6 Tips of Separation: Listing 1.

Asynchronous calls to a WCF service.

public void LoadById(int id)
{
  // Create an instance of the service proxy
  var client = new PersonService.PersonServiceClient();
  // Subscribe to the "completed" event for the service method
  client.LoadByIdCompleted += 
    new EventHandler<PersonService.LoadByIdCompletedEventArgs>(
           client_LoadByIdCompleted);
  // Call the service method
  client.LoadByIdAsync(id);
}

void client_LoadByIdCompleted(object sender, 
    PersonService.LoadByIdCompletedEventArgs e)
{
  // This method is called after the call to LoadByIdAsync() is finished
  PersonService.PersonDtopersonReturnedByService = e.Result;
  // ...
}

About the Author

Benjamin Day is a consultant, trainer, and author specializing in software development, project management, and leadership. Ben’s main areas of emphasis include Azure DevOps, C#, Angular, Scrum, software testing, and software architecture. He is a Microsoft MVP, a certified Scrum trainer via Scrum.org, and speaks regularly at VSLive. His online courses are available at YouTube and at http://www.pluralsight.com. Ben is also the founder of https://SlideSpeaker.ai. He can be contacted via http://www.benday.com.

comments powered by Disqus

Featured

  • Poisson Regression Using C#

    Dr. James McCaffrey from Microsoft Research presents a complete end-to-end demo of Poisson regression, where the goal is to predict a count of things arriving, such as the number of telephone calls received in a 10-minute interval at a call center. When your source data is close to mathematically Poisson distributed, Poisson regression is simple and effective.

  • Cloud-Focused .NET Aspire 9.1 Released

    Along with .NET 10 Preview 1, Microsoft released.NET Aspire 9.1, the latest update to its opinionated, cloud-ready stack for building resilient, observable, and configurable cloud-native applications with .NET.

  • Microsoft Ships First .NET 10 Preview

    Microsoft shipped .NET 10 Preview 1, introducing a raft of improvements and fixes across performance, libraries, and the developer experience.

  • C# Dev Kit Previews .NET Aspire Orchestration

    Microsoft's dev team has been busy updating the C# Dev Kit, a Visual Studio Code extension that enhances the C# development experience by providing tools for managing, debugging, and editing C# projects.

  • Hands On: New VS Code Insiders Build Creates Web Page from Image in Seconds

    New Vision support with GitHub Copilot in the latest Visual Studio Code Insiders build takes a user-supplied mockup image and creates a web page from it in seconds, handling all the HTML and CSS.

Subscribe on YouTube

Upcoming Training Events