gridview 导出excel 迅雷下载时问题 急求解决方法！

[wangkuixing]

在gridview导出excle时，若遇到迅雷下载就会出问题，下载的是.aspx页面，有时候还下载不了。

代码如下：
protected void Button_Save_Click(object sender, EventArgs e) //保存到Excel表中
{
GridView2.AllowPaging = false; //分页隐藏
GridView2.Columns[12].Visible = false; //删除列隐藏
GridView2.BottomPagerRow.Visible = false; //下面的分页设置隐藏
GridView2.DataBind();

StringBuilder sb = new StringBuilder();
StringWriter sw = new StringWriter(sb);
HtmlTextWriter htw = new HtmlTextWriter(sw);

Page page = new Page();
HtmlForm form = new HtmlForm();

GridView2.EnableViewState = false;
page.EnableEventValidation = false;
page.DesignerInitialize();

page.Controls.Add(form);
form.Controls.Add(GridView2);

page.RenderControl(htw);
Response.Clear(); //清空输出流
Response.Buffer = true; //开启缓冲输出
Response.ContentType = "application/vnd.ms-excel";
string filename = DateTime.Now.ToString("d");//获取时间（作为文件名）
Response.AddHeader("Content-Disposition", "attachment;filename=" + filename + ".xls");//设置存成的文件名字
Response.Charset = "GB2312"; //解决中文乱码的问题
Response.ContentType = "application/ms-excel";//设置输出文件类型为excel文件。
Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.Write(sb.ToString());
Response.End();

GridView2.Columns[12].Visible = true;
GridView2.BottomPagerRow.Visible = true;
GridView2.AllowPaging = true;
GridView2.DataBind();

}

[myhope88]

一般来说，contenttype有设定，而且headers中设定attachement了，应该不会有问题吧

[Devillyd]

遇到同样的问题，关注

[暖枫无敌]

这个好像跟IE浏览器的设置有点关系，我以前也遇到过，除了改变下设置外，我还真没找到解决办法，期待高手。

[wangkuixing]

contexType是我多写了一次，完全可以去掉一句。

[YnSky]

在迅雷里有设置.不监视网页就好了,点击下载就不启动迅雷了

[wwfgu00ing]

用文件流
/// <summary>   
/// 指定要下载文件的虚拟路径及文件名   
/// </summary>   
/// <param name="FileName"></param>   
public void downloadfile(string FileName)   
{   
   
  //打开要下载的文件   
  System.IO.FileStream r = new System.IO.FileStream(Server.MapPath(FileName), System.IO.FileMode.Open);   
  //设置基本信息   
  Response.Buffer = false;   
  Response.AddHeader("Connection", "Keep-Alive");   
  Response.ContentType = "application/octet-stream";   
  Response.AddHeader("Content-Disposition", "attachment;filename=" + System.IO.Path.GetFileName(FileName));   
  Response.AddHeader("Content-Length", r.Length.ToString());   
   
   
  while (true)   
  {   
  //开辟缓冲区空间   
  byte[] buffer = new byte[1024];   
  //读取文件的数据   
  int leng = r.Read(buffer, 0, 1024);   
  if (leng == 0)//到文件尾，结束   
  break;   
  if (leng == 1024)//读出的文件数据长度等于缓冲区长度，直接将缓冲区数据写入   
  Response.BinaryWrite(buffer);   
  else   
  {   
  //读出文件数据比缓冲区小，重新定义缓冲区大小，只用于读取文件的最后一个数据块   
  byte[] b = new byte[leng];   
  for (int i = 0; i < leng; i++)   
  b[i] = buffer[i];   
  Response.BinaryWrite(b);   
  }   
  }   
  r.Close();//关闭下载文件   
  Response.End();//结束文件下载   
}   

[wuyq11]

http://topic.csdn.net/u/20100702/15/cb179dde-d6bb-497c-88d2-69ea1c379c15.html

[Adechen]

设置两次contextType是为什么呀

[冰封剑心]

  if (File.Exists(filepath))
            {
                string filename = strFileName;

                System.IO.FileInfo file = new FileInfo(filepath);


                FileStream fs = new FileStream(filepath, FileMode.Open, FileAccess.Read);//file.Create();
                BinaryReader br = new BinaryReader(fs);
                if ((int)fs.Length==0)
                {
                    this.Page.ClientScript.RegisterStartupScript(this.GetType(), "str", "<script>alert(\"文件不存在！！\")</script>");
                    return;
                }
                byte[] byteTemp = br.ReadBytes((int)fs.Length);
                fs.Close();
                System.Web.HttpResponse response = System.Web.HttpContext.Current.Response;
                response.Clear();
                Encoding code = Encoding.GetEncoding("gb2312");
                response.ContentEncoding = code;
                response.HeaderEncoding = code;
                string SufName=string.Empty;
                SufName=GetSufName(filename);
                if (SufName == "tif")
                {
                    response.AddHeader("Content-Type", "image/tiff");
                }
                else if (SufName == "txt")
                {
                    response.AddHeader("Content-Type", "text/plain");
                   
                }
                else if (SufName == "doc")
                {
                    response.AddHeader("Content-Type", "application/msword");
                    
                }
                else if (SufName == "rar")
                {
                    response.AddHeader("Content-Type", "application/octet-stream");

                }
                else 
                {
                    response.AddHeader("Content-Type", "application/octet-stream");

                }

                if (Request.QueryString["LoadType"].ToString() == "download" )
                {
                   
                    response.AppendHeader("Content-Disposition",
                          "attachment; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8) + "; size=" + byteTemp.Length.ToString());
                  }
                else {     
                    response.AppendHeader("Content-Disposition",
                        "inline; filename=" + HttpUtility.UrlEncode(filename, System.Text.Encoding.UTF8) + "; size=" + byteTemp.Length.ToString());
                      }
                response.Flush();
                response.BinaryWrite(byteTemp);
                response.Flush();
                response.End();             
            }
            else
            {
                Response.Write("<script>alert('附件所对应的物理文件已经在应用程序外被删除！')</script>");
                Response.Write("<script>window.history.back()</script>");
            }


类似问题：我的只有在tif文件格式的时候出现  迅雷弹出.  目前使用的方法“不监视网站"。可以考虑直接在程序里面修改迅雷设置，如ie加载项里面去掉或者把烦人的迅雷屏蔽。

[wangkuixing]

好久了，都忘了结贴了