4. Asynchronous Programming | Learning .NET High-Performance Programming

Event-based Asynchronous Pattern (EAP)

The Event-based Asynchronous Pattern (EAP) is a specific design pattern to standardize event-based asynchronous programming features. Such a design is available in multiple classes from .NET itself and is available and suggested in all our implementations if applicable.

Unlike the previously seen APM, in this pattern, any method that supports synchronous execution will add an overloaded method for an asynchronous invocation. The result, instead, will be available only to a specific predefined callback method, one for each available method, within the class itself.

Here is an example showing the WebClient class downloading some web page data:

static void Main(string[] args)
{
    //a simple web client
    var client = new WebClient();

    //register for result callback
    client.DownloadDataCompleted += client_DownloadDataCompleted;

    //invoke asynchronous request
    client.DownloadDataAsync(new Uri("http://www.google.com"));

    Console.WriteLine...

Tech Concepts

Programming languages

Tech Tools

Unlimited access to the largest independent learning library in tech of over 8,000 expert-authored tech books and videos.

Innovative learning tools, including AI book assistants, code context explainers, and text-to-speech.

50+ new titles added per month and exclusive early access to books as they are being written.

Learning .NET High-Performance Programming

By : Antonio Esposito

Learning .NET High-Performance Programming

By: Antonio Esposito

Overview of this book

Event-based Asynchronous Pattern (EAP)

Learning .NET High-Performance Programming

By : Antonio Esposito

Learning .NET High-Performance Programming

By: Antonio Esposito

Overview of this book

Event-based Asynchronous Pattern (EAP)

Confirmation

Buy this book with your credits?

Submit Your Feedback

Create a Free Account To Continue Reading

Sign in to activate your 7-day free access