C# FTP 读取一个文件夹的所有文件按创建或者修改顺序排序-怎么做？急求助
public bool GetFileList(string filePattern, ref string[] fileList, ref string strErr)
        {
            bool bRet = false;
            
            try
            {
                StringBuilder result = new StringBuilder();
                    string uri = "ftp://" + ftpServerIP + ":" + ftpPort;
                    if (ftpDictionary != "") { uri += "/" + ftpDictionary; }
                    uri += "/";

                    strErr = Connect(uri);//连接
                    if (strErr != "")
                    {
                        //dispose
                        return bRet;
                    }

                    reqFTP.Method = WebRequestMethods.Ftp.ListDirectory;
                    reqFTP.KeepAlive = false;
                    WebResponse response = reqFTP.GetResponse();
               
               
                    StreamReader reader = new StreamReader(response.GetResponseStream(), System.Text.Encoding.Default);//中文文件名

                    string line = reader.ReadLine();

                    while (line != null)
                    {
                        result.Append(line);

                        result.Append("\n");

                        line = reader.ReadLine();

                    }
                    reader.Close();

                    response.Close();
                    
                    fileList= result.ToString().Spli

}