public ColorEntity toEntity(ColorUpdateRequest request, ColorEntity oldEntity) { ColorEntity entity = new ColorEntity(); var item = request.Item; entity.Id = request.Id; entity.ColorId = item.ColorId; entity.ColorName = item.ColorName; entity.DataStatus = oldEntity.DataStatus; entity.CreateTime = oldEntity.CreateTime; entity.LastUpdateTime = TimeConvertor.FromMilliTicks(TimeConvertor.ToMilliTicks(DateTime.Now)); return(entity); }