public void CreateExcel(DataSet ds,string typeid,string FileName){HttpResponse resp;resp = Page.Response;resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName);string colHeaders= "", ls_item="";int i=0;//定义表对象与行对像，同时用DataSet对其值进行初始化DataTable dt=ds.Tables[0];DataRow[] myRow=dt.Select("");// typeid=="1"时导出为EXCEL格式文件；typeid=="2"时导出为XML格式文件if(typeid=="1"){//取得数据表各列标题，各标题之间以\t分割，最后一个列标题后加回车符for(i=0;i colHeaders+=dt.Columns[i].Caption.ToString()+"\t";colHeaders +=dt.Columns[i].Caption.ToString() +"\n";//向HTTP输出流中写入取得的数据信息resp.Write(colHeaders);//逐行处理数据foreach(DataRow row in myRow){//在当前行中，逐列获得数据，数据之间以\t分割，结束时加回车符\nfor(i=0;i ls_item +=row[i].ToString() + "\t";ls_item += row[i].ToString() +"\n";//当前行数据写入HTTP输出流，并且置空ls_item以便下行数据resp.Write(ls_item);ls_item="";}}else{if(typeid=="2"){//从DataSet中直接导出XML数据并且写到HTTP输出流中resp.Write(ds.GetXml());}}//写缓冲区中的数据到HTTP头文件中resp.End();}public void ToExcel(System.Web.UI.Control ctl){HttpContext.Current.Response.AppendHeader("Content-Disposition","attachment;filename=Exce l.xls");HttpContext.Current.Response.Charset ="UTF-8";HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default;HttpContext.Current.Response.ContentType="application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel/msword ctl.Page.EnableViewState =false;System.IO.StringWriter tw = new System.IO.StringWriter() ;System.Web.UI.HtmlTextWriter hw = new System.Web.UI.HtmlTextWriter (tw);ctl.RenderControl(hw);HttpContext.Current.Response.Write(tw.ToString());HttpContext.Current.Response.End();}用法：ToExcel(datagrid1);//3、这个用dataviewpublic void OutputExcel(DataView dv,string str){//// TODO: 在此处添加构造函数逻辑////dv为要输出到Excel的数据，str为标题名称GC.Collect();Application excel;// = new Application();int rowIndex=4;int colIndex=1;_Workbook xBk;_Worksheet xSt;excel= new ApplicationClass();xBk = excel.Workbooks.Add(true);xSt = (_Worksheet)xBk.ActiveSheet;////取得标题//foreach(DataColumn col in dv.Table.Columns){colIndex++;excel.Cells[4,colIndex] = col.ColumnName;xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[4,colIndex]).HorizontalAlignment = XlVAlign.xlVAlignCenter;//设置标题格式为居中对齐}////取得表格中的数据//foreach(DataRowView row in dv){rowIndex ++;colIndex = 1;foreach(DataColumn col in dv.Table.Columns){colIndex ++;if(col.DataType == System.Type.GetType("System.DateTime")){excel.Cells[rowIndex,colIndex] = (Convert.ToDateTime(row[col.ColumnName].ToString())).ToString("yyyy-MM-dd");xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignmen t = XlVAlign.xlVAlignCenter;//设置日期型的字段格式为居中对齐}elseif(col.DataType == System.Type.GetType("System.String")){excel.Cells[rowIndex,colIndex] = "'"+row[col.ColumnName].ToString();xSt.get_Range(excel.Cells[rowIndex,colIndex],excel.Cells[rowIndex,colIndex]).HorizontalAlignmen t = XlVAlign.xlVAlignCenter;//设置字符型的字段格式为居中对齐}else{excel.Cells[rowIndex,colIndex] = row[col.ColumnName].ToString();}}}////加载一个合计行//int rowSum = rowIndex + 1;int colSum = 2;excel.Cells[rowSum,2] = "合计";xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,2]).HorizontalAlignment = XlHAlign.xlHAlignCenter;////设置选中的部分的颜色//xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Select();xSt.get_Range(excel.Cells[rowSum,colSum],excel.Cells[rowSum,colIndex]).Interior.ColorIndex = 19;//设置为浅黄色，共计有56种////取得整个报表的标题//excel.Cells[2,2] = str;////设置整个报表的标题格式//xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Bold = true;xSt.get_Range(excel.Cells[2,2],excel.Cells[2,2]).Font.Size = 22;////设置报表表格为最适应宽度//xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Select();xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Columns.AutoFit();////设置整个报表的标题为跨列居中//xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).Select();xSt.get_Range(excel.Cells[2,2],excel.Cells[2,colIndex]).HorizontalAlignment = XlHAlign.xlHAlignCenterAcrossSelection;////绘制边框//xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,colIndex]).Borders.LineStyle = 1;xSt.get_Range(excel.Cells[4,2],excel.Cells[rowSum,2]).Borders[XlBordersIndex.xlEdgeLeft].Weight = XlBorderWeight.xlThick;//设置左边线加粗xSt.get_Range(excel.Cells[4,2],excel.Cells[4,colIndex]).Borders[XlBordersIndex.xlEdgeTop].Weight = XlBorderWeight.xlThick;//设置上边线加粗xSt.get_Range(excel.Cells[4,colIndex],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdg eRight].Weight = XlBorderWeight.xlThick;//设置右边线加粗xSt.get_Range(excel.Cells[rowSum,2],excel.Cells[rowSum,colIndex]).Borders[XlBordersIndex.xlEdg eBottom].Weight = XlBorderWeight.xlThick;//设置下边线加粗////显示效果//excel.Visible=true;//xSt.Export(Server.MapPath(".")+"\\"+this.xlfile.Text+".xls",SheetExportActionEnum.ssExportActi onNone,Microsoft.Office.Interop.OWC.SheetExportFormat.ssExportHTML);xBk.SaveCopyAs(Server.MapPath(".")+"\\"+this.xlfile.Text+".xls");ds = null;xBk.Close(false, null,null);excel.Quit();System.Runtime.InteropServices.Marshal.ReleaseComObject(xBk);System.Runtime.InteropServices.Marshal.ReleaseComObject(excel);System.Runtime.InteropServices.Marshal.ReleaseComObject(xSt);xBk = null;excel = null;xSt = null;GC.Collect();string path = Server.MapPath(this.xlfile.Text+".xls");System.IO.FileInfo file = new System.IO.FileInfo(path);Response.Clear();Response.Charset="GB2312";Response.ContentEncoding=System.Text.Encoding.UTF8;// 添加头信息，为"文件下载/另存为"对话框指定默认文件名Response.AddHeader("Content-Disposition", "attachment; filename=" + Server.UrlEncode());// 添加头信息，指定文件大小，让浏览器能够显示下载进度Response.AddHeader("Content-Length", file.Length.ToString());// 指定返回的是一个不能被客户端读取的流，必须被下载Response.ContentType = "application/ms-excel";// 把文件流发送到客户端Response.WriteFile(file.FullName);// 停止页面的执行Response.End();}。