PdfRpt.Export.ExportToExcel.setGroups C# (CSharp) Method

        private void setGroups(bool isNewGroupStarted)
        {
            if (isNewGroupStarted)
            {
                _worksheet.Row(_row).OutlineLevel = 0;
                _outlineLevel = 1;
                _worksheet.OutLineSummaryBelow = false;
            }
            else if (_outlineLevel != -1)
            {
                _worksheet.Row(_row).OutlineLevel = _outlineLevel;
                _worksheet.OutLineSummaryBelow = false;
            }
        }