Hi Kathy,
Sorry for the delay in responding.
I am afraid that i was not able to reproduce the issue. Also I have created a simple sample to test this issue and it is available in the following link:
http://websamples.syncfusion.com/samples/Tools.Web/6.1.0.34/F-70388/main.htmPlease try the above code and if still tha issue exists,could you please try to reproducing it in the above sample and send us the modified sample so that we could sort out the cause of the issue and provide you a solution?
Regards,
Yavana.G