asp.net很简单的问题 请教！

Question

asp.net  迅雷下载  不显示文件大小和进度  请教各位大仙？？

Answer 1

asp.net做的下载功能 使用迅雷下载 不显示文件大小和进度 但是能下载

Answer 2

asp.net做的下载功能 使用迅雷下载 不显示文件大小和进度 但是能下载

Answer 3

加一个Response.AppendHeader("Content-Length", DownloadFile.Length.ToString());
试试看

Answer 4

不传递文件大小就可以了.        public static void ResponseFile(string filepath, string filename, string filetype)
        {
            Stream iStream = null;            // 缓冲区为10k
            byte[] buffer = new Byte[10000];            // 文件长度
            int length;            // 需要读的数据长度
            long dataToRead;            try
            {
                // 打开文件
                iStream = new FileStream(filepath, FileMode.Open, FileAccess.Read, FileShare.Read);                // 需要读的数据长度
                dataToRead = iStream.Length;                HttpContext.Current.Response.ContentType = filetype;
                HttpContext.Current.Response.AddHeader("Content-Disposition", "attachment;filename=" + Utils.UrlEncode(filename.Trim()).Replace("+", " "));                while (dataToRead > 0)
                {
                    // 检查客户端是否还处于连接状态
                    if (HttpContext.Current.Response.IsClientConnected)
                    {
                        length = iStream.Read(buffer, 0, 10000);
                        HttpContext.Current.Response.OutputStream.Write(buffer, 0, length);
                        HttpContext.Current.Response.Flush();
                        buffer = new Byte[10000];
                        dataToRead = dataToRead - length;
                    }
                    else
                    {
                        // 如果不再连接则跳出死循环
                        dataToRead = -1;
                    }
                }
            }
            catch (Exception ex)
            {
                HttpContext.Current.Response.Write("Error : " + ex.Message);
            }
            finally
            {
                if (iStream != null)
                {
                    // 关闭文件
                    iStream.Close();
                }
            }
            HttpContext.Current.Response.End();
        }