rdlc导出Excel

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using Microsoft.Reporting.WebForms;
using CrystalDecisions.Shared;
using CrystalDecisions.CrystalReports.Engine;
using System.IO;

public partial class _Default : System.Web.UI.Page
{
    protected CrystalDecisions.CrystalReports.Engine.ReportDocument reportDocument1=new ReportDocument();
    protected void Page_Load(object sender, EventArgs e)
    {

    }
     protected void Button1_Click1(object sender, EventArgs e)
    {

        Microsoft.Reporting.WebForms.Warning[] Warnings;
        string[] streamids;
        string mimeType;
        string encoding;
        string fileNameExtension;

        Microsoft.Reporting.WebForms.LocalReport lr = new Microsoft.Reporting.WebForms.LocalReport();

        string deviceInfo = "<DeviceInfo>" + "<SimplePageHeaders>True</SimplePageHeaders>" +  "</DeviceInfo>";

        lr.ReportPath = Server.MapPath("Report2.rdlc");

        lr.DataSources.Add(new ReportDataSource("DataSet1_ord", ObjectDataSource1));

        byte[] bytes = lr.Render("Excel", deviceInfo, out mimeType,  out encoding,out fileNameExtension, out streamids, out Warnings);

        using (FileStream fs = new FileStream(@"C:\study_net2005\Report2.xls", FileMode.Create))
        {
            fs.Write(bytes, 0, bytes.Length);
            fs.Close();
        }

       //客户端不行
       // object o = System.Reflection.Missing.Value;
       // Excel.Application excelapp = new Excel.ApplicationClass();
       //// Excel.Workbook wkbook = excelapp.Workbooks.Open("C:\\study_net2005\\Report2.xls", o, o, o, o, o, o, o, o, o, o, o, o);
       // Excel.Workbook wkbook = excelapp.Workbooks.Open("C:\\study_net2005\\Report2.xls", o, o, o, o, o, o, o, o, o, o, o, o,o,o);
       // excelapp.Visible = true;      // //wkbook.PrintPreview(true);//预览  
       // wkbook.PrintOut(o, o, o, o, o, o, o, o);//打印  
       // wkbook.Save();
       // excelapp.Quit();

    }
}

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