Hello, Abins,
You can prevent the current tab from being changed but also detect when a specific tab is clicked. For this purpose you can handle the RadRibbonBar.
CommandTabSelecting and cancel it when the clicked tab is the desired one Then, execute the desired logic.
I hope this information helps. If you need any further assistance please don't hesitate to contact me.
Regards,
Dess | Tech Support Engineer, Sr.
Progress Telerik
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