Classic RadTreeView: No click event with ExpandMode="ServerSideCallBack"

Hello Tonino,

Thank you for contacting Telerik Support.

I am afraid the classic RadTreeView is no longer supported. It is very old and many of the features and improvements added to the RadTreeView for ASP.NET AJAX are not available to it. We strongly recommend upgrading to the latest version of the controls and using the much improved version of the RadTreeView that comes with them.

Feel free to contact us again if you have more questions.

Regards,
Ivan Danchev
Telerik