public List<GenericIdName> GetProducts()
{
    return ListFetcher<GenericIdName>("select * from products", dr => new GenericIdName { Id = GetGuid(dr, "id"), Name = GetString(dr, "product_name") });
}
public delegate TResult Func<T, TResult>(T t);
private List<T> ListFetcher<T>(string Query, Func<MySqlDataReader, T> param)
{
    using (MySqlConnection conn = new MySqlConnection(_connectionString))
    {
        conn.Open();
        MySqlCommand c = conn.CreateCommand();
        c.CommandText = Query;
        List<T> retval = new List<T>();
        using (MySqlDataReader dr = c.ExecuteReader())
        {
            while (dr.Read())
            {
                retval.Add(param(dr));
            }
        }
        return retval;
    }
}