强制浏览器下载PDF文档，而不是打开它

问题描述

我想使浏览器从服务器上下载一个PDF文档，而不是浏览器本身打开的文件。我使用C＃。

下面是我的样本code，我使用。它不工作。

 字符串文件名=样本服务器URL;
Response.Redirect的（文件名）;
 

解决方案

您应该看一下内容处置标头;例如，设置内容处置到附件;文件名= foo.pdf会提示用户（通常）用另存为：foo.pdf对话框，而不是打开它。但是，这需要来自这是请求的做的下载，所以你不能重定向过程中做到这一点。但是，ASP.NET报价 Response.TransmitFile 用于这一目的。例如（假设你不使用MVC，里面有其他的preferred选项）：

  Response.Clear（）;
Response.ContentType =应用程序/ PDF
Response.AppendHeader（内容处理，附件;文件名= foo.pdf）;
Response.TransmitFile（文件路径）;
到Response.End（）;
 

I want to make the browser download a PDF document from server instead of opening the file in browser itself. I am using C#.

Below is my sample code which I used. It not working..

string filename = "Sample server url";
response.redirect(filename);

解决方案

You should look at the "Content-Disposition" header; for example setting "Content-Disposition" to "attachment; filename=foo.pdf" will prompt the user (typically) with a "Save as: foo.pdf" dialog, rather than opening it. This, however, needs to come from the request that is doing the download, so you can't do this during a redirect. However, ASP.NET offers Response.TransmitFile for this purpose. For example (assuming you aren't using MVC, which has other preferred options):

Response.Clear();
Response.ContentType = "application/pdf";
Response.AppendHeader("Content-Disposition", "attachment; filename=foo.pdf");
Response.TransmitFile(filePath);
Response.End();

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