public PdfGrid RenderingGroupHeader(Document pdfDoc, PdfWriter pdfWriter, IList<CellData> newGroupInfo, IList<SummaryCellData> summaryData)
{
var groupHeaderHtml = AddGroupHeader(new HeaderData
{
NewGroupInfo = newGroupInfo,
PdfDoc = pdfDoc,
PdfWriter = pdfWriter,
SummaryData = summaryData
});
return createTable(groupHeaderHtml, GroupHeaderProperties);
}