ADO.NET DataExtender also provides a facility to create strongly typed view set definitions that are global for your project. Such a definition resides as a project level item and can be reused in multiple forms of your application. This feature is called typed DataViewSet and, compared to a locally defined DataViewSet, has the following benefits:

• Allows defining a view set structure in a single centralized place and the ability to reuse it in multiple places of your application. Being defined in a .dll, it can be reused in multiple applications.
• In addition to the view set structure, you can create event handler code for views and view set itself that will be a part of the view set definition, that is will be reusable as well.
• Provides a strongly typed object model for a convenient and safe access to a view set data in a code.

  For example, the following VB code retrieves current Employee's name as a string from untyped view set:

  CType(northWindViewSet.Views("Employees").Current("FirstName"), String)

  The following VB code represents a typed view set:

  northWindViewSet.EmployeesView.Current.FirstName

  Taking into account the fact that during typing the code for the untyped view set you must type view and column names manually, whereas for typed view set you will have a full IntelliSense support, you may realize that programming against the typed view set is far more productive.