SQL AddValue как правильно?

private void query_Click(object sender, RoutedEventArgs e)
        {
            string name1 = name.Text;
            string family1 = family.Text;
            MySqlConnection sql = new MySqlConnection("Database=test;Data Source=localhost;User Id=root;Password=root");
            sql.Open();
            MySqlCommand command = new MySqlCommand("INSERT INTO `list`(`name`,`family`) VALUES('@user','@age')",sql);
            command.Parameters.AddWithValue("@user", name1);
            command.Parameters.AddWithValue("@age", family1);
            command.ExecuteNonQuery();
            sql.Close();
            MessageBox.Show("Удачно");
        }

 VALUES('@user','@age')

MySqlCommand command = new MySqlCommand("INSERT INTO `list`(`name`,`family`) VALUES(@user, @age)",sql);

using (var connection = new MySqlConnection("Database=test;Data Source=localhost;User Id=root;Password=root"))
{
      var command = new MySqlCommand("INSERT INTO `list`(`name`,`family`) VALUES(@user,@age)",connection);
      command.Parameters.AddWithValue("@user", name.Text);
      command.Parameters.AddWithValue("@age", family.Text);
      connection.Open();
      command.ExecuteNonQuery();
}
MessageBox.Show("Удачно");