如何从gridview下载所选文件。我需要使用session在另一个页面中下载所选文件 [英] How to download a selected file from gridview. I need to download the selected file in another page using session

问题描述

我是新手，我创建了一个网站，用户登录并搜索文件并尝试下载。但是用户只有在提供密钥后才能下载它。我的问题是如何在验证后从gridview下载所选文件？

解决方案

检查这些：

http：// www .aspsnippets.com / Articles / download-multiple-files-as-Zip-Archive-File-using-GridView-in-ASPNet.aspx [ ^ ]

http://www.bipinjoshi.net/articles/2cd48325-5523-4442- 98a8-63f12dba567b.aspx [ ^ ]

您好，您可以通过不同的方式实现这一目标。如果您的网格包含要下载的文件的uri，则只需通过将下载文件路径作为参数调用以下函数。

  public   void  DownloadFile（ string  filePath）
 {
 Response.ClearContent（）; 
 Response.Clear（）; 
 Response.ContentType =   APPLICATION / OCTET-STREAM; 
 字符串标题=  附件;文件名= \ +   FileName.pdf +   \; 
 Response.AppendHeader（  Content-Disposition，Header）; 
 System.IO.FileInfo Dfile =  new  System.IO.FileInfo（filePath）; 
 Response.WriteFile（Dfile.FullName）; 
  //  不要忘记添加以下行 
 Response.End （）; 
} 

我希望这会对你有所帮助。 ：）

I am new to this, I have created a website in which user logs in and searches a file and tries to download it. But user can download it only after giving a secret key. My question is how to download the selected file from gridview after the validation?

解决方案

Hi,
Check these :
http://www.aspsnippets.com/Articles/Download-multiple-files-as-Zip-Archive-File-using-GridView-in-ASPNet.aspx[^]
http://www.bipinjoshi.net/articles/2cd48325-5523-4442-98a8-63f12dba567b.aspx[^]

Hi, You can achieve this using different ways. If your grid contains uri of the file you want to download then just call below function by passing download file path as a parameter.

public void DownloadFile(string filePath)
{
  Response.ClearContent();
  Response.Clear();
  Response.ContentType = "APPLICATION/OCTET-STREAM";
  String Header = "Attachment; Filename=\"" +   "FileName.pdf" + "\"";
  Response.AppendHeader("Content-Disposition", Header);
  System.IO.FileInfo Dfile = new System.IO.FileInfo(filePath);
  Response.WriteFile(Dfile.FullName);
  //Don't forget to add the following line
  Response.End();
}

I hope this will help you. :)

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