从gridview asp.net c＃下载文件时出现错误信息 [英] Error message when download file from gridview asp.net c#

问题描述

嗨^ _ ^



i从gridview下载文件时出错



i保存的路径数据库和项目文件夹中的文件，



这是错误信息：



< a href => http://www.4shared.com/photo/1qvk0uBC/one。 html [ ^ ]



这是使用gridview的下载代码文件：

  protected   void  Button3_Click（ object  sender，EventArgs e）
 {
 
按钮bn =发件人 as 按钮; 
 GridViewRow gr = bn.NamingContainer  as  GridViewRow; 
  string  path = GridView1.DataKeys [gr.RowIndex] .Value.ToString（）; 
 Response.ContentType =   image / jpg; 
 Response.AddHeader（  Content-Disposition，  attachment; filename = \ + path +   \ ）; 
 Response.TransmitFile（Server.MapPath（path））;  //  错误在这里 
 Response.End（）; 
 
 
 
} 

这是上传代码：

 受保护 无效 Button1_Click（ object  sender，EventArgs e）
 {
 
  string  filename2 = Path.GetFileName（FileUpload1.PostedFile.FileName）; 
 FileUpload1.SaveAs（Server.MapPath（  Files / + filename2））; 
 SqlCommand com =  new  SqlCommand（  insert进入歌曲（sname，path）值（@ s，@ p），c1.cn）; 
 com.Parameters.AddWithValue（  @ s，SqlDbType.NVarChar）.Value = TextBox1.Text; 
 com.Parameters.AddWithValue（  @ p，SqlDbType.NVarChar）.Value =   Files / + filename2; 
 c1.cn.Open（）; 
 com.ExecuteNonQuery（）; 
 c1.cn.Close（）; 
 
 
} 
 

任何帮助？

解决方案

< httpRuntime maxRequestLength =2097151executionTimeout =9999/> 
< /system.web> 

请在关闭web.config中system.web的标签之前复制第一行文件。

Hi ^_^

i have an error when download files from gridview

i saved path in data base and files in a folder in project files ,

and this is error message:

http://www.4shared.com/photo/1qvk0uBC/one.html[^]

this is download code file using gridview:

protected void Button3_Click(object sender, EventArgs e)
    {
        
        Button bn = sender as Button;
        GridViewRow gr = bn.NamingContainer as GridViewRow;
        string path = GridView1.DataKeys[gr.RowIndex].Value.ToString();
        Response.ContentType = "image/jpg";
        Response.AddHeader("Content-Disposition", "attachment;filename=\"" + path + "\"");
        Response.TransmitFile(Server.MapPath(path)); // The error is here
        Response.End();
        

        
    }

and this is upload code :

protected void Button1_Click(object sender, EventArgs e)
   {

           string filename2 = Path.GetFileName(FileUpload1.PostedFile.FileName);
           FileUpload1.SaveAs(Server.MapPath("Files/" + filename2));
           SqlCommand com = new SqlCommand("insert into song (sname,path) values (@s,@p)", c1.cn);
           com.Parameters.AddWithValue("@s", SqlDbType.NVarChar).Value = TextBox1.Text;
           com.Parameters.AddWithValue("@p", SqlDbType.NVarChar).Value = "Files/" + filename2;
           c1.cn.Open();
           com.ExecuteNonQuery();
           c1.cn.Close();


   }

any help ?

解决方案

<httpRuntime maxRequestLength="2097151" executionTimeout="9999"/>
	</system.web>

Please copy first line before closing tag of system.web in your web.config file.

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