EventAggregatorRx

Simple EventAggregator class using Rx.

Download

Via NuGet

To install library by using Nuget package manager execute next command:

Install-Package EventAggregatorRx -Version 1.0.0.1

Example

Design events using IEvent interface.

public class ItemAdded : IEvent 
{
  public Guid ItemId {get; set;}
}

Next step, implement your events in the viewModel and subscribe.

public class BasketViewModel : IEventHandler<ItemAdded>
{
  ...
  public BasketViewModel(IEventAggregator event) 
  {
    eventAggregator.Subscribe(this); //subscribing viewmodel
  }
  
  public void Handle(ItemAdded @event)
  {
      //TODO: Any action
  }
}

Next step: Publish the event in another viewmodel.

public class CatalogViewModel
{
    ...
    public CatalogViewModel(IEventAggregator eventAggregator)
    {
        eventAggregator.Publish(new ItemAdded {ItemId = Guid.NewGuid()});
    }
}

Method Extensions

You can use method extensions to simplify

public class CatalogViewModel
{
    ...
    public CatalogViewModel(IEventAggregator eventAggregator)
    {
        eventAggregator.Publish<ItemAdded>(x => ItemId = Guid.NewGuid());
        eventAggregator.Publish<ItemAdded>(); //If the event no has data
    }
}