I think none of the above has to do with the problem of OP.
She was complaining about word wrapping in the view - while populating combo boxes.
Based on the documentation, pure text items should indeed be wrapped by the view its self.

@OP:
Where the text does not get wrapped?
In the combo boxes - or do you have "naked" text items in your table which do not word wrap?
Try populating only strings in to the table - with no combo boxes.
Does the text get wrapped then?

In order to reduce non related other problems as the posters above me mentioned, try working with a small table, 5x5 for example.