下载自动弹出另存为的窗体？

[凌珞]

我在网上查结果：string filePath = Server.MapPath(@"DownLoad\Document\" + Propath);//要下载文件的路径.

if (File.Exists(filePath))
{
FileInfo DownloadFile = new FileInfo(Propath);
Response.Clear();
Response.ClearHeaders();
Response.Buffer = false;
Response.ContentType = "application/octet-stream ";
Response.AppendHeader("Content-Disposition ", "attachment;filename= " + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF8));
Response.AppendHeader("Content-Length ", DownloadFile.Length.ToString());
Response.WriteFile(DownloadFile.FullName);
Response.Flush();
Response.End();
}

说在header里面，不懂这段代码到底怎么用？

[liuwei2500]

你将连接用linkbutton来做，然后点击的时候触发事件就可以了吗，先判断连接的文件是否存在，如果存在就会弹出另存为的