Hi Ramana,
Thank you for your interest in Syncfusion products.
If you don't want to show the column in GridGroupingControl, then please try using TableDescriptor.VisibleColumnCollection in GridGroupingControl to achieve your requirement.
Refer the code below:
this.gridGroupingControl1.DataSource = GetTableDetails();
this.gridGroupingControl1.TableDescriptor.VisibleColumns.Remove("Cost");
Please let me know if you have any queries.
http://files.syncfusion.com/support/samples/Grid.Windows/7.3.0.20/Forums/GGCColumnRemove.zipPlease let me know if you have any queries.
Regards,
Lingaraj S.