NopI 导出数据

   protected void exportAward(DataSet dsResult)
    {
        if (dsResult != null)
        {
            string fileName = System.Web.HttpUtility.UrlEncode("任务列表", System.Text.Encoding.UTF8) + ".xls";//excel 名称
            ExportDataSetToExcel(dsResult, fileName, "writered");
        }

    }

　　

 /// <summary>
    /// 
    /// </summary>
    /// <param name="sourceDs">导出数据源</param>
    /// <param name="fileName">excel名称</param>
    /// <param name="sheetName">工作表名</param>
    public void ExportDataSetToExcel(DataSet sourceDs, string fileName, string sheetName)
    {
        MemoryStream ms = DataSetToExcel(sourceDs, sheetName) as MemoryStream;//创建内存流
        HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
        HttpContext.Current.Response.BinaryWrite(ms.ToArray());
        HttpContext.Current.Response.End();
        ms.Close();
        ms = null;
    }

　　

    public Stream DataSetToExcel(DataSet sourceDs, string sheetName)
    {

        HSSFWorkbook workbook = new HSSFWorkbook();
        MemoryStream ms = new MemoryStream(); //创建内存流
        string[] sheetNames = sheetName.Split(',');
        for (int i = 0; i < sheetNames.Length; i++)
        {
            HSSFSheet sheet = (HSSFSheet)workbook.CreateSheet(sheetNames[i]);

            HSSFRow headerRow = (HSSFRow)sheet.CreateRow(0);

            //表头

            headerRow.CreateCell(0).SetCellValue("序号");
            headerRow.CreateCell(1).SetCellValue("任务标题");
            headerRow.CreateCell(2).SetCellValue("发布人");
            headerRow.CreateCell(3).SetCellValue("发布时间");
            headerRow.CreateCell(4).SetCellValue("参阅人");
            headerRow.CreateCell(5).SetCellValue("接收范围");
            headerRow.CreateCell(6).SetCellValue("任务时间");
            headerRow.CreateCell(7).SetCellValue("任务状态");

            //填充表格
            int rowIndex = 1;
            for (int j = 0; j < sourceDs.Tables[0].Rows.Count; j++)
            {
                HSSFRow dataRow = (HSSFRow)sheet.CreateRow(rowIndex);
                //for (int a = 0; a < sourceDs.Tables[0].Columns.Count; a++)
                //{
                dataRow.CreateCell(0).SetCellValue(sourceDs.Tables[0].Rows[j]["Row"].ToString());
                dataRow.CreateCell(1).SetCellValue(sourceDs.Tables[0].Rows[j]["F_Title"].ToString());
                dataRow.CreateCell(2).SetCellValue(sourceDs.Tables[0].Rows[j]["F_teaName"].ToString());
                dataRow.CreateCell(3).SetCellValue(sourceDs.Tables[0].Rows[j]["F_CreatedDate"].ToString());
                dataRow.CreateCell(4).SetCellValue(sourceDs.Tables[0].Rows[j]["F_SeePeopleName"].ToString());
                dataRow.CreateCell(5).SetCellValue(sourceDs.Tables[0].Rows[j]["F_SchoolnameRange"].ToString());
                dataRow.CreateCell(6).SetCellValue(Convert.ToDateTime(sourceDs.Tables[0].Rows[j]["F_StartTime"]).ToString("yyyy-MM-dd HH:mm") + "~" + Convert.ToDateTime(sourceDs.Tables[0].Rows[j]["F_EndTime"]).ToString("yyyy-MM-dd HH:mm"));
                dataRow.CreateCell(7).SetCellValue(sourceDs.Tables[0].Rows[j]["taskfalg"].ToString());
                //}
                rowIndex++;
            }
        }
        workbook.Write(ms);
        ms.Flush();
        ms.Position = 0;
        workbook = null;
        return ms;
    }