C#从服务端下载文件wrtitefile分块下载没反应

Question

string fileName = "downLoadFile.txt";
string filePath = context.Server.MapPath("downLoadFile.txt");
这两个地方填的到底是什么？下载后文件存放的位置，还是服务端被下载的文件。如果是被下载的文件，那么文件下载下来到哪了。
如果是下载下来存放文件的路径，那么这段程序到if (fileinfo.Exists == true)就执行不下去

 string fileName = "downLoadFile.txt";
                string filePath = context.Server.MapPath("downLoadFile.txt");

                FileInfo fileinfo = new FileInfo(filePath);

                if (fileinfo.Exists == true)
                {
                    const long size = 102400;
                    byte[] buffer = new byte[size];
                    context.Response.Clear();
                    FileStream fileStream = File.OpenRead(filePath);
                    long fileLength = fileStream.Length;

                    context.Response.ContentType = "application/octet-stream";
                    context.Response.AddHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName));
                    //如果客户端连在服务器上
                    while (fileLength > 0 && context.Response.IsClientConnected)
                    {
                        int lengthRead = fileStream.Read(buffer, 0, Convert.ToInt32(size));
                        context.Response.OutputStream.Write(buffer, 0, lengthRead);
                        context.Response.Flush();
                        fileLength = fileLength - lengthRead;

                    }

Answer 1

下载的文件是客户端浏览器接收的，你服务器没有办法控制它。