Hello Francisso,
Indeed you are right - in this case the edit/insert operation will be processed regardless whether you press the Cancel button or not due to the
specific event sequence when the viewstate of RadGrid is disabled.
The only option I can offer you is to remove the cancel button from the edit/insert form (thus disabling the cancel option) intercepting the
ItemCreated event of the control, namely:
I hope this is feasible for your situation.
Best regards,
Sebastian
the Telerik team