StreamReader object got automatically disposed

Question

I have faced a weird error.

I need to download some files from excel which are uploaded on today. Files on FTP have the timestamp appeded with the filename. The code is as below:

FtpWebRequest ftpRequest = (FtpWebRequest)WebRequest.Create(strUrl);
ftpRequest.Credentials = new NetworkCredential(strUserName, strPassword);
ftpRequest.Method = WebRequestMethods.Ftp.ListDirectory;
FtpWebResponse response = (FtpWebResponse)ftpRequest.GetResponse();
StreamReader streamReader = new StreamReader(response.GetResponseStream());
Stream responseStream = response.GetResponseStream();


string line = streamReader.ReadLine();
while (!streamReader.EndOfStream)
{
    if (line.Contains(DateTime.Now.ToString("yyyyMMdd")))
    {
        strDownloadFilesName.Add(line);
        downloadPath = downloadPath + line;
        byte[] buffer = new byte[2048];
        FileStream fs = new FileStream(downloadPath, FileMode.Create);
        int ReadCount = responseStream.Read(buffer, 0, buffer.Length);
        while (ReadCount > 0)
        {
            fs.Write(buffer, 0, ReadCount);
            ReadCount = responseStream.Read(buffer, 0, buffer.Length);
        }
        string ResponseDescription = response.StatusDescription;
        //fs.Close();
        //responseStream.Close();
    }

    line = streamReader.ReadLine();

}

in the above code, once the if condition is true then after some iterations,

line = streamReader.ReadLine();

this line throws the error of:

Cannot access dispose object.
Object name: 'System.Net.Sockets.NetworkStream'.

Please help me out with it. Thanks in advance.

Answer 1

As a part of solution of the problem, I need to make different calls to achieve it instead of looping it by calling single time.