taking a simple example,your application is handling not only DELETE the existing record, at the same time, it INSERT multiple records after the DELETION in SINGLE method you code in Controller Class.
Imagine your create a simple survey form which consist of a checkboxlist which allow the visitor do a simple survey. (they can check one or more multiple checkboxes, so we need to create a method to LOOP in the insertion method)
This is the Controller Class.
DataProvider.CS
SqlDataProvider.CS
