Hi,
Thank you for your interest in Syncfusion products.
For your reference we have created a sample regarding the binding of the data in the griddatacontrol with the groupdrop area.
Please download the sample from the below link.
http://www.syncfusion.com/uploads/redirect.aspx?file=GCD-Binding_354d4071.zip&team=developmentLet us know if you need any other details.
Regards
Jeraldes J