public class Rootobject
        {
            public UF_TASK_WEBDAV_FILES[] UF_TASK_WEBDAV_FILES { get; set; }
        }

        public class UF_TASK_WEBDAV_FILES
        {
            public int ATTACHMENT_ID { get; set; }
            public string NAME { get; set; }
            public string SIZE { get; set; }
            public string FILE_ID { get; set; }
            public string DOWNLOAD_URL { get; set; }
            public string VIEW_URL { get; set; }
        }