SqlDataAdapter da = new SqlDataAdapter("Select Path from Table_Image where loginID='" + TxtNo.Text + "'", connection);
DataSet ds = new DataSet();
da.Fill(ds);
if (ds.Tables[0].Rows.Count > 0)
{
string host = "ftp://"; (Folder Path Where image save)
string userName = "uname"; (FTP User Name)
string pwd = "password"; (FTP Password)
string fileName = ds.Tables[0].Rows[0]["Path"].ToString();
fileName = fileName.Replace("url", "");
string remoteFile = Path.GetFileName(fileName);
string FTPFilePath = Path.Combine(host, remoteFile);
FtpWebRequest reqFTP = (FtpWebRequest)WebRequest.Create(FTPFilePath);
reqFTP.Credentials = new NetworkCredential(userName, pwd);
reqFTP.KeepAlive = false;
reqFTP.UseBinary = true;
reqFTP.UsePassive = false;
reqFTP.Method = WebRequestMethods.Ftp.DeleteFile;
FtpWebResponse resFTP =(FtpWebResponse)reqFTP.GetResponse();
string desc=resFTP.StatusDescription;
}