There are plenty of ways to do this. Here are 2:
1. You can have an ASP UpatePanel control wrapping your updated contents. You put a Timer control inside the update panel and set its interval to 30 seconds. Every time the timer ticks, the update panel refreshes and you can update the contents inside the update panel from the Timer's server-side Tick event.
2. You can have a RadAjaxManager
again with a timer and your updated container. You can create an AJAX setting where the Timer control updates your container. The rest is the same - define an interval and handle the updates in the Timer's Tick event.
All the best,
the Telerik team
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