protected override IEnumerable <IFolder> GetFolders() { READ_DATA_TYPES types = READ_DATA_TYPES.RD_OPEN_BACKUP_FOR_RESTORE | READ_DATA_TYPES.RD_NOT_CHANGE_VERSION | READ_DATA_TYPES.RD_READ_BACKUP_TREE; jobData = new JobData(); NB_ERROR_CODE errorCode = jobData.Load(types, JsonPath, false, true); if (errorCode == NB_ERROR_CODE.EC_SUCCESS && !isDisposed) { this.CurrentFolder = jobData.GetCollection(NB_JOBDATA_COLLECTION_TYPE.NB_JOBDATA_COLLECTION_FILEBACKUPITEM) as IFileBackupItem; if (this.CurrentFolder != null && !isDisposed) { return(base.GetFolders()); } } return(this.Folders); }