Chapter 7. ADO.NET

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ActiveX Data Objects for the .NET Framework (ADO.NET) is a set of classes that allow data access within the Microsoft .NET Framework. It provides a rich set of APIs that let you manage data access for all types of components in a wide variety of situations. For example, XML sits at the heart of ADO.NET, so it allows simple transfer of data between an application and a Web service, and ADO.NET adopts a disconnected model that is ideally suited for data access when connectivity is unreliable, such as when you're accessing data across the Web.

Throughout the rest of this book we'll work with ADO.NET, so you'll be introduced to many new concepts as we go. This chapter provides the foundation you'll need for later chapters, and it will also enable you to start coding against ADO.NET immediately. You'll learn about the ADO.NET architecture, methods of data retrieval, how to manage transactions, and how to work with XML in ADO.NET.

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