遇到了一个问题:需要从dataset中导出excel,要求如下:
1.不能使用excel对象,因为服务器在远端
2.生成的样式要和excel一样,不能出现白底等现象过程:因为前期写了一个方法,实现了不使用excel对象导出,主要是用流方式,用html文件模拟的,但是问题是导出的excel显示的时候比较难看,有黑框和白底,视觉上不美观,想到过用css处理,但是由于不能控制一个sheet中的列的个数,最终放弃。现在需要一个完美的解决方案。

解决方案 »

  1.   

     protected void CreateExcel(DataSet ds,string fileName)
        {        StringBuilder strb = new StringBuilder();
            strb.Append("<html xmlns:o=\"urn:schemas-microsoft-com:office:office\"");
            strb.Append("xmlns:x=\"urn:schemas-microsoft-com:office:excel\"");
            strb.Append("xmlns=\"http://www.w3.org/TR/REC-html40\"");
            strb.Append("<head><meta http-equiv='Content-Type' content='text/html; charset=gb2312'>");
            strb.Append("<style>");
            strb.Append(".xl26");
            strb.Append(" {mso-style-parent:style0;");
            strb.Append(" font-family:\"Times New Roman\", serif;");
            strb.Append(" mso-font-charset:0;");
            strb.Append(" mso-number-format:\"@\";}");
            strb.Append("</style>");
            strb.Append("<xml>");
            strb.Append(" <x:ExcelWorkbook>");
            strb.Append("  <x:ExcelWorksheets>");
            strb.Append("   <x:ExcelWorksheet>");
            strb.Append("    <x:Name>Sheet1</x:Name>");
            strb.Append("    <x:WorksheetOptions>");
            strb.Append("     <x:DefaultRowHeight>285</x:DefaultRowHeight>");
            strb.Append("     <x:Selected/>");
            strb.Append("     <x:Panes>");
            strb.Append("      <x:Pane>");
            strb.Append("       <x:Number>3</x:Number>");
            strb.Append("       <x:ActiveCol>1</x:ActiveCol>");
            strb.Append("      </x:Pane>");
            strb.Append("     </x:Panes>");
            strb.Append("     <x:ProtectContents>False</x:ProtectContents>");
            strb.Append("     <x:ProtectObjects>False</x:ProtectObjects>");
            strb.Append("     <x:ProtectScenarios>False</x:ProtectScenarios>");
            strb.Append("    </x:WorksheetOptions>");
            strb.Append("   </x:ExcelWorksheet>");
            strb.Append("  <x:WindowHeight>6750</x:WindowHeight>");
            strb.Append("  <x:WindowWidth>10620</x:WindowWidth>");
            strb.Append("  <x:WindowTopX>480</x:WindowTopX>");
            strb.Append("  <x:WindowTopY>75</x:WindowTopY>");
            strb.Append("  <x:ProtectStructure>False</x:ProtectStructure>");
            strb.Append("  <x:ProtectWindows>False</x:ProtectWindows>");
            strb.Append(" </x:ExcelWorkbook>");
            strb.Append("</xml>");
            strb.Append("");
            strb.Append("</head><body><table align=\"center\" style='border-collapse:collapse;table-layout:fixed'><tr>");        if (ds.Tables.Count > 0)
            {
                //写列标题            int columncount = ds.Tables[0].Columns.Count;
                for (int columi = 0; columi < columncount; columi++)
                {
                    strb.Append("<td><b>" + ds.Tables[0].Columns[columi] + "</b></td>");
                }
                strb.Append("</tr>");
                //写数据            for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                {
                    strb.Append("<tr>");
                    for (int j = 0; j < ds.Tables[0].Columns.Count; j++)
                    {
                        strb.Append("<td class='xl26'>" + ds.Tables[0].Rows[i][j].ToString() + "</td>");
                    }
                    strb.Append("</tr>");
                }        }
            strb.Append("</body></html>");
            Response.Clear();
            Response.Buffer = true;
            Response.Charset = "GB2312";
            Response.AppendHeader("Content-Disposition", "attachment;filename=" + fileName);
            Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");//设置输出流为简体中文
            Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。 
            this.EnableViewState = false;        Response.Write(strb);
            Response.End();
        }