While writing simple applications without ever accessing data from a backend data store is certainly possible, most applications will, at some point, need to do so. Fortunately, the .NET Framework provides a rich set of classes designed to simplify the process of reading and writing data to both SQL Server and other backend data stores. These classes are collectively referred to as ADO.NET.
This chapter provides an overview of ADO.NET and the various tasks it
facilitates -- from reading data with the
SqlDataReader class to updating data with the
classes. The chapter also discusses reading from and writing to XML
files and provides examples of binding retrieved data to ASP.NET