public ArchiveDto GetSameCategoryPreviousArchive(int siteId, int archiveId) { IContentContainer ic = this._contentRep.GetContent(siteId); IArchive archive = ic.GetPreviousSiblingArchive(archiveId); if (archive == null) { return(default(ArchiveDto)); } return(ArchiveDto.ConvertFrom(archive, true, false, false)); }