using System; using System.Collections.Generic; using System.Linq; using System.Text; namespace page { public class PagedList<T> : List<T> { public PagedList(IEnumerable<T> content, int currentPage, int pageSize, int totalCount) : this(totalCount, currentPage, pageSize) { AddRange(content); } public PagedList(IQueryable<T> source, int currentPage, int pageSize) : this(source.Count(), currentPage, pageSize) { AddRange(source.Skip((CurrentPage - 1) * PageSize).Take(PageSize).ToList()); } public PagedList(IEnumerable<T> source, int currentPage, int pageSize) : this(source.Count(), currentPage, pageSize) { AddRange(source.Skip((CurrentPage - 1) * PageSize).Take(PageSize).ToList()); } protected PagedList(int count, int currentPage, int pageSize) { TotalCount = count; PageSize = Math.Max(pageSize, 1); CurrentPage = Math.Min(Math.Max(currentPage, 1), TotalPages); } public int CurrentPage { get; set; } public bool HasPreviousPage { get { return CurrentPage > 1; } } public bool HasNextPage { get { return CurrentPage < TotalPages; } } public int PageSize { get; set; } public int TotalCount { get; set; } public int TotalPages { get { return Math.Max((TotalCount + PageSize - 1) / PageSize, 1); } } } }