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c# Aspose.Cells 导出Excel表格使用随记

news 2025/7/21 6:56:48

/// <summary>/// 导出Excel表格/// </summary>/// <param name="list">数据集合</param>/// <param name="header">数据表头</param>/// <param name="sumColumn">求和列</param>/// <param name=" title"> 标题</param>/// <returns></returns>public static void ExportExcel(DataTable dt, string[] header, string sumColumn=null, string title = null){//Workbook wb = new Workbook(FileFormatType.Xlsx);Workbook wb = new Workbook();try{Worksheet sheet = wb.Worksheets[0];sheet.Name = "MO上行查询结果";if (dt.Rows.Count <= 0){System.Web.HttpContext.Current.Response.Write("<script>alert('没有检测到需要导出数据!');</script>");return;}// 为单元格添加样式Aspose.Cells.Style style = wb.CreateStyle();//style.HorizontalAlignment = Aspose.Cells.TextAlignmentType.Center;  //设置居中style.Font.Size = 20;//文字大小style.Font.IsBold = true;//粗体style.HorizontalAlignment = TextAlignmentType.Center;//文字居中// 为合计单元格样式Aspose.Cells.Style sumstyle =  wb.CreateStyle();sumstyle.Font.Size = 12;//文字大小sumstyle.Font.IsBold = true;//粗体sumstyle.Font.Color = Color.Red;   //颜色//style.HorizontalAlignment = TextAlignmentType.Center;//文字居中//添加标题int rowIndex = 0;sheet.Cells.SetRowHeight(rowIndex, 40); //设置行高if (title!=null){sheet.Cells[rowIndex, 0].PutValue(title);sheet.Cells[rowIndex, 0].SetStyle(style);sheet.Cells.Merge(0, 0, 1, header.Length); //合并行 Merge(1, 1,1, 5); 第一行 第一列 到 第一行 第 5列  //Merge切记后两位参数不能是 0 rowIndex++;}//添加表头style.Font.Size = 12;//文字大小sheet.Cells.SetRowHeight(rowIndex, 20); //设置行高for (int c = 0; c < header.Length; c++){sheet.Cells[rowIndex, c].PutValue(header[c]);sheet.Cells[rowIndex, c].SetStyle(style);sheet.Cells.SetColumnWidth(c, 20);//设置宽度//设置求和列公试if (sumColumn != null && sumColumn.IndexOf(header[c]) > -1){string sn = sheet.Cells[rowIndex + 1, c].Name;string en = sheet.Cells[rowIndex + dt.Rows.Count, c].Name;sheet.Cells[rowIndex + dt.Rows.Count + 1, c].SetStyle(sumstyle);sheet.Cells[rowIndex + dt.Rows.Count + 1, c].Formula = "=SUM(" + sn + ":" + en + ")"; //设置单元格公式     }}rowIndex++;//添加内容for (int r = 0; r < dt.Rows.Count; r++)//遍历DataTable行{for (int c = 0; c < header.Length; c++) //列只遍历到和表头数量相等的列，其余的列不导出{//自动把数字变量转出后 单元格变为数字类型。try{Convert.ToDecimal(dt.Rows[r][c]);sheet.Cells[r + rowIndex, c].PutValue(Convert.ToDecimal(dt.Rows[r][c])); //要导出数字列是数字类型，必须把添加变量转数字类型。}catch { sheet.Cells[r + rowIndex, c].PutValue(dt.Rows[r][c].ToString()); }}}//输出到Excel  直接输出到浏览器wb.Save(HttpContext.Current.Response, DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xlsx",        ContentDisposition.Attachment, new OoxmlSaveOptions(SaveFormat.Xlsx));//保存成97或2003写法//workbook.Save(HttpContext.Current.Response, “output.xls”, ContentDisposition.Attachment, New XlsSaveOptions(SaveFormat.Excel97To2003))HttpContext.Current.Response.End();  //一定要结束HttpContext.Current.Response// 释放Excel对象Marshal.ReleaseComObject(sheet);Marshal.ReleaseComObject(wb);}catch (Exception e){System.Web.HttpContext.Current.Response.Write("<script>alert('导出异常:" + e.Message + "!');</script>");}}#endregion