Hi Gopi,
I am afraid, I was not able to reproduce the issue which you havementioned here.
Could you please provide me the elobarate details on this issue and mention the Syncfusion and .NET versions for further analysis?
If possible, please modify the attached sample which I have used for testing the issue. It will help us to investigate the issue accurately.
Thanks for choosing Syncfsuion products.
Regards,
Malarvizhi.
Dock_usercontrol.zip