Hi Ronnie,
You can turn ON/OFF the column header by using the ShowColumnHeaders property.
//For top level table...(main table);
this.gridGroupingControl1.TopLevelGroupOptions.ShowColumnHeaders = true;
//For group of nested table...
gridGroupingControl1.NestedTableGroupOptions.ShowColumnHeaders = false; //Hide the column header
//For all inner groups column header.
this.groupingGrid1.ChildGroupOptions.ShowColumnHeaders = false;
Also refer to Essential Grid Evalution center for more details.
http://www.syncfusion.com/support/evalcenter/default.aspx?cNode=5Best regards,
Haneef