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Asked: 2026-05-27T01:33:49+00:00

I am implementing an application using Prism. The application has a few distributed components

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I am implementing an application using Prism.
The application has a few distributed components that resides on various machines or servers. In order to communicate them, I am planning to implement messaging service using Event Aggregator. But before I start working on that I would like to have a few clarifications:

  1. Can Event Aggregator be used on a distributed environment. If yes
    than how to define the server or hub where the message would be
    published or subscribed?

  2. What is the performance impact on the applications using Event
    Aggregator? I feel it is negligible but still I would like to know.

  3. Is Event Aggregator approach is good for future expansion in an
    enterprise environment?

Thanks and Regards,

Ashish Sharma

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1 Answer

  1. Editorial Team

    PRISM is client-side technology. So, EventAggregator as it is won’t do what you need. This is mechanism to communicate between modules in a loosely-coupled way. It is not about communicating between different clients.

    For what you need – I would look into HTTP Polling Duplex
    http://www.devproconnections.com/article/silverlight-40/using-http-polling-duplex-in-silverlight-applications

    If you use PRISM on front end – you can write your own service and subscribe/publish EventAggregator events from that service while making server calls and receiving responses back.

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