public static List <AlarmHistoryDocData> getFileInformation(string alarmNo, string colName, string machineid, string company, string plant, string cncCause, string cncSolution) { List <AlarmHistoryDocData> listDoc = new List <AlarmHistoryDocData>(); try { string mtb = DBAccess.getMTBForMachine(company, plant, machineid); List <AlarmHistoryDocData> documentIdList = MongoDBAccess.getAlarmHistoryDocumentList(alarmNo, colName, machineid, company, plant, cncCause, cncSolution, mtb); byte[] fileByte = null; foreach (var fileObjId in documentIdList) { AlarmHistoryDocData data = new AlarmHistoryDocData(); string fileid = fileObjId.FileID; string filenameStr = fileObjId.FileName; string fileBase64 = ""; ObjectId id = new ObjectId(fileid); Logger.WriteDebugLog("Download alarm doc File: Before: " + DateTime.Now); fileByte = MongoDBAccess.getAlarmFilesInByte(fileid, colName); Logger.WriteDebugLog("Download alarm doc File: After: " + DateTime.Now); if (fileByte != null) { fileBase64 = Convert.ToBase64String(fileByte); } Logger.WriteDebugLog("Download eDoc File: After base64: " + DateTime.Now); string fileName = filenameStr; if (!string.IsNullOrEmpty(fileBase64)) { string extension = ""; if (filenameStr != "") { var list = filenameStr.Split('.').ToList(); extension = list[list.Count - 1].ToLower(); } string filetype = ""; if ((extension == "mp4") || (extension == "wmv") || (extension == "avi") || (extension == "mov") || (extension == "qt") || (extension == "yuv") || (extension == "mkv") || (extension == "webm") || (extension == "flv") || (extension == "ogg") || (extension == "gif")) { filetype = "video"; } else if (extension == "png" || extension == "jpg" || extension == "tif" || extension == "tiff" || extension == "bmp" || extension == "jpeg" || extension == "gif" || extension == "eps" || extension == "tif" || extension == "tif" || extension == "tif") { filetype = "image"; } else if (extension == "pdf") { filetype = "pdf"; } else if (extension == "xlsx" || extension == "xlsm" || extension == "xlsb" || extension == "xltx" || extension == "xltm" || extension == "xls" || extension == "xlt" || extension == "xml" || extension == "xlam" || extension == "xlw" || extension == "xlr") { filetype = "excel"; } else { filetype = "other"; } data.FileName = filenameStr; data.FileInBase64 = fileBase64; data.FileType = filetype; data.FileExtension = extension; listDoc.Add(data); } } } catch (Exception ex) { Logger.WriteDebugLog("Download alarm doc File: Error: " + DateTime.Now + " --- " + ex.Message); } Logger.WriteDebugLog("Download alarm doc File: data return: " + DateTime.Now); return(listDoc); }