C# 导出到Excel

一个DataGrid里有两张表的数据，导出成一张表

 protected void btnExcel_Click(object sender, EventArgs e)

         {

             InfoExport();

         }

 protected void InfoExport()

         {

             try

             {

                 string ExcelName = this.CreateExcel();

                 //将服务器上的Excel导出

                 // CuteWebUIOperate.DownloadFile(HttpContext.Current, Server.MapPath("ExcelExport/") + ExcelName, ExcelName, false);

                 string strScript = "window.open('ExcelExport/" + ExcelName + "');";

                 this.WriteAjaxMessage(strScript);

             }

             catch

             {

                 throw;

             }

         }

 #region 导出excel

         protected string CreateExcel()  //生成Excel

         {

             string Header = "考试题库";

             string strFileName = "";

             // 生成文件夹

             string fileFolderPath = Server.MapPath("ExcelExport/");

             if (!System.IO.Directory.Exists(fileFolderPath))

                 System.IO.Directory.CreateDirectory(fileFolderPath);

             Workbook wb = new Workbook();

             wb.Worksheets.Add("Sheet1");

             Worksheet ws = wb.ActiveWorksheet;

             WorksheetMergedCellsRegionCollection wm = ws.MergedCellsRegions;

             #region

             WorksheetMergedCellsRegion wmc = wm.Add(, , , );//起始位置和终止位置

             wmc.Value = Header;

             wmc.CellFormat.Alignment = HorizontalCellAlignment.Center;

             wmc.CellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             wmc.CellFormat.BottomBorderColor = Color.Black;

             wmc.CellFormat.LeftBorderColor = Color.Black;

             wmc.CellFormat.RightBorderColor = Color.Black;

             wmc.CellFormat.TopBorderColor = Color.Black;

             wmc.CellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.WrapText = ExcelDefaultableBoolean.True;

             wmc.CellFormat.Font.Name = "宋体";

             //字体大小

             wmc.CellFormat.Font.Height = ;

             IWorksheetCellFormat HeadCellFormat = wb.CreateNewWorksheetCellFormat();

             HeadCellFormat.Alignment = HorizontalCellAlignment.Center;

             HeadCellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             HeadCellFormat.Font.Name = "宋体";

             HeadCellFormat.BottomBorderColor = Color.Black;

             HeadCellFormat.LeftBorderColor = Color.Black;

             HeadCellFormat.RightBorderColor = Color.Black;

             HeadCellFormat.TopBorderColor = Color.Black;

             HeadCellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.WrapText = ExcelDefaultableBoolean.True;

             IWorksheetCellFormat ItemCellFormat = wb.CreateNewWorksheetCellFormat();

             //CellFormat.Alignment = HorizontalCellAlignment.Center;

             //CellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             ItemCellFormat.FillPattern = FillPatternStyle.Default;

             ItemCellFormat.ShrinkToFit = ExcelDefaultableBoolean.True;

             ItemCellFormat.BottomBorderColor = Color.Black;

             ItemCellFormat.LeftBorderColor = Color.Black;

             ItemCellFormat.RightBorderColor = Color.Black;

             ItemCellFormat.TopBorderColor = Color.Black;

             ItemCellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.WrapText = ExcelDefaultableBoolean.True;

             ItemCellFormat.FormatString = "##,##0.00";

             ItemCellFormat.Font.Name = "宋体";

             #endregion

             int n;

             n = ;

             #region

             wmc = wm.Add(, n, , n++);

             wmc.Value = "序号";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "题目名称";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "题目类型";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "题目难度";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案1";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案2";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案3";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案4";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案5";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案6";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "正确答案";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "参考答案";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "答案解析";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             #endregion

             int Groupid = Convert.ToInt32(Request.QueryString["ParentRowID"]);

             //List<M_Exam_Subject> list_s = bll.SelectAll().FindAll(x => x.GroupID == Groupid);

             List<M_Exam_Subject> list_s = bll.SelectByGroupID(Groupid);

             for (int i = ; i < list_s.Count; i++)

             {

                 string tmSubjectGuid = list_s[i].SubjectGuid.ToString();

                 n = ;

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = Convert.ToString(i + );

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = list_s[i].Title.ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 string type = list_s[i].Type.ToString();

                 wmc.Value = GetType(type);

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 string difficult = list_s[i].Difficult.ToString();

                 wmc.Value = GetDifficult(difficult);

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 #region 导出Exam_Answer表答案

                 //DataView da = GetExcelDaAn(tmSubjectGuid);

                 List<M_Exam_Answer> list_a = bllAnswer.SelectBySubjectGuid(tmSubjectGuid);

                 if (list_a.Count > )

                 {

                     for (int j = ; j < list_a.Count; j++)

                     {

                         wmc = wm.Add(i + , n, i + , n++);

                         wmc.Value = list_a[j].AnswerName.ToString();

                         wmc.CellFormat.SetFormatting(ItemCellFormat);

                     }

                     for (int m = ; m < ( - list_a.Count); m++)

                     {

                         wmc = wm.Add(i + , n, i + , n++);

                         wmc.Value = "";

                         wmc.CellFormat.SetFormatting(ItemCellFormat);

                     }

                 }

                 else

                     for (int j = ; j < ; j++)

                     {

                         wmc = wm.Add(i + , n, i + , n++);

                         wmc.Value = "";

                         wmc.CellFormat.SetFormatting(ItemCellFormat);

                     }

                 #endregion

                 //导出Exam_Answer表答案IsRight

                 string isright = "";

                 List<M_Exam_Answer> list_aw = bllAnswer.SelectBySubjectGuid(tmSubjectGuid).FindAll(x => x.IsRight == isright);

                 string stranswer_kg = "";

                 if (list_aw.Count > )

                 {

                     int j = ;

                     for (int m = ; m < list_aw.Count; m++)

                     {

                         stranswer_kg += j.ToString() + "." + list_aw[m].AnswerName.ToString();

                         j++;

                     }

                     wmc = wm.Add(i + , n, i + , n++);

                     wmc.Value = stranswer_kg;

                     wmc.CellFormat.SetFormatting(ItemCellFormat);

                 }

                 else

                     for (int m = ; m < ; m++)

                     {

                         wmc = wm.Add(i + , n, i + , n++);

                         wmc.Value = "";

                         wmc.CellFormat.SetFormatting(ItemCellFormat);

                     }

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = string.IsNullOrEmpty(list_s[i].RightAnswer) ? "" : list_s[i].RightAnswer.ToString();//参考答案

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = string.IsNullOrEmpty(list_s[i].AnswerNote) ? "" : list_s[i].AnswerNote.ToString();// list_s[i].AnswerNote.ToString();//答案解析

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

             }

             string mark = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString();

             strFileName = "Export_" + mark + ".xls";

             BIFF8Writer.WriteWorkbookToFile(wb, Server.MapPath("ExcelExport/" + strFileName));

             return strFileName;

         }

         #endregion

导出整个DataGrid

 protected void InfoExport()

         {

             try

             {

                 string ExcelName = this.CreateExcel();

                 //将服务器上的Excel导出

                 // CuteWebUIOperate.DownloadFile(HttpContext.Current, Server.MapPath("ExcelExport/") + ExcelName, ExcelName, false);

                 string strScript = "window.open('ExcelExport/" + ExcelName + "');";

                 this.WriteAjaxMessage(strScript);

             }

             catch

             {

                 throw;

             }

         }

 protected string CreateExcel()  //生成Excel

         {

             string Header = "批次信息";

             string strFileName = "";

             // 生成文件夹

             string fileFolderPath = Server.MapPath("ExcelExport/");

             if (!System.IO.Directory.Exists(fileFolderPath))

                 System.IO.Directory.CreateDirectory(fileFolderPath);

             Workbook wb = new Workbook();

             wb.Worksheets.Add("Sheet1");

             Worksheet ws = wb.ActiveWorksheet;

             //first row 19cell

             WorksheetMergedCellsRegionCollection wm = ws.MergedCellsRegions;

             WorksheetMergedCellsRegion wmc = wm.Add(, , , );//起始位置和终止位置

             wmc.Value = Header;

             wmc.CellFormat.Alignment = HorizontalCellAlignment.Center;

             wmc.CellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             wmc.CellFormat.BottomBorderColor = Color.Black;

             wmc.CellFormat.LeftBorderColor = Color.Black;

             wmc.CellFormat.RightBorderColor = Color.Black;

             wmc.CellFormat.TopBorderColor = Color.Black;

             wmc.CellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             wmc.CellFormat.WrapText = ExcelDefaultableBoolean.True;

             wmc.CellFormat.Font.Name = "宋体";

             //字体大小

             wmc.CellFormat.Font.Height = ;

             IWorksheetCellFormat HeadCellFormat = wb.CreateNewWorksheetCellFormat();

             HeadCellFormat.Alignment = HorizontalCellAlignment.Center;

             HeadCellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             HeadCellFormat.Font.Name = "宋体";

             HeadCellFormat.BottomBorderColor = Color.Black;

             HeadCellFormat.LeftBorderColor = Color.Black;

             HeadCellFormat.RightBorderColor = Color.Black;

             HeadCellFormat.TopBorderColor = Color.Black;

             HeadCellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             HeadCellFormat.WrapText = ExcelDefaultableBoolean.True;

             IWorksheetCellFormat ItemCellFormat = wb.CreateNewWorksheetCellFormat();

             //CellFormat.Alignment = HorizontalCellAlignment.Center;

             //CellFormat.Font.Bold = ExcelDefaultableBoolean.True;

             ItemCellFormat.FillPattern = FillPatternStyle.Default;

             ItemCellFormat.ShrinkToFit = ExcelDefaultableBoolean.True;

             ItemCellFormat.BottomBorderColor = Color.Black;

             ItemCellFormat.LeftBorderColor = Color.Black;

             ItemCellFormat.RightBorderColor = Color.Black;

             ItemCellFormat.TopBorderColor = Color.Black;

             ItemCellFormat.BottomBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.LeftBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.RightBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.TopBorderStyle = CellBorderLineStyle.Thin;

             ItemCellFormat.WrapText = ExcelDefaultableBoolean.True;

             ItemCellFormat.FormatString = "##,##0.00";

             ItemCellFormat.Font.Name = "宋体";

             int n;

             n = ;

             //wmc = wm.Add(1, n, 1, n++);

             //wmc.Value = "序号";

             //wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "企业名称";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "企业地址";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "所属分局";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "报名日期";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "姓名";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "性别";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "出生日期";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             ws.Columns[n].Width =  * ;

             wmc = wm.Add(, n, , n++);

             wmc.Value = "身份证号码";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "手机号码";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "是否已交费";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "交费日期";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "是否已安排培训";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             ws.Columns[n].Width =  * ;

             wmc = wm.Add(, n, , n++);

             wmc.Value = "培训批次";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "培训开始日期";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             wmc = wm.Add(, n, , n++);

             wmc.Value = "培训结束日期";

             wmc.CellFormat.SetFormatting(HeadCellFormat);

             DataView dv = GetExcelData();//获取报名信息

             for (int i = ; i < dv.Count; i++)

             {

                 n = ;

                 //wmc = wm.Add(i + 2, n, i + 2, n++);

                 //wmc.Value = Convert.ToString(i + 1);

                 //wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["DanWeiName"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["DetailAddress"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = DB_Common.GetCodeName("PX_分局名称", dv[i]["BelongFenJu"].ToString());

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["BMAddDate"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["Name"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = DB_Common.GetCodeName("PX_性别", dv[i]["Sex"].ToString());

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["BirthDay"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["IdentityNum"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["MobilePhone"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = DB_Common.GetCodeName("PX_是否", dv[i]["IsPay"].ToString());

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["PayDate"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = DB_Common.GetCodeName("PX_是否", dv[i]["IsPeiXun"].ToString());

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["BaoMPiCi"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["PXStartDate"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

                 wmc = wm.Add(i + , n, i + , n++);

                 wmc.Value = dv[i]["PXEndDate"].ToString();

                 wmc.CellFormat.SetFormatting(ItemCellFormat);

             }

             string mark = DateTime.Now.Year.ToString() + DateTime.Now.Month.ToString() + DateTime.Now.Day.ToString() + DateTime.Now.Hour.ToString() + DateTime.Now.Minute.ToString();

             strFileName = "Export_" + mark + ".xls";

             BIFF8Writer.WriteWorkbookToFile(wb, Server.MapPath("ExcelExport/" + strFileName));

             return strFileName;

         }

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