C#导出数据到Excel的简单代码
public void CreateExcel1(DataSet ds, string typeid, string FileName) { HttpResponse resp = System.Web.HttpContext.Current.Response; resp.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312"); resp.AppendHeader("Content-Disposition", "attachment;filename=" + FileName); resp.Charset = "UTF-8"; //HttpContext.Current.Response.ContentEncoding =System.Text.Encoding.Default; resp.ContentType = "application/ms-excel";//image/JPEG;text/HTML;image/GIF;vnd.ms-excel 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 colHeaders += "<table cellspacing=\"0\" cellpadding=\"5\" rules=\"all\" border=\"1\"> <tr style=\"font-weight: bold; white-space: nowrap;\">"; for (i = 0; i < dt.Columns.Count - 1; i++) //colHeaders+=dt.Columns[i].Caption.ToString()+"\t"; colHeaders += "<td>" + dt.Columns[i].Caption.ToString() + "</td>"; //colHeaders +=dt.Columns[i].Caption.ToString() +"\n"; colHeaders += "<td>" + dt.Columns[i].Caption.ToString() + "</td></tr>"; //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) { ls_item += "<tr>"; //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\n for (i = 0; i < dt.Columns.Count - 1; i++) //ls_item +=row[i].ToString().Replace("\t","") + "\t"; ls_item += "<td style=\"vnd.ms-excel.numberformat:@\">" + row[i].ToString().Replace("\t", "") + "</td>"; ls_item += "<td>" + row[i].ToString().Replace("\t", "") + "</td></tr>"; //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(); }