how to download file from ftp using c#

public bool Download(string filePath, string fileName)

    {

       

        FtpWebRequest reqFTP;

        try

        {

            string ftpServerIP =”ftpservernane”;

            //filePath = <>,

            //fileName = <>

            FileStream outputStream = new FileStream(filePath + "\\" + fileName, FileMode.Create);

            string uri = "ftp://" + ftpServerIP + "/" + fileName;

            reqFTP = (FtpWebRequest)FtpWebRequest.Create(new Uri("ftp://" + ftpServerIP + "/" + fileName));

            reqFTP.Method = WebRequestMethods.Ftp.DownloadFile;

            reqFTP.UseBinary = true;

            reqFTP.Credentials = new NetworkCredential("", "");

            FtpWebResponse response = (FtpWebResponse)reqFTP.GetResponse();

            Stream ftpStream = response.GetResponseStream();

            long cl = response.ContentLength;

            int bufferSize = 2048;

            int readCount;

            byte[] buffer = new byte[bufferSize];

            if (ftpFileExist(uri))

            {

                readCount = ftpStream.Read(buffer, 0, bufferSize);

                while (readCount > 0)

                {

                    outputStream.Write(buffer, 0, readCount);

                    readCount = ftpStream.Read(buffer, 0, bufferSize);

                }

                ftpStream.Close();

                outputStream.Close();

                response.Close();

             

                return true;

            }

            else

            { return false; }

        }

        catch (Exception ex)

        {

            return false; //MessageBox.Show(ex.Message);

        }

    }

  public bool ftpFileExist(string fileName)

    {

        WebClient wc = new WebClient();

        try

        {

            wc.Credentials = new NetworkCredential("", "");

            byte[] fData = wc.DownloadData(fileName);

            if (fData.Length > -1)

            {

                return true;

            }

            else

            {

                return false;

            }

        }

        catch (Exception)

        {

            // Debug here?

        }

        return false;

    }