command.ExecuteReader();
            while (reader.Read())
            {
                int id = reader.GetInt32(0);
                string name = reader.GetString(1);

                comboBox.Items.Add(new ListItem(id, name)); // 自定义的ListItem类，用于存储ID和Name
            }

            reader.Close();
        }
    }

    // 其他相关方法和事件处理等...

    // 自定义的ListItem类
    private class ListItem
    {
        public int ID { get; set; }
        public string Name { get; set; }

        public ListItem(int id, string name)
        {
            ID = id;
            Name = name;
        }

        public override string ToString()
        {
            return Name; // ComboBox显示的文本
        }
    }

    // 入口方法
    public static void Main()
    {
        Application.Run(new MainForm());
    }
}