using MySql.Data.MySqlClient;

namespace MySqlSSL
{
    class Program
    {
        static void Main(string[] args) {
            string connStr = "Server=localhost;Port=3307;Database=demo;Uid=root;Pwd=etlboxpassword;SSLMode=None";
            MySqlConnection conn = new MySqlConnection(connStr);
            conn.Open();
            string sql = $@"SELECT SCHEMA_NAME FROM `information_schema`.`SCHEMATA` ";
            MySqlCommand cmd = new MySqlCommand(sql, conn);

            var reader = cmd.ExecuteReader();
                //Exception is thrown:
                //System.NotSupportedException: 'Character set 'utf8mb3' is not supported by .Net Framework.'    
                while (reader.Read()) {
                    var name = reader.GetString(0);
                }
            reader.Close();            
            conn.Close();
        }
      
    }
}