Considering the current session time out you can use a timer, so that on a regular basis, a modal RadWindow will popup with a button which let you perform a callback/an ajax request that in turn will reset the session. The following resources may be helpful in achieving this scenario:
- Window - Modal Popup
- How to configure a modal RadWindow
- Window - Return Values from a Dialog
- Shows how to make a communication between RadWindows.
- Window - Confirm Dialog Integration -
Illustrates how to perform a postback from a RadWindow.
You may also find useful Notification - Session Timeout notification
online demo that illustrates how to show a notification with RadNotification control to inform the user that his session is about to expire and to let him continue it if he wants.
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