Hi Sushma,
We are sorry for the delay in getting back to you.
We have prepared a sample to show you, how to disable the ContextMenuItems in the Popup of GroupBar control. We can achieve this by using ContextMenuOpening event of GroupBar.
Please find the sample under the following location.
Please let us know if you have any queries.
Thanks,
Deenadhayalan
98713_Forum_4314140e.zip