How we can ignore empty cell value while reading excelsheet?

public static DataTable GetDataTableFromSpreadsheet(Stream MyExcelStream, bool ReadOnly)
{
    DataTable dt = new DataTable();
    using (SpreadsheetDocument sDoc = SpreadsheetDocument.Open(MyExcelStream, ReadOnly))
    {
        WorkbookPart workbookPart = sDoc.WorkbookPart;
        IEnumerable<Sheet> sheets = sDoc.WorkbookPart.Workbook.GetFirstChild<Sheets>().Elements<Sheet>();
        string relationshipId = sheets.First().Id.Value;
        WorksheetPart worksheetPart = (WorksheetPart)sDoc.WorkbookPart.GetPartById(relationshipId);
        Worksheet workSheet = worksheetPart.Worksheet;
        SheetData sheetData = workSheet.GetFirstChild<SheetData>();
        IEnumerable<Row> rows = sheetData.Descendants<Row>();
        foreach (Cell cell in rows.ElementAt(0))
        {
            dt.Columns.Add(GetCellValue(sDoc, cell));
        }

        foreach (Row row in rows) //this will also include your header row...
        {
            DataRow tempRow = dt.NewRow();

            for (int i = 0; i < row.Descendants<Cell>().Count(); i++)
            {
                if (tempRow[i] == DBNull.Value || String.IsNullOrWhiteSpace(tempRow[i].ToString()))
                {
                    continue;
                }
                else
                {
                    tempRow[i] = GetCellValue(sDoc, row.Descendants<Cell>().ElementAt(i));

                }

            }

            dt.Rows.Add(tempRow);
        }
    }
    dt.Rows.RemoveAt(0);
    return dt;


}