public static List<T> ToPagedList<T>(this IEnumerable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, int>> keySelector)

        {

            var itemList = allItems.Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IEnumerable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, bool>> keySelector)

        {

            var itemList = allItems.Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IEnumerable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, string>> keySelector)

        {

            var itemList = allItems.Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IEnumerable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, DateTime>> keySelector)

        {

            var itemList = allItems.Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IQueryable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, int>> keySelector)

        {

            var itemList = allItems.OrderBy(keySelector).Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IQueryable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, bool>> keySelector)

        {

            var itemList = allItems.OrderBy(keySelector).Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IQueryable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, string>> keySelector)

        {

            var itemList = allItems.OrderBy(keySelector).Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }

        public static List<T> ToPagedList<T>(this IQueryable<T> allItems, int pageIndex, int pageSize, Expression<Func<T, DateTime>> keySelector)

        {

            var itemList = allItems.OrderBy(keySelector).Skip(pageSize * (pageIndex - )).Take(pageSize).ToList();

            return itemList;

        }