最近在弄一個導出到Excel的多個sheet的文件，查詢后展示代碼如下：

protected void btnExport_Click(object sender, EventArgs e)
??????? {
??????????? DateTime checkTime = DateTime.Now;
??????????? if (DateTime.TryParse(hdCheckTime.Value, out checkTime))
??????????? {
??????????????? DataSet ds = BusinessFacade.GranaryScoreManager.GetCompanyScoreData(hdSelectCompany.Value, checkTime);
??????????????? Microsoft.Office.Interop.Excel.Application app = null;
??????????????? Workbook wBook = null;
??????????????? string filename = "各分公司" + checkTime.ToString("yyyy年MM月dd日") + "考核匯總";
??????????????? string fullFilePath = Server.MapPath("~/Res/ReportForm/" + filename + Guid.NewGuid().ToString() + ".xls");
??????????????? try
??????????????? {
??????????????????? app = new Microsoft.Office.Interop.Excel.Application();
??????????????????? app.Visible = false;
??????????????????? //設置禁止彈出保存和覆蓋的詢問提示框? ?
??????????????????? app.DisplayAlerts = false;
??????????????????? app.AlertBeforeOverwriting = false;
??????????????????? wBook = app.Workbooks.Add(true);
??????????????????? string s = wBook.Name;// = filename+DateTime.Now.ToString("yyyy年MM月dd HHmmssffff");
??????????????????? Dictionary<string, string> sheetNames = new Dictionary<string, string>();
??????????????????? int shindex = 0;
??????????????????? Worksheet wSheet = null;
??????????????????? var v = ds.Tables[0].AsEnumerable().OrderByDescending(a => int.Parse(a["HSort"].ToString()));
??????????????????? foreach (DataRow dr in v)
??????????????????? {
??????????????????????? string cid = dr["CompanyID"].ToString();
??????????????????????? string cname = dr["CompanyName"].ToString();
??????????????????????? CheckRules rule = CheckRulesManager.GetModel(cid);
??????????????????????? string lastCheckTimeStr = "";
??????????????????????? DateTime lastCheckTime = DateTime.Now;
??????????????????????? if (DateTime.TryParse(dr["CheckTime"].ToString(), out lastCheckTime))
??????????????????????????? lastCheckTimeStr = lastCheckTime.ToString("yyyy年MM月dd日");
??????????????????????? if (shindex == 0)
??????????????????????? {
??????????????????????????? wSheet = wBook.Sheets.get_Item(1);
??????????????????????????? shindex++;
??????????????????????? }
??????????????????????? else
??????????????????????? {
??????????????????????????? wSheet = wBook.Sheets.Add(Missing.Value, Missing.Value, Missing.Value, Missing.Value);
??????????????????????? }
??????????????????????? wSheet.Name = cname + DateTime.Now.ToString("HHmmssffff");
??????????????????????? sheetNames.Add(wSheet.Name, string.IsNullOrWhiteSpace(dr["Alias"].ToString()) ? cname : dr["Alias"].ToString());
??????????????????????? Microsoft.Office.Interop.Excel.Range rg = wSheet.Range["A1:K1"];//.get_Range(wSheet.Cells[rowIndex, 1], wSheet.Cells[rowIndex, 11]);
??????????????????????? rg.Merge(rg.MergeCells);
??????????????????????? rg.Font.Bold = true;
??????????????????????? rg.Font.Size = 14;
??????????????????????? rg.HorizontalAlignment = XlHAlign.xlHAlignCenter;
??????????????????????? Microsoft.Office.Interop.Excel.Range rgColumnTitle = wSheet.Range["A2:K2"];
??????????????????????? rgColumnTitle.Font.Bold = true;
??????????????????????? rgColumnTitle.Font.Size = 12;
??????????????????????? rgColumnTitle.HorizontalAlignment = XlHAlign.xlHAlignCenter;


??????????????????????? int rowIndex = 1;
??????????????????????? wSheet.Cells[rowIndex, 1] = cname + lastCheckTimeStr + "考核匯總";
??????????????????????? rowIndex = 2;
??????????????????????? wSheet.Cells[rowIndex, 1] = "排名";
??????????????????????? wSheet.Cells[rowIndex, 2] = "名稱";
??????????????????????? wSheet.Cells[rowIndex, 3] = "總分" + Environment.NewLine + "（" + (rule.TempComplete + rule.TempExact + rule.InsectComplete + rule.InsectExact + rule.StoreHouseInfo + rule.QualityReport + rule.RotationPlan + rule.LoginCheck) + "分）";
??????????????????????? wSheet.Cells[rowIndex, 4] = "上傳" + Environment.NewLine + "數據完整性" + Environment.NewLine + "（" + rule.TempComplete + "分）";
??????????????????????? wSheet.Cells[rowIndex, 5] = "上傳" + Environment.NewLine + "數據準確性" + Environment.NewLine + "（" + rule.TempExact + "分）";
??????????????????????? wSheet.Cells[rowIndex, 6] = "上傳" + Environment.NewLine + "數據完整性" + Environment.NewLine + "（" + rule.InsectComplete + "分）";
??????????????????????? wSheet.Cells[rowIndex, 7] = "上傳" + Environment.NewLine + "數據準確性" + Environment.NewLine + "（" + rule.InsectExact + "分）";
??????????????????????? wSheet.Cells[rowIndex, 8] = "倉" + Environment.NewLine + "信息" + Environment.NewLine + "（" + rule.StoreHouseInfo + "分）";
??????????????????????? wSheet.Cells[rowIndex, 9] = "檢查" + Environment.NewLine + "報告" + Environment.NewLine + "（" + rule.QualityReport + "分）";
??????????????????????? wSheet.Cells[rowIndex, 10] = "進出" + Environment.NewLine + "計劃" + Environment.NewLine + "（" + rule.RotationPlan + "分）";
??????????????????????? wSheet.Cells[rowIndex, 11] = "自檢" + Environment.NewLine + "登錄" + Environment.NewLine + "（" + rule.LoginCheck + "分）";
??????????????????????? var details = ds.Tables[1].AsEnumerable().Where(a => a["CompanyID"].ToString() == cid);
??????????????????????? foreach (DataRow detail in details)
??????????????????????? {
??????????????????????????? rowIndex++;
??????????????????????????? wSheet.Cells[rowIndex, 1] = detail["Rank"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 2] = detail["GranaryName"].ToString().Trim();
??????????????????????????? wSheet.Cells[rowIndex, 3] = detail["TotalScore"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 4] = detail["TempComplete"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 5] = detail["TempExact"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 6] = detail["InsectComplete"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 7] = detail["InsectExact"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 8] = detail["StoreHouseInfo"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 9] = detail["QualityReport"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 10] = detail["RotationPlan"].ToString();
??????????????????????????? wSheet.Cells[rowIndex, 11] = detail["LoginCheck"].ToString();
??????????????????????? }
??????????????????????? Microsoft.Office.Interop.Excel.Range rg2 = wSheet.Range["A3:A" + rowIndex.ToString()];
??????????????????????? rg2.HorizontalAlignment = XlHAlign.xlHAlignCenter;
??????????????????????? Microsoft.Office.Interop.Excel.Range rgAll = wSheet.Range["A1:K" + rowIndex.ToString()];
??????????????????????? rgAll.EntireColumn.AutoFit();???? //自動調整列寬
??????????????????????? wSheet.Range["c1:c" + rowIndex.ToString()].ColumnWidth = 11;
??????????????????????? wSheet.Range["d1:d" + rowIndex.ToString()].ColumnWidth = 12;
??????????????????????? wSheet.Range["e1:e" + rowIndex.ToString()].ColumnWidth = 12;
??????????????????????? wSheet.Range["f1:f" + rowIndex.ToString()].ColumnWidth = 12;
??????????????????????? wSheet.Range["g1:g" + rowIndex.ToString()].ColumnWidth = 12;
??????????????????????? wSheet.Range["h1:h" + rowIndex.ToString()].ColumnWidth = 9.75;
??????????????????????? wSheet.Range["i1:i" + rowIndex.ToString()].ColumnWidth = 9.75;
??????????????????????? wSheet.Range["j1:j" + rowIndex.ToString()].ColumnWidth = 9.75;
??????????????????????? wSheet.Range["k1:k" + rowIndex.ToString()].ColumnWidth = 9.75;
??????????????????????? rgColumnTitle.WrapText = true;
??????????????????????? //rgAll.Borders.LineStyle = ;
??????????????????????? rgAll.Borders.Weight = 2;
??????????????????????? wSheet.Range["A1:K1"].Borders.Weight = 3;
??????????????????????? wSheet.Range["A1:A" + rowIndex.ToString()].Borders[XlBordersIndex.xlEdgeLeft].Weight = 3;
??????????????????????? wSheet.Range["A" + rowIndex.ToString() + ":K" + rowIndex.ToString()].Borders[XlBordersIndex.xlEdgeBottom].Weight = 3;
??????????????????????? wSheet.Range["K1:K" + rowIndex.ToString()].Borders[XlBordersIndex.xlEdgeRight].Weight = 3;
??????????????????? }
??????????????????? foreach (Worksheet ws in wBook.Sheets)
??????????????????? {
??????????????????????? ws.Name = sheetNames[ws.Name];
??????????????????? }
??????????????????? //保存工作簿? ?
??????????????????? //wBook.Save();
??????????????????? wBook.SaveAs(fullFilePath, XlFileFormat.xlExcel9795, null, null, false, false, XlSaveAsAccessMode.xlNoChange, null, null, null, null, null);// Microsoft?? Excel?? 97-?? Excel?? 2003?? &?? 5.0/95?? 工作簿(.*.xls)
??????????????????? //保存excel文件????????????????????? ?
??????????????????? //app.Save(fullFilePath);
??????????????????? //app.Save();
??????????????????? //app.ActiveWorkbook.SaveAs(fullFilePath, XlFileFormat.xlExcel7, Type.Missing, Type.Missing, Type.Missing, Type.Missing, XlSaveAsAccessMode.xlExclusive, Type.Missing, Type.Missing, Type.Missing, Type.Missing, Type.Missing); ?
??????????????????? //app.SaveWorkspace(fullFilePath);

??????????????? }
??????????????? catch (Exception ex)
??????????????? {
??????????????????? Common.MessageBox.Show(this, "導出過程異常。" + ex.Message);
??????????????? }
??????????????? finally
??????????????? {
??????????????????? if (wBook != null)
??????????????????? {
??????????????????????? wBook.Close(true, fullFilePath, null);
??????????????????????? wBook = null;
??????????????????? }
??????????????????? if (app != null)
??????????????????? {
??????????????????????? app.Quit();
??????????????????????? app = null;
??????????????????? }
??????????????????? System.IO.FileInfo fi = new System.IO.FileInfo(fullFilePath);
??????????????????? if (fi.Exists)
??????????????????? {
??????????????????????? ExportExcelToWebClient(fi, filename + ".xls");
??????????????????????? fi.Delete();
??????????????????????? GC.Collect();
??????????????????????? GC.Collect();
??????????????????????? HttpContext.Current.Response.End();
??????????????????? }

??????????????? }
??????????? }
??????????? else
??????????? {
??????????????? Common.MessageBox.Show(this, "日期格式不正確");
??????????? }
??????? }

??????? public static void ExportExcelToWebClient(System.IO.FileInfo fi, string newFileName)
??????? {
??????????? //清除Response緩存內容
??????????? HttpContext.Current.Response.Clear();
??????????? HttpContext.Current.Response.Buffer = true;
??????????? string UserAgent = HttpContext.Current.Request.ServerVariables["http_user_agent"].ToLower();
??????????? if (UserAgent.IndexOf("firefox") == -1)
??????????????? newFileName = HttpUtility.UrlEncode(newFileName, System.Text.Encoding.UTF8);
??????????? //確定字符的編碼格式
??????????? HttpContext.Current.Response.AppendHeader("Content-Disposition", "attachment;filename=" + newFileName);
??????????? HttpContext.Current.Response.ContentType = "application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword
??????????? HttpContext.Current.Response.Charset = "GB2312";
??????????? HttpContext.Current.Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
??????????? HttpContext.Current.Response.WriteFile(fi.FullName);
??????????? HttpContext.Current.Response.Flush();
????????? ?
??????? }

轉載于:https://www.cnblogs.com/mazhlo/archive/2013/05/30/excel.html

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