vs关联mysql数据库

using System;
using System.Data;
using MySql.Data.MySqlClient;

class Program
{
    static void Main()
    {
        string connectionString = "Server=localhost;Database=mydatabase;Uid=myusername;Pwd=mypassword;";
        using (MySqlConnection connection = new MySqlConnection(connectionString))
        {
            try
            {
                connection.Open();
                string query = "SELECT * FROM mytable";
                using (MySqlDataAdapter adapter = new MySqlDataAdapter(query, connection))
                {
                    DataTable table = new DataTable();
                    adapter.Fill(table);
                    foreach (DataRow row in table.Rows)
                    {
                        Console.WriteLine(row["columnName"]);
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine("Error: " + ex.Message);
            }
        }
    }
}