title: How do I broadcast an EventCallback to multiple listeners in Blazor WASM?
body: <p>Conceptually, I am having difficulty finding out how to broadcast an event to multiple components. It seems that the EventCallback property can only be set to one method. Basically, I have a service that runs a method based on window events, and I want multiple different components to be able to &quot;subscribe&quot; to this change.</p>
  <p>Even a pointer towards documentation on how to accomplish this would be greatly appreciated</p>