Yes, you understanding of the client side events is correct. Currently, we don't have plans to change the existing implementation of this. Note, that the second argument of your client side handlers carries data about the item so the current implementation should not pose any limitations for RadMenu related to its client-side capability. For example, consider OnClientItemClicking
item = eventArgs.get_item();
navigateUrl = item.get_navigateUrl();
(navigateUrl && navigateUrl !=
proceed = confirm(
"Navigate to "
+ navigateUrl +
Feel free to contact us if you have further questions.
the Telerik team
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