this.gridGroupingControl1.SourceListRecordChanged += new Syncfusion.Grouping.RecordChangedEventHandler(gridGroupingControl1_SourceListRecordChanged);
void gridGroupingControl1_SourceListRecordChanged(object sender, Syncfusion.Grouping.RecordChangedEventArgs e)
{
e.Record.SetCurrent(gridGroupingControl1.TableDescriptor.VisibleColumns[0].Name);
}