如何在表单加载时从数据库获取要更新的datagridview？

private void Form_Load(object sender, EventArgs e)
{
    // 建立与数据库的连接，这里使用ADO.NET示例
    using (SqlConnection connection = new SqlConnection("数据库连接字符串"))
    {
        connection.Open();

        // 查询需要更新的数据
        string query = "SELECT * FROM 表名";
        SqlCommand command = new SqlCommand(query, connection);
        SqlDataAdapter adapter = new SqlDataAdapter(command);
        DataTable dataTable = new DataTable();
        adapter.Fill(dataTable);

        // 将数据绑定到DataGridView
        dataGridView.DataSource = dataTable;
    }
}