var query = dbSet.Where(where);

            var property = typeof(TEntity).GetProperty(page.Order);
            if (property != null)
            {
                var parameter = Expression.Parameter(typeof(TEntity), "p");
                var propertyAccess = Expression.MakeMemberAccess(parameter, property);
                var orderByExp = Expression.Lambda(propertyAccess, parameter);
                string methodName = page.isDesc ? "OrderByDescending" : "OrderBy";
                MethodCallExpression resultExp = Expression.Call(typeof(Queryable), methodName, new Type[] { typeof(TEntity), property.PropertyType }, query.Expression, Expression.Quote(orderByExp));
                query = query.Provider.CreateQuery<TEntity>(resultExp);
            }