AAArulraj A Syncfusion Team November 26, 2018 11:49 PM
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.