在datagridview C#中显示数据

using System;
using System.Data;
using System.Windows.Forms;
using MySql.Data.MySqlClient;

namespace DataGridViewDemo
{
    public partial class Form1 : Form
    {
        private MySqlConnection connection;
        private DataTable dataTable;

        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            string connectionString = "server=<hostname>;port=<port>;user=<username>;password=<password>;database=<database>";
            connection = new MySqlConnection(connectionString);
            dataTable = new DataTable();

            try
            {
                connection.Open();
                string query = "SELECT * FROM <table>";
                MySqlCommand command = new MySqlCommand(query, connection);
                MySqlDataAdapter adapter = new MySqlDataAdapter(command);
                adapter.Fill(dataTable);

                dataGridView.DataSource = dataTable;
            }
            catch (Exception ex)
            {
                MessageBox.Show("Error: " + ex.Message);
            }
            finally
            {
                connection.Close();
            }
        }
    }
}