我如何...解决pdf下载代码问题。 [英] How do I... Resolve pdf downloading code issue.

问题描述

以下是我的问题情节。



我开发了一个网络sie使用ASP.net。



我在本网站使用母版页，在该母版页上我有菜单控件，退出按钮。



我有一个网页有pdf下载功能。



以下是我的pdf下载代码。

 DirectoryInfo myDir = new DirectoryInfo（C：\\Bills+ billmonth）; 
 FileInfo [] files = myDir.GetFiles（PDFName +* .pdf）; 
 byte [] bytes = null; 
 string path = files [0] .FullName; 
 bytes = System.IO.File.ReadAllBytes（path）; 
 Response.ClearHeaders（）; 
 Response.ClearContent（）; 
 Response.ContentType =application\\pdf; 
 Response.ContentEncoding = System.Text.Encoding.UTF8; 
 Response.AddHeader（Content-disposition，attachment; filename =+ files [0] .Name）; 
 Response.BinaryWrite（bytes）; 
 Response.End（）; 
 

以上代码在浏览器中工作正常。



但我的问题从这里开始，当我的pdf下载完成并且我尝试从我的网站注销然后注销功能无效。要从网站注销我需要每次刷新页面。



请帮帮我



谢谢，

申请

解决方案

 受保护 < span class =code-keyword> void  lnkfilepath_Click（ object  sender，EventArgs e） //   ur link button  
 {
  string  filename = lnkfilepath.Text; 
  string  Filpath = Server.MapPath（  〜/ Attachments / + filename）; 
 DownLoad（Filpath）; 
 
} 
  public   void  DownLoad（ string  FName）
 {
  string  path = FName; 
 System.IO.FileInfo file =  new  System.IO.FileInfo（path）; 
  if （file.Exists）
 {
 Response.Clear（）; 
 Response.AddHeader（  Content-Disposition，  attachment; filename = + file.Name）; 
 Response.AddHeader（  Content-Length，file.Length.ToString（）） ; 
 Response.ContentType =   application / octet-stream;  //  下载所有类型的文件..  
 Response.WriteFile（file.FullName）; 
 Response.End（）; 
 
} 
  else  
 {
 Response.Write（ 此文件不存在。）; 
} 
 
} 

你可以使用上面的代码..支持所有类型的文件下载

参考点击这里

你好shashikant86，你可以'了解代码发生了什么，

只需将下面的代码放入下载代码后自动刷新页面



Respons.Redirect（ yourpage.aspx）

Hi,

Below is my problem scenario.

I have developed one web sie using ASP.net.

I am using Master page in this website and on that master page i have menu contorls, Log out button placed.

I have one web page which is having pdf downloading functionality.

Below is my pdf downloading code.

DirectoryInfo myDir = new DirectoryInfo("C:\\Bills" + billmonth);
                   FileInfo[] files = myDir.GetFiles(PDFName + "*.pdf");
                   byte[] bytes = null;
                   string path = files[0].FullName;
                   bytes = System.IO.File.ReadAllBytes(path);
                   Response.ClearHeaders();
                   Response.ClearContent();
                   Response.ContentType = "application\\pdf";
                   Response.ContentEncoding = System.Text.Encoding.UTF8;
                   Response.AddHeader("Content-disposition", "attachment; filename=" + files[0].Name);
                   Response.BinaryWrite(bytes);
                   Response.End();

Above code is working fine in browser.

But my problem starts here ,when my pdf download compltets and i try to log out from my web site then log out functionality not working. To logout from web site i need to refresh page every time.

Please help me

Thanks,
application

解决方案

protected void lnkfilepath_Click(object sender, EventArgs e) // ur link button
    {
        string filename = lnkfilepath.Text;
        string Filpath = Server.MapPath("~/Attachments/" + filename);
        DownLoad(Filpath);

    }
    public void DownLoad(string FName)
    {
        string path = FName;
        System.IO.FileInfo file = new System.IO.FileInfo(path);
        if (file.Exists)
        {
            Response.Clear();
            Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
            Response.AddHeader("Content-Length", file.Length.ToString());
            Response.ContentType = "application/octet-stream"; // download all types of files..
            Response.WriteFile(file.FullName);
            Response.End();

        }
        else
        {
            Response.Write("This file does not exist.");
        }

    }

Can u use this above code..its support all types of file downloading
Reference Click Here

Hi shashikant86 , you can't understand what happening the code ,
just put the below code in after download code it refresh the page automatically

Respons.Redirect("yourpage.aspx")

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