Im having hard time to understand the advantages of callback on the basic way of making our client to be a service too and our service to be a client too.
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Im having hard time to understand the advantages of callback on the basic way of making our client to be a service too and our service to be a client too.
I can give you one big advantage. We have an application that involves a client (WPF) and a Windows service. Normally the client calls the service (via WCF) to retrieve and/or save data etc. But, there are times we want the service to send the client a message, to notify the client it needs to perform a certain action (like shutdown or display a message to the user – could be anything). A callback is perfect for this.