Advise/opinion about multiple master table screens

In a project, I have atleast 12 master tables like customers, clients, products, items...etc.

To setup each table should I be using a single screen with datagrid control or I should develop one master table setup screen for each table? In vb6.0 world, I used to develop one form for one master table. Is this the common practice in vb.net world also?

thanks
nath

If all you want to do is update those tables with data or modify/add some fields, then I would use 1 form. One form for each seems to be not needed in my opinion.