How to get group records while right click on Group Caption in WinForms DataGrid (SfDataGrid)?

private void SfDataGrid_CellClick(object sender, Syncfusion.WinForms.DataGrid.Events.CellClickEventArgs e)
{
            //check Right Click on Group Caption in SfDataGrid
            if (e.MouseEventArgs.Button == MouseButtons.Right && (e.DataRow.RowType == RowType.CaptionCoveredRow || e.DataRow.RowType == RowType.CaptionRow))
            {
                //get the Grouped items
                var groupRecords = (e.DataRow.RowData as Group).Records.ToList();
                txtDisplayRecords.Text = "OrderID\tCustomerID\tCustomerName\tCountry\tShipCity\tIsShipped\t\n";
                //itterate items in that group 
                foreach (var record in groupRecords)
                {
                    //here customize based on your scenario
                    if (!record.IsRecords)
                        return;
 
                    //get the RowData of Grouped item one by one and type cast with underline business object
                    var dataRow = (record as RecordEntry).Data as OrderInfo;
 
                    txtDisplayRecords.Text += dataRow.OrderID + "\t" + dataRow.CustomerID + "\t\t" + dataRow.CustomerName + "\t" + dataRow.Country + "\t" + dataRow.ShipCity + "\t" + dataRow.IsShipped + "\t\n";
                }
            }
}