I have ASP.NET application.
The client (aspx) is analyzing financial data in order to make some very important decission.
It's very important to see always fresh data.
The point it that while long work client the data may be changed.
In our application clent can know it when he is saving data (post back event)
Application checks client data and data in Cash and says to client , that desiccation could be wrong , cause base data were changed.
Application Cash is refreshed automatically by running WCF.
Is there some way to let all WEB clients know that data are refreshed before they cal server ?