使用C＃设置HSSFWork工作表中特定单元格的背景颜色

我正在尝试使用HSSFWorkbook生成一个Excel工作表。 我想设置一个单元格的背景颜色。 我正在使用HSSFWorkbook ，但不幸的是无法获得背景颜色。

我需要设置一些单元格到相同的颜色和一些其他单元格不止一种颜色。

我的代码到目前为止：

 HSSFWorkbook workbook = new HSSFWorkbook(); MemoryStream memoryStream = new MemoryStream(); DataSet repds = exceldetils.ToDataSet("Batch"); HSSFSheet sheets = (NPOI.HSSF.UserModel.HSSFSheet)workbook.CreateSheet("Batch"); HSSFRow headerRow = (NPOI.HSSF.UserModel.HSSFRow)sheets.CreateRow(0); // List<string> columnnames = new List<string>(); foreach (DataColumn column in repds.Tables[0].Columns) { //column.ColumnName = HSSFFont.FONT_ARIAL; // columnnames.Add(column.ColumnName); headerRow.CreateCell(column.Ordinal).SetCellValue(column.ColumnName); } var cHelp = workbook.GetCreationHelper(); HSSFFont hFont = (HSSFFont)workbook.CreateFont(); hFont.Boldweight = (short)FontBoldWeight.Bold; hFont.Color = HSSFColor.Black.Index; hFont.FontHeightInPoints = 10 ; HSSFCellStyle hs = workbook.CreateCellStyle(); HSSFCellStyle hStyle =(HSSFCellStyle) workbook.CreateCellStyle(); hStyle.SetFont(hFont); hStyle.BorderBottom = BorderStyle.Medium; hStyle.FillBackgroundColor = HSSFColor.Black.Index; hStyle.FillPattern = FillPattern.SolidForeground; int cellCount = 0; foreach (string str in columnnames) { HSSFCell cell = (HSSFCell)headerRow.CreateCell(cellCount); cell.SetCellValue(cHelp.CreateRichTextString((str))); cell.CellStyle = hStyle; cellCount += 1; } int rowIndex = 1; foreach (DataRow row1 in repds.Tables[0].Rows) { HSSFRow dataRow = (NPOI.HSSF.UserModel.HSSFRow)sheets.CreateRow(rowIndex); foreach (DataColumn column in repds.Tables[0].Columns) { dataRow.CreateCell(column.Ordinal).SetCellValue(row1[column].ToString()); } rowIndex++; } workbook.Write(memoryStream); //memoryStream.Flush(); //memoryStream.GetBuffer();