>Q1 : The above codes should put it in the form or toolbar init event? If the
I show it in the formset init()...as indicated below:
>>*!* formset init()
BTW, Not everyone (nobody?) recommends actually *using* formsets *shrug*. The quick and dirty answer is (IMHO) in the form init (if you're not using formsets).


>Q2: What do you mean by field1, field2 and field3?
Those are just place holders for your information that you populate the cbo's columns with.