C#导出生成excel文件的方法小结(xml,html方式)
直接贴上代码，里面都有注释
/// <summary>
/// xml格式生成excel文件并存盘;
/// </summary>
/// <param name="page">生成报表的页面，没有传null</param>
/// <param name="dt">数据表</param>
/// <param name="tabletitle">报表标题，sheet1名</param>
/// <param name="filename">存盘文件名，全路径</param>
/// <param name="isdown">生成文件后是否提示下载,只有web下才有效</param>
public static void createexcelbyxml(system.web.ui.page page, datatable dt, string tabletitle, string filename, bool isdown)
{
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=\"");
strb.append(" <head> <meta http-equiv='content-type' content='text/html; charset=utf-8'>");
strb.append(" <style>");
strb.append("body");
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("table");
//strb.append(" {border-collapse:collapse;margin:1em 0;line-height:20px;font-size:12px;color:#222; margin:0px;}");
strb.append(" {border-collapse:collapse;margin:1em 0;line-height:20px;color:#222; margin:0px;}");
strb.append("thead tr td");
strb.append(" {background-color:#e3e6ea;color:#6e6e6e;text-align:center;font-size:14px;}");
strb.append("tbody tr td");
strb.append(" {font-size:12px;color:#666;}");
strb.append(" </style>");
strb.append(" <xml>");
strb.append(" <x:excelworkbook>");
strb.append(" <x:excelworksheets>");
strb.append(" <x:excelworksheet>");
//设置工作表 sheet1的名称
strb.append(" <x:name>" + tabletitle + " </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> ");
strb.append(" <table style=\"border-right: 1px solid #ccc;border-bottom: 1px solid #ccc;text-align:center;\"> <thead><tr>");
//合格所有列并显示标题
strb.append(" <td style=\"text-align:center;background:#d3eeee;font-size:18px;\" colspan=\"" + dt.columns.count + "\" ><b>");
strb.append(tabletitle);
strb.append(" </b></td> ");
strb.append(" </tr>");
strb.append(" </thead><tbody><tr style=\"height:20px;\">");
if (dt != null)
{
//写列标题
int columncount = dt.columns.count;
for (int columi = 0; columi < columncount; columi++)
{
strb.append(" <td style=\"width:110px;;text-align:center;background:#ccc;\"> <b>" + dt.columns[columi] + " </b> </td>");
}
strb.append(" </tr>");
//写数据
for (int i = 0; i < dt.rows.count; i++)
{
strb.append(" <tr style=\"height:20px;\">");
for (int j = 0; j < dt.columns.count; j++)
{
strb.append(" <td style=\"width:110px;;text-align:center;\">" + dt.rows[i][j].tostring() + " </td>");
}
strb.append(" </tr>");
}
}
strb.append(" </tbody> </table>");
strb.append(" </body> </html>");
string excelfilename = filename;
//string excelfilename = path.combine(page.request.physicalapplicationpath, path+"/guestdata.xls");
//报表文件存在则先删除
if (file.exists(excelfilename))
{
file.delete(excelfilename);
}
streamwriter writer = new streamwriter(excelfilename, false);
writer.writeline(strb.tostring());
writer.close();
//如果需下载则提示下载对话框
if (isdown)
{
downloadexcelfile(page, excelfilename);
}
}
---------
/// <summary>
/// web下提示下载
/// </summary>
/// <param name="page"></param>
/// <param name="filename">文件名，全路径</param>
public static void downloadexcelfile(system.web.ui.page page, string filename)
{
page.response.write("path:" + filename);
if (!system.io.file.exists(filename))
{
messagebox.showandredirect(page, "文件不存在！", filename);
}
else
{
fileinfo f = new fileinfo(filename);
httpcontext.current.response.clear();
httpcontext.current.response.addheader("content-disposition", "attachment; filename=" + f.name);
httpcontext.current.response.addheader("content-length", f.length.tostring());
httpcontext.current.response.addheader("content-transfer-encoding", "binary");
httpcontext.current.response.contenttype = "application/octet-stream";
httpcontext.current.response.writefile(f.fullname);
httpcontext.current.response.end();
}
}
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