private static void test() {
			MySqlConnection cn = new MySqlConnection("Database=mysql;Data" & _
  "Source=localhost;User Id=xx;Password=yy");
			ArrayList databases = new ArrayList();
			MySqlDataReader reader = null;
			try {
				cn.Open();
				reader = new MySqlCommand ("SHOW DATABASES;", cn).ExecuteReader();
				while (reader.Read()) {
					databases.Add (reader.GetString (0));
				}
				reader.Close();
				foreach (string db in databases)  {
					Console.WriteLine(" = > found database: " + db);
					reader = new MySqlCommand ("USE " + db + "; SHOW TABLES;", _
  cn).ExecuteReader();
					while (reader.Read()) {
						Console.WriteLine(" === > found table: " + reader.GetString (0));
					}
					Console.WriteLine();
					reader.Close();
				}
			} catch (MySqlException ex) {
				System.Console.WriteLine (ex.ToString());
			} finally {
				cn.Close();
			}
		}