下载文件文件名乱码问题！编程下载服务器上一个文件，程序任何时候跟踪下面代码中“DownloadFile.FullName”都是对的，但实际谈出的下载框中的文件名却是乱码，高分求救！急

Question

 FileInfo DownloadFile = new FileInfo(createPath);
        Response.Clear();
        Response.ClearHeaders();
        Response.Buffer = false;
        Response.ContentType = "application/octet-stream";
        Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(DownloadFile.FullName, System.Text.Encoding.UTF32));
        Response.AddHeader("Content-Length", DownloadFile.Length.ToString());
        Response.TransmitFile(DownloadFile.FullName);
        Response.Flush();
        //Response.End();

Answer 1

Response.AddHeader( "Content-Disposition ",   "attachment;filename= "   +   Server.UrlEncode(DownloadFile.FullName)); 

Answer 2

System.Text.Encoding.UTF32?
what is your response encoding?

Answer 3

System.Text.Encoding.UTF32改成System.Text.Encoding.Default试试