Hello Prava kafle,
You can not attach an event handler specifically for an item. Instead, you can create a single event handler (handling the ClientItemClicked event of the RadPanelBar) and inside of it determine which element is currently clicked.
Here is a nice little reference how to create the handler: http://www.telerik.com/help/aspnet-ajax/panel_panelbar_onclientitemclicked.html
Hope this is helpful for you!
the Telerik team
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