I have a method in a business object where need to get data from serveral tables into DataSets and process the results and then insert various records into the table for that business object.

I'm unclear on using GetDataSet() and FillDataSet() for getting those DataSets.

- I'm pretty clear that GetDataSet() raises state change events, and I don't need those
- GetDataSet() also looks like it set a DataSet property in the business object

- does FillDataSet() also set the business object's DataSet property? Or simply return a DataSet given a query?

Or do I need to create complex business objects that I use inside other business objects?