Microsoft® .NET Distributed Applications: Integrating XML Web Services and .NET Remoting

Dissecting a Sample Component

One of the most common services that components are called on to provide is data access. Databases make ideal work for components for several reasons, including the following:

• Databases require extraneous details.

  This information (connection strings, field names, and so on) can complicate application logic. A well-written component encapsulates these details.

• Databases are always in demand.

  A typical application might call a database several times for different pieces of information. Placing this code in a database component ensures that the connection and querying details are handled in a consistent manner rather than copied to every corner of your code.

• Relational databases aren’t object-oriented.

  However, components ...