asp.net+c#中如何实现文件下载？

[hhren]

如题所述，有源码吗？

[madong]

我觉得你的分有点少了
帮你up下

[大户翁]

直接链接到要下载的文件 就可

[xieyi80]

将要下载的文件打包（.rar格式），然后链接就可以了！

[osborne]

string path = Server.MapPath(Request.Params["File"]);
System.IO.FileInfo file = new System.IO.FileInfo(path);

// clear the current output content from the buffer
Response.Clear();
// add the header that specifies the default filename for the Download/SaveAs dialog
Response.AddHeader("Content-Disposition", "attachment; filename=" + file.Name);
// add the header that specifies the file size, so that the browser
// can show the download progress
Response.AddHeader("Content-Length", file.Length.ToString());
// specify that the response is a stream that cannot be read by the
// client and must be downloaded
Response.ContentType = "application/octet-stream";
// send the file stream to the client
Response.WriteFile(file.FullName);
// stop the execution of this page
Response.End();