Hi Lalitha,
Thanks for your interest in Syncfudion Products.
We worked on your reported problem and unable to reproduce It, I have attached the sample under the following link.
Could you please modify the sample to demonstrate the behavior and sent it to us. Please let us know the Syncfusion Version in which you are using the specified control. We would be glad to help you on this.
[Sample Link]
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=Sample-1019914183.zipPlease let us know if you need any other details.
Regards,
Iniyen M.A.