public IQueryable <BrandParameterEntity> GetBrandParametersByCondition(BrandParameterSearchCondition condition)
        {
            var query = _brandparameterRepository.Table;

            try
            {
                if (condition.AddtimeBegin.HasValue)
                {
                    query = query.Where(q => q.Addtime >= condition.AddtimeBegin.Value);
                }
                if (condition.AddtimeEnd.HasValue)
                {
                    query = query.Where(q => q.Addtime < condition.AddtimeEnd.Value);
                }


                if (condition.UpdtimeBegin.HasValue)
                {
                    query = query.Where(q => q.Updtime >= condition.UpdtimeBegin.Value);
                }
                if (condition.UpdtimeEnd.HasValue)
                {
                    query = query.Where(q => q.Updtime < condition.UpdtimeEnd.Value);
                }


                if (!string.IsNullOrEmpty(condition.Parametername))
                {
                    query = query.Where(q => q.Parametername.Contains(condition.Parametername));
                }



                if (!string.IsNullOrEmpty(condition.Parametervaule))
                {
                    query = query.Where(q => q.Parametervaule.Contains(condition.Parametervaule));
                }



                if (!string.IsNullOrEmpty(condition.Adduser))
                {
                    query = query.Where(q => q.Adduser.Contains(condition.Adduser));
                }



                if (!string.IsNullOrEmpty(condition.Upduser))
                {
                    query = query.Where(q => q.Upduser.Contains(condition.Upduser));
                }



                if (condition.Ids != null && condition.Ids.Any())
                {
                    query = query.Where(q => condition.Ids.Contains(q.Id));
                }


                if (condition.ProductBrands != null && condition.ProductBrands.Any())
                {
                    query = query.Where(q => condition.ProductBrands.Contains(q.ProductBrand));
                }


                if (condition.Sorts != null && condition.Sorts.Any())
                {
                    query = query.Where(q => condition.Sorts.Contains(q.Sort));
                }



                if (condition.OrderBy.HasValue)
                {
                    switch (condition.OrderBy.Value)
                    {
                    case EnumBrandParameterSearchOrderBy.OrderById:
                        query = condition.IsDescending?query.OrderByDescending(q => q.Id):query.OrderBy(q => q.Id);
                        break;
                    }
                }

                else
                {
                    query = query.OrderBy(q => q.Id);
                }

                if (condition.Page.HasValue && condition.PageCount.HasValue)
                {
                    query = query.Skip((condition.Page.Value - 1) * condition.PageCount.Value).Take(condition.PageCount.Value);
                }
                return(query);
            }
            catch (Exception e)
            {
                _log.Error(e, "数据库操作出错");
                return(null);
            }
        }
        public int GetBrandParameterCount(BrandParameterSearchCondition condition)
        {
            var query = _brandparameterRepository.Table;

            try
            {
                if (condition.AddtimeBegin.HasValue)
                {
                    query = query.Where(q => q.Addtime >= condition.AddtimeBegin.Value);
                }
                if (condition.AddtimeEnd.HasValue)
                {
                    query = query.Where(q => q.Addtime < condition.AddtimeEnd.Value);
                }


                if (condition.UpdtimeBegin.HasValue)
                {
                    query = query.Where(q => q.Updtime >= condition.UpdtimeBegin.Value);
                }
                if (condition.UpdtimeEnd.HasValue)
                {
                    query = query.Where(q => q.Updtime < condition.UpdtimeEnd.Value);
                }


                if (!string.IsNullOrEmpty(condition.Parametername))
                {
                    query = query.Where(q => q.Parametername.Contains(condition.Parametername));
                }



                if (!string.IsNullOrEmpty(condition.Parametervaule))
                {
                    query = query.Where(q => q.Parametervaule.Contains(condition.Parametervaule));
                }



                if (!string.IsNullOrEmpty(condition.Adduser))
                {
                    query = query.Where(q => q.Adduser.Contains(condition.Adduser));
                }



                if (!string.IsNullOrEmpty(condition.Upduser))
                {
                    query = query.Where(q => q.Upduser.Contains(condition.Upduser));
                }



                if (condition.Ids != null && condition.Ids.Any())
                {
                    query = query.Where(q => condition.Ids.Contains(q.Id));
                }


                if (condition.ProductBrands != null && condition.ProductBrands.Any())
                {
                    query = query.Where(q => condition.ProductBrands.Contains(q.ProductBrand));
                }


                if (condition.Sorts != null && condition.Sorts.Any())
                {
                    query = query.Where(q => condition.Sorts.Contains(q.Sort));
                }



                return(query.Count());
            }
            catch (Exception e)
            {
                _log.Error(e, "数据库操作出错");
                return(-1);
            }
        }