What would be the best way to assign a dataset to the same grid at run time?

I have several datasets that should be displayed in the same grid at run time.
Given the fact that the datasets are different in every way, I will need to create the columns specific for each dataset at run-time.

With the new ewb2 grid how do I accomplish this (iterate and free TGridColumn then Create manually)?

Alternatively - Create and free the TGrid entirely and assign dataset?

Best regards
Petter