Beyond Dependency Injection: Listing 3.
Selecting the right IDataFeed.
class DataFeedHandlerSelector : IHandlerSelector
private bool networkAvailable;
// Hook in to network monitoring component
// to set networkAvailable flag.
public bool HasOpinionAbout(string key, Type service)
public IHandler SelectHandler(string key,
Patrick Steele is a senior .NET developer with Billhighway in Troy, Mich. A recognized expert on the Microsoft .NET Framework, he’s a former Microsoft MVP award winner and a presenter at conferences and user group meetings.