Hello Alex Ruggeri,
Here is an example that should help you.
The panelbar is bound to an sqlDataSource and we intercept the server-side event OnItemCreated.
Here is the code-behind handler of this event:
Attached is an example (a screenshot) of the output of this handler, right after the page is loaded (the sqlDataSource is connected to the Northwind - MS's sample DB, to table Employees with selected EmployeeID, LastName and ReportsTo columns).
Hope that this will help you!

All the best,
Nikolay Tsenkov
the Telerik team
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