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Developing and Implementing Windows®-Based Applications with Visual C#™ .NET and Visual Studio® .NET Exam Cram™ 2 (Exam 70-316) by Priti Kalani, Amit Kalani, Kalani Kirk Hausman

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Transforming and Filtering Data

You usually want to present less than the total number of records available to your users, to make your application more user-friendly. If you have a table named Invoices that has a few hundred thousand entries and you need a listing of open invoices only for a particular customer, it would not be good design planning to require users to find the few necessary records. Restricting data returned to the user interface is a process known as filtering. Your database might also record the clientID field for each invoice, and you want to provide the data to your users with a more useful name value. Manipulating output data is a process referred to as transformation.

The Server Explorer

Before we address filtering and ...

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