If you want to show one control from different buttons you have two options:
and its client-side API - the show()
- use its server-side Show() method if you need the postback. You do not need to include the control in the partial page update in order to show it with this method: http://demos.telerik.com/aspnet-ajax/notification/examples/servershowwithnewtext/defaultcs.aspx
I also strongly advise that you examine the demo's code to see how it is implemented. It utilizes several RadNotification controls that show automatically upon preset intervals. There is also some client-side code that checks whether they are visible in order to move the next one up the screen.
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