Realtime page updates from codeunit

kevindstanley

Hi,

I have a codeunit that is exposed as a webservice that gets update periodically, but event-driven, it could be every second or sometimes every half hour depending on the time of day.

This is the scenario I have.
-Codeunit updates TableA
-3 users are looking at PageA(that uses data from TableA)
-3 users are looking at stale data

Is there a way for the data that the 3 users are currently looking at update in an event driven fashion, meaning as to not use timers and have the codeunit tell the pages to updates.


Thanks!
Kevin

kevindstanley

here is an update on my research.

Would it be possible to create a dotnet client Add-In that uses Microsoft's new SignalR library to subscribe(listen) to a server for changes, and when there are changes fire the RaiseControlAddInEvent in the Add-In to run some C/AL code (CurrPage.UPDATE) inside of the C/AL's Add-In .

With signalR, every client that is connected receives messages from a 'server' broadcast. I would just write the server to use localhost:port and point all of the clients to that servers ip:port to listen.

I have done some work with signalR in the past, i don't know how well Nav plays with Async dotnet though... or if it would work with this library at all.

If I have time to write up a demo I will post my findings. Let me know if anyone has tried something like this.

ara3n

You don't need signal IR. You can use simple socket and connect to a server. sending and receiving Asynchronously. There is MSDN example available for a server and client.
And yes you can do it through Addin.