Core/PagedList.cs

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;

namespace System.Collections.Generic
{
    public class PagedList<T> : List<T>
    {

        /// <summary>
        /// 页索引
        /// </summary>
        public int PageIndex { get; private set; }

        /// <summary>
        /// 页大小
        /// </summary>
        public int PageSize { get; private set; }

        /// <summary>
        /// 总数据条数
        /// </summary>
        public int TotalCount { get; private set; }

        /// <summary>
        /// 总页数
        /// </summary>
        public int TotalPages { get; private set; }

        public PagedList(List<T> source, int pageIndex, int pageSize)
        {
            PageIndex = pageIndex;
            PageSize = pageSize;
            TotalCount = source.Count();
            TotalPages = (int)Math.Ceiling(TotalCount / (double)PageSize);

            this.AddRange(source.Skip((PageIndex - 1) * PageSize).Take(PageSize));
        }


        /// <summary>
        /// 
        /// </summary>
        /// <param name="source">原数据</param>
        /// <param name="pageIndex">页号</param>
        /// <param name="pageSize">页数据量</param>
        /// <param name="totalCount">数据总数</param>
        public PagedList(List<T> source, int pageIndex, int pageSize, int totalCount)
        {
            PageIndex = pageIndex;
            PageSize = pageSize;
            TotalCount = totalCount;
            TotalPages = (int)Math.Ceiling(TotalCount / (double)PageSize);

            this.AddRange(source);
        }

        /// <summary>
        /// 是否包含上一页