Hi Ranjan,
Thanks for using Syncfusion products,
We regret to let you know that currently we don’t have
support for changing the order of tab items in designer time. But alternately
we can change order of tab items by changing the order of code generated in
Windows forms Designer. We have prepared a sample for your
reference and it is attached below.
Please let us know if you need further assistance,
Regards,
R.Senthil kumaran
Attachment:
RibbonControlAdvTab_61a1fb78.zip