Micosoft Dependency Injection service extensions with ReflectionEventing, which promotes better Inversion of Control (IoC), reducing coupling and enhancing the modularity and flexibility of your applications.
Created with ❤ in Poland by lepo.co
ReflectionEventing is a powerful tool for developers looking to create decoupled designs in WPF, WinForms, or CLI applications. By leveraging the power of Dependency Injection (DI) and eventing, ReflectionEventing promotes better Inversion of Control (IoC), reducing coupling and enhancing the modularity and flexibility of your applications.
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To ensure you receive the expert guidance you need, we offer a variety of support plans designed to meet the diverse needs of our community. Whether you are looking to in memory eventing or need assistance with our other libraries, our tailored support solutions are here to help. From priority email support to 24/7 dedicated assistance, we provide flexible plans to suit your project requirements.
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In this step, we register our ViewModel as a singleton and add it as a consumer to the event bus. This allows the ViewModel to listen for events published on the bus.
By default, when multiple consumers are registered for the same event, they are executed in parallel. You can configure the execution mode to be sequential if you need consumers to execute one at a time in order:
ProcessingMode.Parallel (default) - Consumers execute concurrently using Task.WhenAll
ProcessingMode.Sequential - Consumers execute one at a time in registration order
Use sequential mode when:
Order of execution matters for your business logic
Consumers modify shared state that should not be accessed concurrently
You need predictable execution flow for testing or debugging
2. Publish Events
Here, we create a background service that publishes an event on the event bus. This event could be anything - in this case, we're publishing a BackgroundTicked event.
public class MyBackgroundService(IEventBus eventBus)
{
public void PublishEvent()
{
eventBus.Publish(new BackgroundTicked());
}
}
3. Listen for Events
Finally, we implement the IConsumer<T> interface in our ViewModel. This allows the ViewModel to consume BackgroundTicked events. When a BackgroundTicked event is published, the ConsumeAsync method is called, and we update the CurrentTick property.
public partial class MainWindowViewModel : ObservableObject, IConsumer<BackgroundTicked>
{
[ObservableProperty]
private int _currentTick = 0;
public ValueTask ConsumeAsync(BackgroundTicked payload, CancellationToken cancellationToken)
{
CurrentTick = payload.Value;
return ValueTask.CompletedTask;
}
}
Special thanks
JetBrains was kind enough to lend a license for the open-source dotUltimate for ReflectionEventing development.
Learn more here:
To build the project, use Visual Studio 2022 and open the .sln file.
Visual Studio ReflectionEventing is an Open Source project. You are entitled to download and use the freely available Visual Studio Community Edition to build, run or develop for ReflectionEventing. As per the Visual Studio Community Edition license, this applies regardless of whether you are an individual or a corporate user.
Code of Conduct
This project has adopted the code of conduct defined by the Contributor Covenant to clarify expected behavior in our community.
License
ReflectionEventing is free and open source software licensed under MIT License. You can use it in private and commercial projects.
Keep in mind that you must include a copy of the license in your project.
