MySQL remote SSH Connection using .NET C#

Below is a screenshot from MySQL workbench. The parameters are not real, but the structure shown here is exactly as per my real connection which is working nicely.

I am trying to connect to this database using a .NET C# project.

I have downloaded and referenced the project https://sshnet.codeplex.com/

I seem to be having success with actually connecting to the SSH server:

using (SshClient objSSHClient = new SshClient("199.199.199.199", "root", "<the SSH user password>"))
{
    objSSHClient.Connect();
    MessageBox.Show("objSSHClient.IsConnected=" + objSSHClient.IsConnected.ToString());
    objSSHClient.Disconnect();
}

Great. So, now my current understanding is that I need port forwarding setup so I can tunnel my MySQL connection through the SSH client connection.

It all goes badly from here on in. I think I've got either the port forwarding and/or the connection string settings mixed up.

When referencing other similar questions I could't find a situation which seems to have the SSH Hostname as a different value to the MySQL hostname which is the situation I have.

Here's my latest attempt at trying to connect:

using (SshClient objSSHClient = new SshClient("199.199.199.199", "root", "<the SSH user password>"))
{

     ForwardedPortLocal objPortForward = new ForwardedPortLocal("127.0.0.1",3306, "mySQLDatabase.databaseserver.com", 3306);
     objSSHClient.AddForwardedPort(objPortForward);
     objSSHClient.Connect();

     using (MySqlConnection objDBCon = new MySqlConnection())
     {
          objDBCon.ConnectionString = "Server=127.0.0.1;Database=<the database name>;Uid=databaseuser;Pwd=<the database user password>;";
          objDBCon.Open();
     }

     objSSHClient.Disconnect();
 }

Which always fails on the .Open() method... "Unable to connect to any of the specified MySQL hosts."