Hello,

I have an NTIER Model written in VB.NET, at the moment is running as a
client / server. Pushing a pulling data from the client to the server is
fine and is done via webservice calls. But how do I go about a call from the
server to the clients ?

An example would be that the clients are using a disconnected  dataset and
need to be informed that the dataset has been altered and needs refreshing.

An easy answer would be to have the client refersh at given intervals or
manually when the client desires, but this isnt ideal. Ideally it would be
update when new data hits the sevrer, a more automated approach.

Thanks for reading ...

WebServices is 1-way... it's not intended to push data (or maintain state)
about a client.

You're looking at using Remoting instead. Perhaps singleton remoting with
bi-directional communications.

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