AAArulraj A Syncfusion Team November 27, 2018 04:49 AM UTC
Thanks for using Syncfusion products
By default, TableDescriptor.AllowNew property value is set as true. If you set the GridVisualStyles as Office2016ColorFul theme, it will disable the AllowNew property to improve our GridGroupingControl look and feel. So, you need to manually enable the AllowNew property after the GridVisualstyles settings.