Grid for two tables referenced by foreign key

[ss_require]

Hi!
I have two realted tables:
Table A: name; type_id (type_id foreign key to table B.type_id)
Table B: type_id; type_name

I have a Grid where I show table A, but instead of type_id, i would like to have type_name value!

I read this post http://forums.smartclient.com/showthread.php?t=6121&highlight=foreign+key and I have get that this feature is not supported. Is it correct?

What is the workaround?

[Isomorphic]

It's supported, what you found is a totally unrelated post about trees.

See ListGridField.optionDataSource.