SDSandhya D Syncfusion Team October 21, 2013 07:24 AM UTC
Thanks for your interest in syncfusion products.
We regret for the inconvenience caused. We are unable to reproduce the issue in our end.We request you to check whether you have set Localize="en-US" in your aspx.cs and do check whether your resource file "GridGrouping.en-US.resx" is named correctly.
We have created a video demonstration,So could you please try to reproduce the issue in our sample and send us back or send your sample so that we can provide you a better solution?