如何在C#的组合框中显示SQL表中的id和name字段

using System;
using System.Data.SqlClient;
using System.Windows.Forms;

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

        private void Form1_Load(object sender, EventArgs e)
        {
            string connectionString = "Data Source=YourServerName;Initial Catalog=YourDatabaseName;Integrated Security=True";
            string query = "SELECT id, name FROM YourTableName";

            using (SqlConnection connection = new SqlConnection(connectionString))
            {
                SqlCommand command = new SqlCommand(query, connection);
                connection.Open();

                SqlDataReader reader = command.ExecuteReader();

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

                    comboBox1.Items.Add(new ComboBoxItem(id, name));
                }

                reader.Close();
            }
        }
    }

    public class ComboBoxItem
    {
        public int Id { get; set; }
        public string Name { get; set; }

        public ComboBoxItem(int id, string name)
        {
            Id = id;
            Name = name;
        }

        public override string ToString()
        {
            return Name;
        }
    }
}