Dataset / Datatable issue

Question

Hi!

I'm using a dataset to store a datatable filled from a database. the content of this datatable is pulled out from more than one table (e.g. the datatable has the columns "user_id", "user_name", "user_address", store in the db in tables users and addresses, using a select - join statement). After editing the records in a gridview, i need to save each modification to it's database table. This can't be done just via the usual dataset.update() operation, so do you have any ideea how should i proceed?

Thanks!