public MyGroupRowData CreateGroupRowData(RowHandle groupRowHandle)
        {
            MyGroupRowData rowData = new MyGroupRowData(visualDataTreeBuilder);

            UpdateGroupRowData(rowData, groupRowHandle);
            UpdateFixedNoneContentWidth(rowData);
            return(rowData);
        }
 public void UpdateGroupRowData(MyGroupRowData rowData, RowHandle rowHandle)
 {
     rowData.UpdateRowHandle(rowHandle);
     UpdateCellData(rowData);
     rowData.UpdateMyGroupSummaryData();
 }