Hi,
Thank you for your interest in Syncfusion products.
Also please try using Enable and ShowButtons property in GridTableCellStyleInfo to achieve your requirement as shown below.
this.gridGroupingControl1.TableDescriptor.AllowEdit = false;
this.gridGroupingControl1.TableDescriptor.AllowNew = false;
this.gridGroupingControl1.TableDescriptor.Appearance.AnyRecordFieldCell.ShowButtons = Syncfusion.Windows.Forms.Grid.GridShowButtons.Hide;
this.gridGroupingControl1.TableDescriptor.Appearance.AnyRecordFieldCell.Enabled = false;
Refer the sample from below link.
http://www.syncfusion.com/uploads/redirect.aspx?&team=support&file=GGCControl-1258715323.zipPlease let me know if you have any queries.
Regards,
Lingaraj S.